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  Visualizing census block demographics
... click links to view examples ...

  - Santa Clara County, CA
  - Jefferson County/Lakewood, CO
  - Boise, ID
  - Modesto, CA
  - Honolulu, HI
  - Shawnee Misson/Kansas City, KS
  - New Orleans, LA
  - Jefferson City, MO
  - Omaha, NE
  - Charlotte, NC
  - McKinney ISD, TX
  - Milwaukee, WI
  - Portland, OR
  - Columbus, OH
  - Richmond, VA
  - Cedar Rapids, IA
  - Chicago, IL

  Houston Metro
%Hispanic by Census Block
 
Census 2010 Census Block Demographics Database

The Census 2010 Census Block Demographics Database contains a set of Census 2010 identifier items and demographic data items (list of each below) for each more than 11 million census blocks. Organized on a state-by-state basis, the database has been derived from the Census 2010 Summary File 1 data. Datasets are available for individual counties, states and the U.S. Use these data with Proximity software including CV XE GIS, Point-to-Geocode, ProximityOne Geocoder, custom developed tools or your own software.

Census block records include an urban/rural indicator. The urban/rural indicator was developed as a part of the process to define Census 2010 urban area geography.

Applications and Usage
Use this database to (see descriptions of application topics below):
  • Create profiles for block-to-block comparative analysis (example)
  • Aggregate census block data into custom defined geography:
      - attendance zones, trading areas (example)
  • Create equivalence files;
      examples linking block to ZIP & summarizing at higher level geography:
      - ZIP Code Demographics by City/Place:
        http://proximityone.com/zip-place.htm
      - ZIP Code Demographics by School District:
        http://proximityone.com/zip-sd.htm
      - ZIP Code Demographics by Congressional District:
        http://proximityone.com/zip-cd.htm
  • Use with optional census block shapefiles for thematic mapping & geospatial analysis
      - click links at right to view thematic mapping and geospatial analysis uses


Block Data Record Fields. Each block record contains the identification fields and subject matter fields listed below.

 

Identifier Items
File IdentificationFILEID6
State/US-Abbreviation (USPS)STUSAB2
Summary LevelSUMLEV3
Geographic ComponentGEOCOMP2
Characteristic IterationCHARITER3
Characteristic Iteration File Sequence NumberCIFSN2
Logical Record NumberLOGRECNO7
RegionREGION1
DivisionDIVISION1
State (FIPS)STATE2
CountyCOUNTY3
FIPS County Class CodeCOUNTYCC2
County Size CodeCOUNTYSC2
County Subdivision (FIPS)COUSUB5
FIPS County Subdivision Class CodeCOUSUBCC2
County Subdivision Size CodeCOUSUBSC2
Place (FIPS)PLACE5
FIPS Place Class CodePLACECC2
Place Size CodePLACESC2
Census TractTRACT6
Internal Use CodeIUC2
Consolidated City (FIPS)CONCIT5
FIPS Consolidated City Class CodeCONCITCC2
Consolidated City Size CodeCONCITSC2
American Indian Area/Alaska Native Area/Hawaiian Home Land (Census)AIANHH4
American Indian Area/Alaska Native Area/Hawaiian Home Land (FIPS)AIANHHFP5
FIPS American Indian Area/Alaska Native Area/Hawaiian Home Land Class CodeAIANHHCC2
American Indian Trust Land/Hawaiian Home Land IndicatorAIHHTLI1
American Indian Tribal Subdivision (Census)AITSCE3
American Indian Tribal Subdivision (FIPS)AITS5
FIPS American Indian Tribal Subdivision Class CodeAITSCC2
Alaska Native Regional Corporation (FIPS)ANRC5
FIPS Alaska Native Regional Corporation Class CodeANRCCC2
Metropolitan Statistical Area/Micropolitan Statistical AreaCBSA5
Metropolitan Statistical Area/Micropolitan Statistical Area Size CodeCBSASC2
Metropolitan DivisionMETDIV5
Combined Statistical AreaCSA3
New England City and Town AreaNECTA5
New England City and Town Area Size CodeNECTASC2
New England City and Town Area DivisionNECTADIV5
Combined New England City and Town AreaCNECTA3
Metropolitan Statistical Area/Micropolitan Statistical Area Principal City IndicatorCBSAPCI1
New England City and Town Area Principal City IndicatorNECTAPCI1
Congressional District (111th)CD2
State Legislative District (Upper Chamber) (Year 1)SLDU3
State Legislative District (Lower Chamber) (Year 1)SLDL3
Voting DistrictVTD6
Voting District IndicatorVTDI1
ZIP Code Tabulation Area (5 digit)ZCTA55
FIPS Subminor Civil Division Class CodeSUBMCDCC2
School District (Elementary)SDELM5
School District (Secondary)SDSEC5
School District (Unified)SDUNI5
Area (Land)AREALAND14
Area (Water)AREAWATR14
Area Name-Legal/Statistical Area Description Term-Part IndicatorNAME90
Functional Status CodeFUNCSTAT1
Geographic Change User Note IndicatorGCUNI1
Population Count (100%)POP1009
Housing Unit Count (100%)HU1009
Internal Point (Latitude)INTPTLAT11
Internal Point (Longitude)INTPTLON12
Legal/Statistical Area Description CodeLSADC2
Part FlagPARTFLAG1
Urban Growth AreaUGA5
American Indian Area/Alaska Native Area/Hawaiian Home Land Size CodeAIANHHSC2
Combined Statistical Area Size CodeCSASC2
Combined NECTA Size CodeCNECTASC2
Metropolitan Micropolitan IndicatorMEMI1
NECTA Metropolitan Micropolitan IndicatorNMEMI1

