Statistics & Data: Spatial Data

Data generated by the federal government.

"Provides maps and data for ArcGIS users and the capability to find and share geographic information. The free ArcGIS Online Web application makes it easy to find content published by ESRI, ArcGIS users, and other authoritative data providers as well as upload and share content of your own."

Provides, free of charge, aggregate census data and GIS-compatible boundary files for the United States 1790 to present.

Provide access to spatial data as well as an Interactive Atlas and a list of existing maps that are available from SCAG publications or have been created for other planning activities.

The California State Geoportal is a centralized geographic open data portal, which includes authoritative data and applications from a multitude of California state entities. The portal runs on the ESRI ArcGIS Online Hub platform, which provides many tools to access and view data and maps. It also enables users to tap into the broader ESRI ArcGIS Online suite of tools, either with a free public account or with a paid subscription account.

Library research guide for spatial data and related resources.