How this list was compiled: Items made on 2026-09-26; names, ids and accepted spellings are Natural Earth's. Licence: public domain (work of the United States government, 17 U.S.C. 105): https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2023/TGRSHP2023_TechDoc_Ch1.pdf; public domain (Natural Earth terms of use: https://www.naturalearthdata.com/about/terms-of-use/)
The drawing: Drawn for this site from U.S. Census Bureau 2023 cartographic boundary file cb_2023_us_county_5m (scale 1:5,000,000), https://www2.census.gov/geo/tiger/GENZ2023/shp/cb_2023_us_county_5m.zip, downloaded 2026-09-19. Surrounding land from U.S. Census Bureau 2023 cartographic boundary file cb_2023_us_state_5m (scale 1:5,000,000), https://www2.census.gov/geo/tiger/GENZ2023/shp/cb_2023_us_state_5m.zip, downloaded 2026-09-19 and from Natural Earth 5.1.2, ne_10m_admin_0_countries_lakes (scale 1:10,000,000), https://raw.githubusercontent.com/nvkelso/natural-earth-vector/v5.1.2/geojson/ne_10m_admin_0_countries_lakes.geojson, downloaded 2026-09-19. Albers equal-area conic projection, central meridian 114.7°W, standard parallels 43.2°N and 47.8°N. Outlines simplified; small islands are left out. Licence: public domain (work of the United States government, 17 U.S.C. 105): https://www2.census.gov/geo/pdfs/maps-data/data/tiger/tgrshp2023/TGRSHP2023_TechDoc_Ch1.pdf; public domain (Natural Earth terms of use: https://www.naturalearthdata.com/about/terms-of-use/)
How it works
This blank map of Idaho shows all 44 counties of Idaho, from Ada to Washington, with Boise, the capital, in Ada County; with Borders off it prints the plain outline.
Read the full guide
Blank, numbered or named
Blank prints the 44 shapes with nothing written; Numbered puts 1 on Ada and 44 on Washington, in alphabetical order; Named prints every name, and Print the answer key gives the list.
Idaho on the map
Idaho County, which shares its name with the state, is the largest county, stretching across the narrow middle of the state. Its neighbors, Washington, Oregon, Nevada, Utah, Wyoming, Montana and Canada, are drawn around it without numbers.
The Panhandle in the north is only about 45 miles wide at the Canadian border; start there and work south.
Questions and answers
How many counties does Idaho have?
Forty-four in the Census Bureau count, from Ada County to Washington County in alphabetical order.
What county is Boise in?
Boise stands in Ada County, which is number 1 on the numbered sheet. Have students find it first and write Boise beside it.
Which is the largest county in Idaho?
Idaho County, in the north-central part of the state, bigger than the state of Connecticut.
Which county of Idaho has the most people?
Ada County, around Boise, has more people than any other county in Idaho, and it holds the capital too.