State & County Maps of Idaho

Maps of Idaho are a great resource to help learn about a place at a particular point in time. Old Idaho maps are effective sources of geographical information and useful for historical, genealogical and territorial research.

Our collection of Idaho maps includes many different historic and modern types of maps. The maps date from the 19th century to the present and include:

State Map of Idaho with the counties and the county seats
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State Map of Idaho with the counties and the county seats
  • Idaho Township maps, including maps showing the progress of the original government surveys
  • Idaho Road, Highway and railroad maps
  • Idaho Maps showing the state’s geological features
  • Idaho timeline of county boundaries changes
  • Idaho Military maps
  • Idaho Maps of specific towns, counties and bodies of water
  • Territorial era maps of Idaho
  • Bird’s eye views of Idaho cities and towns

Historical Maps of Idaho are a great resource to help learn about a place at a particular point in time. Idaho Maps are vital historical evidence but must be interpreted cautiously and carefully.

Idaho Map Collections

The United States Geological Survey maps are available for Idaho. Major libraries in Idaho have been designated by the U.S. Geological Survey as map depository libraries. They include Boise State University in Boise, Albertsons LibraryUniversity of Idaho and Idaho State University.

Early Idaho atlas: Old gold mines, Indian battle grounds, old military roads, old forts, overland stage routes, early towns

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 is an excellent collection of early Idaho maps beginning with the 1804 Lewis and Clark trail map to a present-day map of the state.

The various Idaho maps detailing the history of Idaho are valuable for genealogical research as they show overland stage routes, old military roads, Indian battlegrounds, old forts, old mining areas, and early towns.

Old Historical Atlas Maps of Idaho

This Historical Idaho Map Collection are from original copies. Most historical maps of Idaho were published in atlases and spans over 150 years of growth for the state.

Some Idaho maps years have cities, railroads, P.O. locations, township outlines, and other features useful to the Idaho researcher.

Mitchell’s 1880 State, County and Township Map of Idaho

  • Map Title:  State and County Map of Idaho
  • Map Date: 1880 (Entered 1879)
  • Map Locations: Idaho
  • Map Description:
  • Map Notes:
  • Map Type: World Atlas
  • Map Cartographer: Samuel Augustus Mitchell Jr. (1827-1901)

Mitchell’s 1880 State and County Map of Oregon, Washington, Idaho, and part of Montana

  • Map Title:  State and County Map of Oregon, Washington, Idaho, and part of Montana
  • Map Date: 1880 (Entered 1879)
  • Map Locations: Oregon, Washington, Idaho, and part of Montana
  • Map Description:
  • Map Notes:
  • Map Type: World Atlas
  • Map Cartographer: Samuel Augustus Mitchell Jr. (1827-1901)

Map of Idaho County Formations 1848-1965

This Interactive Map of Idaho Counties show the historical boundaries, names, organization, and attachments of every county, extinct county and unsuccessful county proposal from the creation of the Idaho territory in 1848 to 1965.

Idaho County Maps of Road and Highway’s

The Idaho Transportation Department does not have Idaho County Maps available at this time.

External Idaho Map Resources

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