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Urban,Suburban and Rural designations by grid

Download the shapefile here: Urban Suburban Rural (zipped shapefile).

This layer was developed by the Fire Department to use in our annual reporting to the state. We must report total incidents by Urban,Suburban, and Rural. Using the State of California formula for urban,suburban was found to be not applicable to Los Angeles County. The [...]

California Spatial Information Library (CaSIL)

The Cal-Atlas site facilitates the coordinated and sustainable development, maintenance, licensing and sharing of geospatial data and web map services by California government agencies, partners and stakeholders. California government agencies work with the California GIS Council, regional GIS collaboratives and the broader California GIS community to define the data architecture, systems, standards, agreements and processes [...]

Census Data and Boundaries (Historic)

NHGIS Site

The National Historical Geographic Information System (NHGIS) website recently is an incredibly valuable tool for historic demographics information. You just need to register.

From their site:

The National Historical Geographic Information System (NHGIS) provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States [...]

Census Blocks (2010)

Census Geography Background

The Census Bureau (http://www.census.gov/) maintains geographic boundaries for the analysis and mapping of demographic information across the United States. Every 10 years the Census Bureau counts the population of the United States as mandated by Constitution. The Census Bureau releases the results of this county as demographic data [...]

Census Tracts (2010)

Census Geography Background

The Census Bureau (http://www.census.gov/) maintains geographic boundaries for the analysis and mapping of demographic information across the United States. Every 10 years the Census Bureau counts the population of the United States as mandated by Constitution. The Census Bureau releases the results of this county as demographic data with [...]

L.A. County Statistical Areas

Statistical Areas 2000

The Statistical Areas dataset contains Statistical Areas from the LA County Department of Regional Planning (DRP). Statistical Areas are communities that can be grouped together to show areas of geographical connection in the county. To do this use the STAT_D field. Similar areas have the same first few [...]

Census Cartographic Boundary Files

We do not have this data; but since we get a lot of requests for census tracts or other census data for our County, it seems logical to have a link here.  This data is available from the US Census Bureau.  2010 data is not yet available.

Here’s the link to their download page: