Census Tracts 1990
Census Tracts are small, relatively permanent statistical subdivisions
of a county or equivalent entity that are updated by local participants
prior to each decennial census as part of the Census Bureau's
Participant Statistical Areas Program. The Census Bureau delineates
census tracts in situations where no local participant existed or where
state, local, or tribal governments declined to participate. The primary
purpose of census tracts is to provide a stable set of geographic units
for the presentation of statistical data.
Census tracts generally have a population size between 1,200 and 8,000
people, with an optimum size of 4,000 people. A census tract usually
covers a contiguous area; however, the spatial size of census tracts
varies widely depending on the density of settlement. Census tract
boundaries are delineated with the intention of being maintained over a
long time so that statistical comparisons can be made from census to
census. Census tracts occasionally are split due to population growth or
merged as a result of substantial population decline.
| Field |
Value |
| accessLevel |
public
|
| catalog_@context |
https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
|
| catalog_@id |
https://data.seattle.gov/data.json
|
| catalog_conformsTo |
https://project-open-data.cio.gov/v1.1/schema
|
| catalog_describedBy |
https://project-open-data.cio.gov/v1.1/schema/catalog.json
|
| identifier |
https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::census-tracts-1990
|
| issued |
2012-07-02
|
| landingPage |
https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::census-tracts-1990
|
| license |
http://opendatacommons.org/licenses/pddl/summary
|
| metadata_type |
geospatial
|
| modified |
2019-04-15
|
| old-spatial |
-122.4328,47.4933,-122.2422,47.7357
|
| publisher |
City of Seattle GIS Program
|
| resource-type |
Dataset
|
| source_datajson_identifier |
true
|
| source_hash |
10eea3fec9b1883dbfa4efb71febd09fede824ac
|
| source_schema_version |
1.1
|
| spatial |
{"type": "Polygon", "coordinates": [[[-122.4328, 47.4933], [-122.4328, 47.7357], [-122.2422, 47.7357], [-122.2422, 47.4933], [-122.4328, 47.4933]]]}
|
| theme |
{geospatial}
|
| Groups |
- AmeriGEOSS
- National Provider
- North America
|
| Tags |
- 1990
- amerigeo
- amerigeoss
- boundaries
- census
- ckan
- cosgis
- geo
- geoss
- gis
- national
- north-america
- planning
- seattle
- seattlecitygis
- tract
- united-states
- wa
- wmcensustract90
|
| isopen |
False
|
| license_id |
other-license-specified
|
| license_title |
other-license-specified
|
| maintainer |
site.admin_SeattleCityGIS
|
| maintainer_email |
mapgis.mapgis@seattle.gov
|
| metadata_created |
2025-11-22T11:52:26.919540
|
| metadata_modified |
2025-11-22T11:52:26.919545
|
| notes |
<div>Census Tracts are small, relatively permanent statistical subdivisions
of a county or equivalent entity that are updated by local participants
prior to each decennial census as part of the Census Bureau's
Participant Statistical Areas Program. The Census Bureau delineates
census tracts in situations where no local participant existed or where
state, local, or tribal governments declined to participate. The primary
purpose of census tracts is to provide a stable set of geographic units
for the presentation of statistical data.
Census tracts generally have a population size between 1,200 and 8,000
people, with an optimum size of 4,000 people. A census tract usually
covers a contiguous area; however, the spatial size of census tracts
varies widely depending on the density of settlement. Census tract
boundaries are delineated with the intention of being maintained over a
long time so that statistical comparisons can be made from census to
census. Census tracts occasionally are split due to population growth or
merged as a result of substantial population decline. </div>
|
| num_resources |
6
|
| num_tags |
19
|
| title |
Census Tracts 1990
|