Subject Matter Items -- Census 2010 DP1 Block Fields
Summary File 1 field names with description
Items selected are those available at census block level and used in Census 2010 Demographic Profile 1.
P0030001 Total Population
P0030002 Race: White alone
P0030003 Race: Black or African American alone
P0030004 Race: American Indian and Alaska Native alone
P0030005 Race: Asian alone
P0030006 Race: Native Hawaiian and Other Pacific Islander alone
P0030007 Race: Some Other Race alone
P0030008 Race: Two or More Races
P0050001 Total Population
P0050002 Not Hispanic or Latino: Total
P0050003 Not Hispanic or Latino: White alone
P0050004 Not Hispanic or Latino: Black or African American alone
P0050005 Not Hispanic or Latino: American Indian and Alaska Native alone
P0050006 Not Hispanic or Latino: Asian alone
P0050007 Not Hispanic or Latino: Native Hawaiian and Other Pacific Islander alone
P0050008 Not Hispanic or Latino: Some Other Race alone
P0050009 Not Hispanic or Latino: Two or More Races
P0050010 Hispanic or Latino: Total
P0050011 Hispanic or Latino: White alone
P0050012 Hispanic or Latino: Black or African American alone
P0050013 Hispanic or Latino: American Indian and Alaska Native alone
P0050014 Hispanic or Latino: Asian alone
P0050015 Hispanic or Latino: Native Hawaiian and Other Pacific Islander alone
P0050016 Hispanic or Latino: Some Other Race alone
P0050017 Hispanic or Latino: Two or More Races
P0120001 Total Population
P0120002 Male:
P0120003 Male: Under 5 years
P0120004 Male: 5 to 9 years
P0120005 Male: 10 to 14 years
P0120006 Male: 15 to 17 years
P0120007 Male: 18 and 19 years
P0120008 Male: 20 years
P0120009 Male: 21 years
P0120010 Male: 22 to 24 years
P0120011 Male: 25 to 29 years
P0120012 Male: 30 to 34 years
P0120013 Male: 35 to 39 years
P0120014 Male: 40 to 44 years
P0120015 Male: 45 to 49 years
P0120016 Male: 50 to 54 years
P0120017 Male: 55 to 59 years
P0120018 Male: 60 and 61 years
P0120019 Male: 62 to 64 years
P0120020 Male: 65 and 66 years
P0120021 Male: 67 to 69 years
P0120022 Male: 70 to 74 years
P0120023 Male: 75 to 79 years
P0120024 Male: 80 to 84 years
P0120025 Male: 85 years and over
P0120026 Female: Total
P0120027 Female: Under 5 years
P0120028 Female: 5 to 9 years
P0120029 Female: 10 to 14 years
P0120030 Female: 15 to 17 years
P0120031 Female: 18 and 19 years
P0120032 Female: 20 years
P0120033 Female: 21 years
P0120034 Female: 22 to 24 years
P0120035 Female: 25 to 29 years
P0120036 Female: 30 to 34 years
P0120037 Female: 35 to 39 years
P0120038 Female: 40 to 44 years
P0120039 Female: 45 to 49 years
P0120040 Female: 50 to 54 years
P0120041 Female: 55 to 59 years
P0120042 Female: 60 and 61 years
P0120043 Female: 62 to 64 years
P0120044 Female: 65 and 66 years
P0120045 Female: 67 to 69 years
P0120046 Female: 70 to 74 years
P0120047 Female: 75 to 79 years
P0120048 Female: 80 to 84 years
P0120049 Female: 85 years and over
P0130001 Median age: Total Population
P0130002 Median age: Male
P0130003 Median age: Female
P0170001 Average household size by age – total households
P0170002 Average household size by age -
P0170003 Average household size by age
P0180001 Households: Total
P0180002 Households: Family Households: Total
P0180003 Households: Family Households: Husband-Wife
P0180004 Households: Family Households: Other Family
P0180005 Households: Family Households: Other Family: Male householder, no wife
P0180006 Households: Family Households: Other Family: Female householder, no husband
P0180007 Households: Nonfamily households: Total
P0180008 Households: Nonfamily households: Householder living alone
P0180009 Households: Nonfamily households: Householder not living alone
P0290001 Population: Total
P0290002 Population in Households: Total
P0290003 Population in Households: In family households: Total
P0290004 Population in Households: In family households: Householder: Total
P0290005 Population in Households: In family households: Householder: Male
P0290006 Population in Households: In family households: Householder: Female
P0290007 Population in Households: In family households: Spouse
P0290008 Population in Households: In family households: Biological child
P0290009 Population in Households: In family households: Adopted child
P0290010 Population in Households: In family households: Stepchild
P0290011 Population in Households: In family households: Grandchild
P0290012 Population in Households: In family households: Brother or sister
P0290013 Population in Households: In family households: Parent
P0290014 Population in Households: In family households: Parent-in-law
P0290015 Population in Households: In family households: Son-in-law or daughter-in-law
P0290016 Population in Households: In family households: Other relatives
P0290017 Population in Households: In family households: Nonrelatives
P0290018 Population in Households: In nonfamily households: Total
P0290019 Population in Households: In nonfamily households: Male householder: Total
P0290020 Population in Households: In nonfamily households: Male householder: Living alone
P0290021 Population in Households: In nonfamily households: Male householder: Not living alone
P0290022 Population in Households: In nonfamily households: Female householder: Total
P0290023 Population in Households: In nonfamily households: Female householder: Living alone
P0290024 Population in Households: In nonfamily households: Female householder: Nnot living alone
P0290025 Population in Households: In nonfamily households: Nonrelatives
P0290026 Population in Group Quarters: Total
P0290027 Population in Group Quarters: Institutionalized
P0290028 Population in Group Quarters: Noninstitutionalized
P0370001 Families: Average Family Size: Total
P0370002 Families: Average Family Size: Under 18 years
P0370003 Families: Average Family Size: 18 years and over
H0030001 Housing Units: Total
H0030002 Housing Units: Occupied
H0030003 Housing Units: Vacant
H0040001 Occupied Housing Units: Total
H0040002 Occupied Housing Units: Owned with mortgage or loan
H0040003 Occupied Housing Units: Owned free and clear
H0040004 Occupied Housing Units: Renter occupied
H0050001 Vacant Housing Units: Total
H0050002 Vacant Housing Units: For rent
H0050003 Vacant Housing Units: Rented, not occupied
H0050004 Vacant Housing Units: For sale only
H0050005 Vacant Housing Units: Sold, not occupied
H0050006 Vacant Housing Units: For seasonal, recreational, or occasional use
H0050007 Vacant Housing Units: For migrant workers
H0050008 Vacant Housing Units: Other vacant
H0100001 Population in Occupied Housing Units
H0110001 Population in Occupied Housing Units: Total
H0110002 Population in Occupied Housing Units: Owned with a mortgage or loan
H0110003 Population in Occupied Housing Units: Owned free and clear
H0110004 Population in Occupied Housing Units: Renter occupied
H0120001 Average Household Size of Occupied Housing Units: Total
H0120002 Average Household Size of Occupied Housing Units: Owner occupied
H0120003 Average Household Size of Occupied Housing Units: Renter occupied

