CV XE GIS Home Page

  ProximityOne Home

  DMD Sections
    Feature Names


    Feature Class Codes

    Scope of Files



  Situation & Outlook

  CV XE GIS Tools

  Data Resources Guide
  - projections to 2060

  Related Sections
  - Applications Gallery
  - States
  - Metros
  - Congressional District
  - School Districts
  - Counties
  - Cities/Places
  - Tracts/Neighborhoods
  - Block Groups
  - Census Blocks

  - ZIP Codes
  - Urban Areas

  - 2060 Demographic
    ... all county interactive table
  - 2030 Demographic-Economic
  - Single Year of Age

  GIS Thematic Mapping
    Visual Analysis Tools

  Ranking Tables
    National Scope
    Demographic Change
  - States
  - Metros
  - Congressional District
  - School Districts
  - Counties
  - Cities/Places
  - Census Tracts

ProximityOne Digital Map Database

Decision-Making Information
  information resources & solutions
  (888) DMI-SOLN
  (888) 364-7656

Put data to work more effectively.
Certificate in Data Analytics

Visual analysis with ProximityOne tools
click graphic for info; hover to pause

visually analyze clients/markets
site analysis using 1 mile radius


$median household income
patterns by census tract - Houston

hover to pause

113th Congressional Districts

Click for info

US Asian Indian population 2010

Click for info

geocoded students and school
McKinney ISD, TX

Click for info

geocoded students and school
with tax parcels & streets

Click for info

high school attendance zones
with schools by type

Click for info

%high school graduates by
census tract - Puerto Rico

Click for info

Austin, TX MSA counties &
places 10K+ population markers

Click for info

Appalachia counties (green) &
coalfield counties (orange)

Click for info

China provinces percent urban &
cities (markers) by state plan

Click for info

Honolulu census tracts (red)
& census blocks

Central Park area NYC

Click for info

Kansas City Metro & Counties
Home Depot locations (markers)

Click for info

World Cities; focus on Spain

Click for info

Data Analytics Blog
Mapping Statistical Data

Support & Technical Assistance
help using these resources

The ProximityOne Digital Map Database (DMD) is comprised of point, line and area shapefiles and related datasets covering the United States. DMD is used to associate virtually any type of subject matter data to the geographic infrastructure down to the address and intersection level of detail. Vector-based geography include:
  • Points ... address locations, schools, hospitals, other related
  • Lines ... roads, railroads, water, other related.
  • Area/polygon ... statistical & political area boundaries, other related
Derived resources:
  • Census Tract/Block Street Index

DMD is updated continuously and covers the United States, Puerto Rico and U.S. territorial areas.

DMD is an extension and update to the Census Bureau TIGER/Line (TLF) shapefiles. Warren Glimpse, founder of ProximityOne, developed the Columbia, MO GBF/DIME file used as the prototype for the TLF program and is developer of desktop and Web-based GIS applications/tools (CVXE GIS tools using TLF data integrated with other wide-ranging data).

Augmenting the Census 2010 and more recent vintage TLF, DMD is developed on a TLF base that benefits from the extensive re-working of the TLF data under the LUCA and MAF programs. Use of improved coordination with local street centerline files, E911 data, and address coverage editing the new TLF data are vastly improved relative to previous versions.

Segment Side Geocoding
Having intersection-to-intersection road segments coded with address ranges on both sides of the segment has always been an important feature of the TLF data. Since the geocodes (such as census block) are also coded to both sides of the road segment, the TLF data provide a near unique means of correctly assigning an address to a geocode.

Filling in Gaps; Keeping Current
Even with improvement in the Census 2010 and successor TLFs, there are significant gaps and omissions. DMD improves the TLF by updating and completing key missing or incorrect data values (address ranges, ZIP codes, other) in a manner that enables a cross-walk back to the original TLF record.

Similarly, Census TLFs are obsolete in many respects by the time they becomes available for public use. Newer road segments have already been added; others removed; others have had attributes change in value. DMD improves the TLF by updating and completing segments in a manner that enables a cross-walk back to the original TLF record.

Unique Shapefiles Reflecting Today's Geography
As certain geographies change, such as school districts, DMD is updated with a cross-walk back to the original TLF record. Point-oriented data that are missing or incorrectly coded, such as schools, are updated. Other geographic lines/points/polygons, not available from Census, are developed using DMD. These areas include ZIP Code Area (ZCAs), School Attendance Zones (SAZs) and Census 2000-like urban areas.

Line/Segment Shapefiles
  • All Lines
    - Major Roads
    - Detail Roads

Point/Marker Shapefiles
  • All Points
    - Hospitals
    - Public Schools
    - Private Schools

Boundary Shapefiles
  U.S. & State   Core-Based Statistical Area   City/Place   ZIP Code Area
  Congressional District   Metropolitan Division   County Subdivision   Census Tract
  County   Urbanized Area/Urban Cluster   School District   Census Block Group
    Urban Cluster   School Attendance Zone   Census Block

ProximityOne User Group
Join the ProximityOne User Group to keep up-to-date with new developments relating to metros and component geography decision-making information resources. Receive updates and access to tools and resources available only to members. Use this form to join the User Group.

Support Using these Resources
Learn more about accessing and using demographic-economic data and related analytical tools. Join us in a Data Analytics Lab session. There is no fee for these one-hour Web sessions. Each informal session is focused on a specific topic. The open structure also provides for Q&A and discussion of application issues of interest to participants.

Additional Information
ProximityOne develops geodemographic-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. Follow ProximityOne on Twitter at Contact us (888-364-7656) with questions about data covered in this section or to discuss custom estimates, projections or analyses for your areas of interest.

Copyright © . ProximityOne. All Rights Reserved.
Sitemap | Contact Us | News