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Idaho County Map

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PHYSICAL MAP

Idaho Topographic County Map

Idaho’s topography is full of deep river canyons, rugged mountain ranges, and wide plains. This map shows how elevation shifts across the state’s counties.

Idaho Topographic County Map
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SATELLITE IMAGERY

Idaho Satellite County Map

In our satellite map, Idaho shows off its mix of forest, farmland, and rocky wilderness. The satellite imagery highlights land features in every county.

Idaho Satellite County Map
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OUTLINE MAP

Idaho Simple County Map

This straightforward map outlines Idaho’s counties with clean boundaries and labels. It’s just the essentials, clearly displayed.

Idaho Simple County Map
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Idaho Counties

What’s the most populated county in Idaho? Ada County takes the population crown, and it’s no surprise why. Boise, the state capital, calls it home. On the flip side, there’s Clark County. Barely 800 folks call it home, making it Idaho’s least populous county. It’s a place where nature rules.

Most Populous: Ada County
Least Populous: Clark County

Idaho Map United States

When it comes to size, Idaho County is the biggest. It’s massive, covering over 8,500 square miles. A good chunk of it is taken up by the Nez Perce-Clearwater National Forests. The smallest county is Payette County. It’s just barely over 400 square miles in area.

Largest Area: Idaho County
Smallest Area: Payette County

Idaho’s counties have some stories behind their names. Take Nez Perce County, named after the Native American tribe. Or Kootenai County, which comes from a word meaning “water people.” The state’s first county, Boise County, was established way back in 1863, right after Idaho became a territory.

Idaho County List

Find out key details with our table of Idaho’s 44 counties:

FIPS CodeNameLand %Water %Total Area (sq mi)
16-001Ada County99.20.81,060.6
16-003Adams County99.50.51,369.5
16-005Bannock County96.93.11,148.0
16-007Bear Lake County93.07.01,049.6
16-009Benewah County99.10.9784.2
16-011Bingham County98.81.22,120.2
16-013Blaine County99.40.62,655.0
16-015Boise County99.60.41,906.9
16-017Bonner County90.49.61,918.1
16-019Bonneville County98.21.81,900.3
16-021Boundary County99.30.71,278.0
16-023Butte County99.90.12,238.5
16-025Camas County99.60.41,078.7
16-027Canyon County97.22.8603.7
16-029Caribou County98.11.91,798.6
16-031Cassia County99.40.62,580.7
16-033Clark County99.90.11,764.1
16-035Clearwater County98.81.22,488.0
16-037Custer County99.70.34,938.6
16-039Elmore County99.10.93,101.4
16-041Franklin County99.30.7667.7
16-043Fremont County98.31.71,896.2
16-045Gem County99.10.9564.6
16-047Gooding County99.30.7734.1
16-049Idaho County99.70.38,503.5
16-051Jefferson County98.91.11,105.7
16-053Jerome County99.20.8602.5
16-055Kootenai County94.65.41,309.0
16-057Latah County99.90.11,076.8
16-059Lemhi County99.90.14,569.1
16-061Lewis County99.80.2479.7
16-063Lincoln County99.60.41,205.8
16-065Madison County99.10.9473.3
16-067Minidoka County99.30.7762.4
16-069Nez Perce County99.01.0856.5
16-071Oneida County99.90.11,200.5
16-073Owyhee County99.60.47,696.8
16-075Payette County99.20.8410.3
16-077Power County97.32.71,442.1
16-079Shoshone County99.80.22,642.8
16-081Teton County99.80.2450.2
16-083Twin Falls County99.60.41,928.7
16-085Valley County98.21.83,733.5
16-087Washington County98.61.41,473.4

Source: United States Census Bureau

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