Sample Profile Display Using Demographic Data Analyst
Census 2010 Demographic Profile DP1 -- Census 2010 Blocks
ProximityOne -- http://proximityone.com/cen2010_sf1.htm

This profile illustrates how demographics for any combination of census blocks can be examined in the form of demographic profile and the data aggregated to custom defined study areas. In this example, demographics for two census blocks in Forsyth County, GA are displayed in DP1 structure and aggregated (third column set). Demographic profiles are not available for census blocks from the Census Bureau, but can be developed and analyzed using ProximityOne tools. Contact us for additional information (888-364-7656).
Geographic Area -->    Census 2010 Block
[GA-131171304102017]
Census 2010 Block
[GA-131171304102028]
MultiArea Summary
SubjectNumberPercentNumberPercentNumberPercent
SEX AND AGE       
  Total population 235 100.0 1,053 100.0 1,288 100.0
    Under 5 years 0 0.0 82 7.8 82 6.4
    5 to 9 years 0 0.0 44 4.2 44 3.4
    10 to 14 years 0 0.0 62 5.9 62 4.8
    15 to 19 years 17 7.2 40 3.8 57 4.4
    20 to 24 years 60 25.5 90 8.5 150 11.6
    25 to 29 years 39 16.6 109 10.4 148 11.5
    30 to 34 years 23 9.8 95 9.0 118 9.2
    35 to 39 years 29 12.3 79 7.5 108 8.4
    40 to 44 years 25 10.6 76 7.2 101 7.8
    45 to 49 years 22 9.4 48 4.6 70 5.4
    50 to 54 years 11 4.7 47 4.5 58 4.5
    55 to 59 years 4 1.7 42 4.0 46 3.6
    60 to 64 years 5 2.1 40 3.8 45 3.5
    65 to 69 years 0 0.0 27 2.6 27 2.1
    70 to 74 years 0 0.0 29 2.8 29 2.3
    75 to 79 years 0 0.0 29 2.8 29 2.3
    80 to 84 years 0 0.0 29 2.8 29 2.3
    85 years and over 0 0.0 85 8.1 85 6.6
    Median age (years) 30.3... 35.3... 32.8...
    5 to 17 years 4 1.7 127 12.1 131 10.2
    18 years and over 231 98.3 844 80.2 1,075 83.5
    21 years and over 203 86.4 817 77.6 1,020 79.2
    62 years and over 4 1.7 221 21.0 225 17.5
    65 years and over 0 0.0 199 18.9 199 15.5
  Male population 195 83.0 437 41.5 632 49.1
    Under 5 years 0 0.0 54 5.1 54 4.2
    5 to 9 years 0 0.0 19 1.8 19 1.5
    10 to 14 years 0 0.0 30 2.8 30 2.3
    15 to 19 years 15 6.4 17 1.6 32 2.5
    20 to 24 years 52 22.1 45 4.3 97 7.5
    25 to 29 years 33 14.0 55 5.2 88 6.8
    30 to 34 years 20 8.5 43 4.1 63 4.9
    35 to 39 years 24 10.2 39 3.7 63 4.9
    40 to 44 years 18 7.7 36 3.4 54 4.2
    45 to 49 years 13 5.5 16 1.5 29 2.3
    50 to 54 years 11 4.7 17 1.6 28 2.2
    55 to 59 years 4 1.7 10 0.9 14 1.1
    60 to 64 years 5 2.1 17 1.6 22 1.7
    65 to 69 years 0 0.0 8 0.8 8 0.6
    70 to 74 years 0 0.0 12 1.1 12 0.9
    75 to 79 years 0 0.0 6 0.6 6 0.5
    80 to 84 years 0 0.0 5 0.5 5 0.4
    85 years and over 0 0.0 8 0.8 8 0.6
    Median age (years) 29.6... 29.8... 29.7...
    5 to 17 years 4 1.7 57 5.4 61 4.7
    18 years and over 191 81.3 326 31.0 517 40.1
    21 years and over 167 71.1 312 29.6 479 37.2
    62 years and over 4 1.7 47 4.5 51 4.0
    65 years and over 0 0.0 39 3.7 39 3.0
  Female population 40 17.0 616 58.5 656 50.9
    Under 5 years 0 0.0 28 2.7 28 2.2
    5 to 9 years 0 0.0 25 2.4 25 1.9
    10 to 14 years 0 0.0 32 3.0 32 2.5
    15 to 19 years 2 0.9 23 2.2 25 1.9
    20 to 24 years 8 3.4 45 4.3 53 4.1
    25 to 29 years 6 2.6 54 5.1 60 4.7
