These statistical areas also may be used to tabulate and present American Community Survey (ACS) data post-2010. The Economic Census may also tabulate and present data for selected census designated places (CDPs) according to specific population and employment thresholds.
| Census County Divisions (CCDs) | The Census Bureau will retain CCDs as geographic entities for the 2010 Census. |
|---|---|
| Census Designated Places (CDPs) | A CDP cannot have zero population and zero housing units. |
| A CDP cannot be coextensive with a governmentally active minor civil division (i.e.,town, township, charter township, plantation). This change will reduce redundancy in place and county subdivision data tabulations for the following states: Connecticut, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Wisconsin. | |
| A CDP must represent a single, distinct community. A CDP that represents multiple, distinct communities, and the hyphenated name typically assigned to represent such CDPs, will not be permitted. Exceptions will be made for communities whose identities have merged and in which both names commonly are used together. | |
| Census Tract | Population Thresholds. Minimum: 1,200 Maximum: 8,000 Optimum: 4,000 |
| Housing Unit Thresholds. Minimum: 480 Maximum: 3,200 Optimum: 1,600 |
|
| All types of populated census tracts must meet the same thresholds. | |
| Wherever possible census tracts conform to American Indian reservations. | |
| Special census tracts may be created for large special land use areas without housing units or population (e.g., large public parks, forests). | |
| Block Groups (BGs) | Population Thresholds. Minimum: 600 Maximum: 3,000 Optimum: none |
| Housing unit counts may be used to meet BG thresholds. Minimum: 240 Maximum: 1,200 Optimum: none |
|
| All types of populated BGs must meet the same thresholds. | |
| Wherever possible BGs conform to American Indian reservations. | |
| Special BGs may be created for large special land use areas without housing units or population (e.g., large public parks, forests). |
Proposed Criteria for PSAP Entities
The census tract, and census block group, proposed criteria for the 2010 Census were published in the Federal Register on April 6, 2007 [72-FR-17324-17343].
PSAP background, schedule, and participation information can be found at: http://www.census.gov/geo/www/psap2010/psap2010_main.html. Requests for additional information should be directed to the Geographic Standards and Criteria Branch, Geography Division, U.S. Census Bureau, via e-mail at geo.psap.list@census.gov or telephone at 301-763-3056.
denotes a file in Adobe’s Portable Document Format.
To view the file, you will need the
Adobe® Acrobat® Reader
available free from Adobe.
