GIS - Geographic Information Systems: Data

Find geographic data and products such as the TIGER/Line Shapefiles, KMLs, TIGERweb, cartographic boundary files, geographic relationship files, and reference and thematic maps.

Esri provides a full spectrum of ready-to-use, high-quality geospatial data for your GIS visualization and analysis projects. Whether licensed from renowned, industry-leading providers or built with Esri's proven methodologies, we strive to deliver the most accurate and current data available.

The National Historical Geographic Information System (NHGIS) provides population, housing, agricultural, and economic data, along with GIS-compatible boundary files, for geographic units in the United States from 1790 to the present

This is an excellent portal to GIS data sources. Some sources may be limited to MIT affiliated users.

SEDAC has as its mission to develop and operate applications that support the integration of socioeconomic and earth science data and to serve as an "Information Gateway" between earth sciences and social sciences.

The National Transportation Atlas Database (NTAD) is a set of nationwide geographic databases of transportation facilities, transportation networks, and associated infrastructure. These datasets include spatial information for transportation modal networks and intermodal terminals, as well as the related attribute information for these features.

This website provides access to several EPA databases to provide you with information about environmental activities that may affect air, water, and land anywhere in the United States.

Federal agencies and their partners collect and manage large amounts of geospatial data - but these data are often not easily found when needed or accessible in useful forms. The Geospatial Platform provides ready access to federally maintained geospatial data, services and applications. The content of all datasets and services demarcated with the Data.gov globe have been verified by the Agency to be consistent with Federal privacy, national security, and information quality policies. As an additional service to our users, we also provide access to data from our partners across State, Tribal, Regional and local governments as well as non-governmental organizations.

The National Elevation Dataset (NED) is the primary elevation data product of the USGS. The NED is a seamless dataset with the best available raster elevation data of the conterminous United States, Alaska, Hawaii, and territorial islands.

The Mission of NOAA's National Geodetic Survey (NGS) is "to define, maintain and provide access to the National Spatial Reference System to meet our nation's economic, social, and environmental needs."

Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.

This site links to various state data centers recognized by the Census Bureau.

The U.S. Census Bureau has gathered information from other countries and compiled it into useable formats. Included on this page is the International Data Base (IDB), which has population pyramids and other source information.

The Minnesota Geospatial Commons is a collaborative place for users and publishers of geospatial resources about Minnesota. The term “geospatial resources” refers to the wide variety of data sources associated with particular geographic locations.

The Minnesota Geographic Data Clearinghouse is a starting point to find Minnesota geospatial data needed for Geographic Information Systems (GIS).

University of Minnesota Borchert Map Library GIS Data page

The City of Minneapolis seeks to provide increased access to public spatial geographic information systems (GIS) and non-spatial data that is regularly requested by private citizens and businesses.

Geographic Resources Analysis Support System, commonly referred to as GRASS GIS, is a Geographic Information System (GIS) used for data management, image processing, graphics production, spatial modelling, and visualization of many types of data.

GeoServer is an open source software server written in Java that allows users to share and edit geospatial data.