    30 to 34 years 3 1.3 52 4.9 55 4.3
    35 to 39 years 5 2.1 40 3.8 45 3.5
    40 to 44 years 7 3.0 40 3.8 47 3.6
    45 to 49 years 9 3.8 32 3.0 41 3.2
    50 to 54 years 0 0.0 30 2.8 30 2.3
    55 to 59 years 0 0.0 32 3.0 32 2.5
    60 to 64 years 0 0.0 23 2.2 23 1.8
    65 to 69 years 0 0.0 19 1.8 19 1.5
    70 to 74 years 0 0.0 17 1.6 17 1.3
    75 to 79 years 0 0.0 23 2.2 23 1.8
    80 to 84 years 0 0.0 24 2.3 24 1.9
    85 years and over 0 0.0 77 7.3 77 6.0
    Median age (years) 35.5... 41.2... 38.4...
    5 to 17 years 0 0.0 70 6.6 70 5.4
    18 years and over 40 17.0 518 49.2 558 43.3
    21 years and over 36 15.3 505 48.0 541 42.0
    62 years and over 0 0.0 174 16.5 174 13.5
    65 years and over 0 0.0 160 15.2 160 12.4
RACE       
  Total population 235 100.0 1,053 100.0 1,288 100.0
    One Race 233 99.1 1,032 98.0 1,265 98.2
      White 200 85.1 790 75.0 990 76.9
      Black or African American 23 9.8 77 7.3 100 7.8
      American Indian and Alaska Native 3 1.3 7 0.7 10 0.8
      Asian 1 0.4 31 2.9 32 2.5
      Native Hawaiian and Other Pacific Islander 0 0.0 0 0.0 0 0.0
      Some Other Race 6 2.6 127 12.1 133 10.3
    Two or More Races 2 0.9 21 2.0 23 1.8
HISPANIC OR LATINO AND RACE       
  Total population 235 100.0 1,053 100.0 1,288 100.0
    Hispanic or Latino 36 15.3 193 18.3 229 17.8
      White alone 25 10.6 67 6.4 92 7.1
      Black or African American alone 1 0.4 0 0.0 1 0.1
      American Indian and Alaska Native alone 3 1.3 2 0.2 5 0.4
      Asian alone 0 0.0 0 0.0 0 0.0
      Native Hawaiian and Other Pacific Islander alone 0 0.0 0 0.0 0 0.0
      Some Other Race alone 6 2.6 119 11.3 125 9.7
      Two or More Races 1 0.4 5 0.5 6 0.5
    Not Hispanic or Latino 199 84.7 860 81.7 1,059 82.2
      White alone 175 74.5 723 68.7 898 69.7
      Black or African American alone 22 9.4 77 7.3 99 7.7
      American Indian and Alaska Native alone 0 0.0 5 0.5 5 0.4
      Asian alone 1 0.4 31 2.9 32 2.5
      Native Hawaiian and Other Pacific Islander alone 0 0.0 0 0.0 0 0.0
      Some Other Race alone 0 0.0 8 0.8 8 0.6
      Two or More Races 1 0.4 16 1.5 17 1.3
RELATIONSHIP       
  Total population 235 100.0 1,053 100.0 1,288 100.0
    In households 0 0.0 938 89.1 938 72.8
      Householder 0 0.0 223 21.2 223 17.3
      Spouse [6] 0 0.0 115 10.9 115 8.9
      Child 0 0.0 243 23.1 243 18.9
      Other relatives 0 0.0 57 5.4 57 4.4
      Nonrelatives 0 0.0 27 2.6 27 2.1
    In group quarters 235 100.0 115 10.9 350 27.2
      Institutionalized population 235 100.0 115 10.9 350 27.2
      Noninstitutionalized population 0 0.0 0 0.0 0 0.0
HOUSEHOLDS BY TYPE       
  Total households 0... 447 100.0 447 100.0
    Family households (families) [7] 0... 223 49.9 223 49.9
      Husband-wife family 0... 115 25.7 115 25.7
      Male householder, no wife present 0... 25 5.6 25 5.6
      Female householder, no husband present 0... 83 18.6 83 18.6
    Nonfamily households [7] 0... 224 50.1 224 50.1
      Householder living alone 0... 183 40.9 183 40.9
    Average household size 0.00... 2.10... 1.05...
    Average family size [7] 0.00... 2.86... 1.43...
HOUSING OCCUPANCY       
  Total housing units 0... 479 100.0 479 100.0
    Occupied housing units 0... 447 93.3 447 93.3
