|
|
|
U.S. by County GeoDemographic Database -- Census 2000 Tier 1 Subject Matter The U.S. by County GeoDemographic Database contains the most widely used Census 2000 demographic data for all U.S. counties and Puerto Rico municipios. The database consists of four subject matter files containing data as organized and described in the following links. • DP-1 General Demographics • DP-2 Social Characteristics • DP-3 Economic Characteristics • DP-4 Housing Characteristics Proximity has structured these files in a manner that saves you time and gives you maximum flexibility to use the data. Optional file structures enable you to meet your application needs without restructuring the files. Also, unlike many county oriented files, these files include the metropolitan area codes in the data record. Select the metropolitan areas of interest for your analyses. Use the Database in Shapefile and/or Non-Shapefile Structure. The database is organized in both shapefile structure and as non-shapefile structure. You benefit from this because you can immediately use the shapefile structured version to display thematic maps. Use the non-shapefile version with non-GIS/mapping applications. A shapefile is a specially structured set of files that integrates the demographic and geographic data. But there can be a problem in using shapefiles in non-mapping applications. This is why the data are provided in shapefile and non-shapefile structure. The problem is that some counties are represented as multiple polygons. In the shapefile structure, the database record is replicated for each polygon even though it is the same county. As a result, when the shapefile database file is sorted, aggregated, or queried with non-GIS software undesirable results can occur. It is easy to see how this situation manifests itself. The shapefile database files contain 3,489 records representing the 3,219 counties and county equivalent areas. CD-ROM Contains Both Structures. The CD-ROM contains the following files: Shapefile structured: USCTYDP1.* (dbf, shp, shx) USCTYDP2.* (dbf, shp, shx) USCTYDP3.* (dbf, shp, shx) USCTYDP4.* (dbf, shp, shx) Since each subject matter file is its own shapefile structure, you can prepare maps with them independently, using freeware like ArcExplorer, or use ArcView and other GIS software to join database files. You have maximum flexibility. Non-Shapefile structured: USCODP1.DBF USCODP2.DBF USCODP3.DBF USCODP4.DBF Uses of the Data. You not only benefit from the flexible file structuring, but you have fingertip access to the most basic sociometric data for use for years ahead. More than just the most current data on many characteristics, these data will be useful for benchmarking and "denominator" analyses for many years -- a permanent part of your reference and research resources. Here are a few of the type of applications areas supported. • County within metropolitan area relative analyses • Income and poverty analyses • Sources and different measures of earnings • Age, race, gender distribution • Family and household composition • Housing markets; housing affordability • Housing unit age and attributes • Multicultural analyses • School enrollment; educational attainment • Labor force characteristics • Employment by industry and occupation • Ancestry and country of origin • Ability to speak English • Persons with disabilities How to Order. The U.S. by County GeoDemographic Database: Tier 1 CD-ROM may be purchased by check or credit card. The price is $295. Option 1: Paying by Credit Card. To pay by credit card using this secure Web link: Pay by credit card Option 2: Pay by Check. Complete this form if you are paying by check. A confirming e-mail is sent to you upon receiving your order. A statement is sent if you are paying by check. Orders paid by credit card are shipped within 2 days. Orders paid by check can be shipped on the same day that your payment is mailed. Expedited delivery is available. goto top |
|
|