Looking for GIS data, software, interactive maps, and traditional static maps? Use the tabs above to find links to various sources at the local, state, national, and international levels.
Trinity University has an ESRI educational site license, and ArcGIS 10.3.1 is installed on all library and lab computers. Student personal licenses are available upon request. ArcGIS Online, ESRI's cloud-based GIS service, is also part of the Trinity site license, with limited availability for classroom and research applications.
If you have any questions about spatial information sources or would like to see a resource added to this page, please contact Jeremy Donald
GIS Online Data (Texas A&M)
Local, Texas cities, counties, and state-level data discovery tool.
GIS Data Depot
"Numerous data holdings available for free download" from The GeoCommunity™
Stanford University's webpage for digital GIS data.
GeoData.gov U.S. Maps and Data
"Your one stop for Federal, state, and local geographic data." Includes feature topics (i.e., Fire Mapping) and a map viewer.
National Spatial Data Clearinghouse
Searchable collection of over 250 spatial data servers, that have digital geographic data primarily for use in Geographic Information Systems.
USGS Earth Resources Observation & Science (EROS)
"A leading source of land information for exploring our changing planet."
GIS Data Finder
From UNC Chapel Hill, "a large collection of data sets, each of which is made up of potentially many individual data layers. The GIS Data Finder allows our patrons to browse our collection in several ways."
Alamo Area Geospatial Committee Open Data Repository
A fantastic source for various San Antonio-area data sources, including City of San Antonio, TX-DOT, Bexar County, and local Census and political boundaries. "A regional consortium of geospatial service providers whose purpose is providing strategic direction in facilitating or addressing geospatial services and projects, coordinating technical standards, and administering fiscal resources."
standard geographies (down to the Census block group level), hand-drawn shapes, or rings or drive times around a location.
Esri Business Analyst combines demographic and business data, detailed maps, and advanced spatial analytics with your own data to help you answer the "where" questions. Data includes consumer spending, market potential, traffic data, and business locations. Produces maps and reports.
*Requires special link to access via Trinity's site license. Please email email@example.com to request access.
A spatial data discovery tool from Stanford University Libraries, this searches across the spatial data repositories of 9 major research institutions, including Harvard, Tufts, Columbia University, and University of Minnesota.
A library-subscribed database which maps a broad variety of socio-economic and community data down to Census tracts and block groups. Created by The Reinvestment Fund, a community revitalization organization, this source includes health, economic, food, home sales, and transportation data along with Census and American Community Survey data.
ESRI Data DVDs
Census 2000 TIGER/Line Data
From ESRI: "GIS users can download Census 2000 TIGER/Line Data in shapefile format for an area of interest. Users can choose multiple data layers for a single county or a single data layer for multiple counties and analyze them using GIS software such as ArcGIS." A good place to get shapefiles of census data associated with Bexar Co. geographies, e.g., "race and ethnicity data at the block level."
City of San Antonio Interactive Maps & Downloads:
A great source of shapefiles from federal sources. Use the data.gov and geodata tabs to search for spatial datasets, then drag them into the text box at the top to preview them in a map viewer.
GPSVisualizer Site will generate XY data from a tab-delimited address list, show points on a map, and create spreadsheet ofr use with a GIS or a kml file for use in Google Earth.