    Vacant housing units 0... 32 6.7 32 6.7
      For rent 0... 23 4.8 23 4.8
      Rented, not occupied 0... 0 0.0 0 0.0
      For sale only 0... 6 1.3 6 1.3
      Sold, not occupied 0... 1 0.2 1 0.2
      For seasonal, recreational, or occasional use 0... 1 0.2 1 0.2
      All other vacants 0... 1 0.2 1 0.2
    Homeowner vacancy rate (percent) [8] 0.0... 6.9... 3.4...
    Rental vacancy rate (percent) [9] 0.0... 5.9... 2.9...
HOUSING TENURE       
  Occupied housing units 0... 447 100.0 447 100.0
    Owner-occupied housing units 0... 80 17.9 80 17.9
      Population in owner-occupied housing units 0 0.0 152 14.4 152 11.8
      Average household size of owner-occupied units 0.00... 1.90... 0.95...
    Renter-occupied housing units 0... 367 82.1 367 82.1
      Population in renter-occupied housing units 0 0.0 786 74.6 786 61.0
      Average household size of renter-occupied units 0.00... 4.28... 2.14...
Some notes shown below may not appear in profile depending on geographic selections.
[1] Other Asian alone, or two or more Asian categories.
[2] Other Pacific Islander alone, or two or more Native Hawaiian and Other Pacific Islander categories.
[3] One of the four most commonly reported multiple-race combinations nationwide in Census 2000.
[4] In combination with one or more of the other races listed. The six numbers may add to more than the total population, and the six percentages may add to more than 100 percent because individuals may report more than one race.
[5] This category is composed of people whose origins are from the Dominican Republic, Spain, and Spanish-speaking Central or South American countries. It also includes general origin responses such as "Latino" or "Hispanic."
[6] "Spouse" represents spouse of the householder. It does not reflect all spouses in a household. Responses of "same-sex spouse" were edited during processing to "unmarried partner."
[7] "Family households" consist of a householder and one or more other people related to the householder by birth, marriage, or adoption. They do not include same-sex married couples even if the marriage was performed in a state issuing marriage certificates for same-sex couples. Same-sex couple households are included in the family households category if there is at least one additional person related to the householder by birth or adoption. Same-sex couple households with no relatives of the householder present are tabulated in nonfamily households. "Nonfamily households" consist of people living alone and households which do not have any members related to the householder.
[8] The homeowner vacancy rate is the proportion of the homeowner inventory that is vacant "for sale." It is computed by dividing the total number of vacant units "for sale only" by the sum of owner-occupied units, vacant units that are "for sale only," and vacant units that have been sold but not yet occupied; and then multiplying by 100.
[9] The rental vacancy rate is the proportion of the rental inventory that is vacant "for rent." It is computed by dividing the total number of vacant units "for rent" by the sum of the renter-occupied units, vacant units that are "for rent," and vacant units that have been rented but not yet occupied; and then multiplying by 100.

