Census Tracts, 1990 - San Francisco Bay Area, California
Abstract/Contents
- Abstract
- This polygon shapefile displays Census tracts for the San Francisco Bay Area in California, based on entity boundaries established on January 1, 1990. These data have been clipped to the shoreline for cartographic representation. Census tracts are small, relatively permanent statistical subdivisions of a county (or statistical equivalent of a county), and are defined by local participants as part of t he U.S. Census Bureau's Participant Statistical Areas Program. The U.S. Census Bureau delineated the census tracts in situations where no local participant existed or where local or tribal governments declined to participate. This layer is part of the Bay Area Metropolitan Transportation Commission (MTC) GIS Maps and Data collection.
- Purpose
- This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.
Description
| Type of resource | cartographic, software, multimedia |
|---|---|
| Form | Shapefile |
| Extent | 1.9 |
| Place | Oakland, California, US |
| Publisher | California. Metropolitan Transportation Commission |
| Date valid | 1990 |
| Publication date | 2002 |
| Language | English |
| Digital origin | born digital |
| Map data | Scale not given. ; Custom projection W 123°38ʹ4ʺ--W 121°9ʹ55ʺ/N 38°51ʹ57ʺ--N 36°53ʹ21ʺW 123°38ʹ1ʺ--W 121°12ʹ33ʺ/N 38°51ʹ51ʺ--N 36°53ʹ39ʺ, Scale not given ; EPSG::4326 |
Creators/Contributors
| Creator | California. Metropolitan Transportation Commission |
|---|
Subjects
| Subject | Census |
|---|---|
| Subject | Census districts |
| Subject | San Francisco Bay Area (Calif.) |
| Subject | San Francisco (Calif.) |
| Subject | Contra Costa County (Calif.) |
| Subject | Napa County (Calif.) |
| Subject | San Mateo County (Calif.) |
| Subject | San Mateo County (Calif.) |
| Subject | Solano County (Calif.) |
| Subject | Sonoma County (Calif.) |
| Subject | Marin County (Calif.) |
| Subject | Alameda County (Calif.) |
| Subject | 1990 |
| Subject | Boundaries |
| Genre | Geospatial data |
| Genre | Cartographic dataset |
Bibliographic information
| WGS84 Cartographics | This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection. |
|---|---|
| Location | https://purl.stanford.edu/pb075qv9758 |
Access conditions
- Use and reproduction
- This item is in the public domain. There are no restrictions on use.
- Copyright
- This work is in the Public Domain, meaning that it is not subject to copyright.
Preferred citation
- Preferred citation
- California, Metropolitan Transportation Commission. (2002). Census Tracts, 1990 - San Francisco Bay Area, California. MTC. Available at: http://purl.stanford.edu/pb075qv9758.
Collection
Metropolitan Transportation Commission GIS Maps & Data
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