Idaho Geographic Information Systems Data

Data available from the Idaho Department of Water Resources conform to the Idaho state cartographic standard, which is Idaho Transverse Mercator, NAD83 (IDTM83). Both IDTM Projection Parameters and a discussion of IDTM are available.

Note: Errors in data are inevitable. While we do our best to produce good data, you may find a problem we overlooked. Please report any errors you find to

Most of the data is state-wide, so they are not appropriate for detailed, site-specific analysis.

The Idaho Department of Water Resources is maintaining this web site as a public service. The Idaho Department of Water Resources strives to ensure that all technical data and other information made available to the public through this web site is accurate, complete and in conformance with the Idaho Public Records Act. Neither the Department of Water Resources nor the State of Idaho, however, assumes any legal responsibility for the accuracy or completeness of the information contained on this site. Persons using information from this site for official purposes, or other purposes, for which accuracy and completeness are required, are hereby notified that they should first verify the information with the public records or other primary sources from which the information was obtained.

See a list of all the datasets and how they are organized in the Table of Contents.

Data Category Description
Administrative Boundaries IDWR, State, and Federal
Aquifers Generalized boundaries
Census 1990 and 2000 data
Cities Municipal boundaries, all cities, and major cities
Dairies Contact ISDA for current information
Dam Safety Contact National Inventory of Dams for current information
Digital Raster Graphics 1:24,000-scale, 1:100,000-scale, and 1:250,000-scale quads
Evapotranspiration Seasonal ET from the METRIC and the SEBAL ET models
Floodplain Management FEMA data
Gaging Stations USGS and State
Geology Generalized geology and aquifer lithology
Geographic Names The GNIS geographic names from USGS
Geothermal Geothermal springs; generalized resource areas
Groundwater ESPA Boundary, Monitoring Sites, and Recharge Locations
Hydrography Lakes and Rivers
IDWR Planning Basins River basins for which IDWR is generating comprehensive plans
IDWR Regulatory Areas Areas administered by IDWR under regulatory rules.
Irrigation Canal Companies and Irrigation Districts; related data
Land Cover - Vegetation Derived from Landsat and aerial photography
Precipitation Average annual and average monthly; vector and raster data sets
Public Land Survey USGS 1:100,000 DLG and the BLM's GCDB
Public Water Supply Municipal Service Area Boundaries
Quadrangle Boundaries 1:24,000-scale, 1:100,000-scale, and 1:250,000-scale
Remote Sensing Data Landsat satellite data and aerial photography
Soils STATSGO; soil surveys for 10 counties
Transportation State and local highways, roads, and streets
Water Rights Snake River Basin Adjudication claims and recommendations, and water right permits: places of use and points of diversion
Watersheds Hydrologic Units; 5th and 6th field statewide watersheds
Wells Permitted wells; Injection wells; Monitoring wells
Wetlands Idaho wetlands; National Wetland Inventory

Data for the Spokane Valley-Rathdrum Prairie Aquifer Project

Idaho Department of Environmental Quality

Interactive Mapping - Data available from the Department of Environmental Quality's
Interactive Map Server

Idaho Department of Lands

Statewide Data - Data available from the Idaho Department of Lands site

Idaho Department of Commerce

Statewide Data - Census Data Community, County, State Profiles, and Economic Statistics

Links to Other GIS Data

Sources for popular data not found above, search our additional links for GIS Data for Idaho data, Federal data, and data for surrounding states.