Companion Databases. Too much or not the right geographic detail? The demographic subject matter contained in the CENBLK database are also immediately available on a national scope, similarly structured, for counties, cities, school districts, traffic analysis zones, ZIP code areas, census tracts, block groups, and other geographic areas. Do you need time-series data or data regarding demographic change over time? Proximity has companion geographic crosswalk files that enable you, or Proximity as a service, to develop data, say from the 2000 Census, for geography corresponding to Census 2010 geography.

Ready to Map. The CENBLK database is organized as in highly transportable dBase file structure. Integrate these data directly with your existing GIS shapefiles using your own software or the Proximity dBMerge software. Integrate the CENBLK demographics into the census block shapefiles (see http://proximityone.com/mapfiles.htm).

Examples of mapping/geospatial analysis using census block geodemographics:
  -- Houston, TX MSA
  -- Texas Statewide
  -- Santa Clara County, CA

Uses by Application Area. The CENBLK database uniquely meets a wide range of reference, planning, analysis, and data linkage needs. Some examples of uses are presented below.

Market Size/Composition. Use these maximum geographic granularity demographic data to target your marketing, sales, operations, logistics, and related customer/market -oriented needs.

Education. Here a two examples of using these data for K-12 education applications. Develop demographics for existing or prospective new attendance areas. Learn what the size of the population service area is under different attendance area geographic scenarios.

For districts that change boundaries since the 2009-2010 school year (date for school district boundary data in Census 2010 references), you can tabulate the size and characteristics of the new district configuration and assess implication since changes from previous boundaries.

NTIA Broadband Initiative. Census block level data are of critical importance to the U.S. National Telecommunications and Information Administration (NTIA) broadband availability enhancement. Only using the 2010 census block data can broadband providers accurately assess broadband availability by urban/rural geography.

Civil Rights Issues. The single year of age detail, by gender, in the CENBLK database provide an easily accessible database useful in wide ranging applications involving civil rights cases. It becomes a relatively straightforward application to determine the demographic size and composition of any study area.

Health. The Census 2010 data are used in many application areas as "denominator" data. That is, by knowing the size of the population or housing served, health analysts can better examine the implications of magnitude associate with health-related measures that are often difficult to measure directly. Areas subject to analysis for health-related reasons are sometimes defined in a fluid manner making the block level granularity ideal to develop denominator data for health cachement areas.

Environment. The impact of pollutants along a stream or coastal area can often be measured in terms of toxicity to the geographic area exposed. The census block data enable analysts to examine the size of particular types of population adjacent to environmental impact sites.

Disaster Planning. The CENBLK database is a unique way to be able to determine the impact of any type of disaster with near pin-point accuracy -- and dynamically.

Aggregate Block Data. ProximityOne has used the CENBLK file to develop ZIP Code and school district attendance zone data aggregates. Similar aggregate data can be developed for study areas based radii, corridors, or geographic correspondence of block within an area. Aggregate the Census 2010 demographics contained in the data record to your target geography. The data record contains the latitude-longitude as well as the full sequence of geocodes to enable these types of data aggregation.

Geographic Relationships. Determine, for example, what ZIP code areas are partly/wholly contained with a city, metropolitan area, county, custom study area, or many other types of geography. Use the block correspondence list to enable your software to aggregate non-census data to block or any of these other areas.

Census 2000 - Census 2010 Census Block Relationships
When comparing demographic patterns and change between Census 2000 and Census 2010 it is typically important to be able to compare the same geography. For example, what was Census 2000 block 1007 in tract 4124.00 (aka 4124 aka 412400) in Harris County, Texas is subdivided into several blocks for Census 2010. See these relationships by map view and tabularly in the Census 2000 - Census 2010 Census Block Relationships Gallery views.

Prospective new alignments in geographies such changing, alternative boundaries for congressional districts, state legislative districts, trade areas, enterprise zones, city/township board areas, school district attendance zones, among others need to take into account how component census blocks compare between Census 2000 and Census 2010. Census 2000-Census 2010 census block equivalance data provide this ability.

Census 2000-Census 2010 Census Block Equivalance Dataset Fields
ST002000 tabulation state FIPS code
CO002000 tabulation county FIPS code
TR002000 census tract number
BL002000 tabulation block number
BS002000 tabulation block suffix
LA002000 Land Area (in square meters)
WA002000 Water Area (in square meters)
BP002010 tabulation block part flag; Blank = whole; P = part
ST102010 tabulation state FIPS code
CO102010 tabulation county FIPS code
TR102010 census tract number
BL102010 tabulation block number
BS102010 tabulation block suffix
LA102010 Land Area (in square meters)
WA102010 Water Area (in square meters)
BP102010 tabulation block part flag; Blank = whole; P = part
LAINTIntersection Land Area shared by the 2000 and 2010 blocks represented by the record (square meters)
WAINTIntersection Water Area shared by the 2000 and 2010 blocks represented by the record (square meters)


Support. ProximityOne supports usage of the CENBLK in several ways. Expert assistance is available to answer any question about the content and provide assistance with technical processing issues and analytically-oriented applications. Several ProximityOne software components are available to facilitate applications. The database will continue to have companion database development in regards to geographic derivative files from the TIGER shapefiles.

How to Order. The CENBLK database may be ordered under a perpetual usage, non-exclusive license. Single user and site licenses are available. The database may be acquired on a state-by-state or national set of state files. The database price for a site license to the national file set is less than 1/10th of one cent per geographic area.

About ProximityOne. ProximityOne develops geographic-demographic-economic data and analytical tools and helps organizations knit together and use diverse data in a decision-making and analytical framework. We develop custom demographic/economic estimates and projections, develop geographic and geocoded address files, and assist with impact and geospatial analyses. Wide-ranging organizations use our tools (software, data, methodologies) to analyze their own data integrated with other data. Contact us (888-364-7656) with questions or for additional information.


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