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Where am ILOCATED

Idaho County, Idaho

Idaho County, Idaho, has 17,874 residents (July 2025 estimate). Its county seat is Grangeville. It uses Mountain Time and Pacific Time and covers 8,477 sq mi (21,957 km²) of land.

Boise CityMeridian
Idaho County in Idaho
Lewis CountyNez Perce CountyRavalli CountyWallowa CountyGrangevilleCottonwoodKooskiaRiggins
Idaho County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
17,874
Land area
8,477 sq mi (21,957 km²)
County seat or government
Grangeville
Time zone
Mountain Time, Pacific TimeUTC-07:00 in January; UTC-06:00 in July
Median household income
$66,325 ± $6,132
Median home value
$310,200 ± $19,976
Median rent, with utilities
$789 ± $124
Homes lived in by their owners
80.9% ± 2.6 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Lewiston, ID-WA metro area and Missoula, MT metro area
Water area
26.1 sq mi (67.5 km²)
State
Idaho
County code (FIPS)
16049
Coordinates (central point)
45.849644, -115.467337
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Idaho County

Time zoneLocal time and UTC offsetNext clock change
Mountain TimeAmerica/BoiseUTC-07:00 in January; UTC-06:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Idaho County straddles a time-zone line; check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 836387,750 people
  2. 835306,406 people
  3. 598476,015 people
  4. 835364,444 people
  5. 836113,329 people
  6. 835222,692 people
  7. 835392,427 people
  8. 836541,763 people
  9. 83552806 people
  10. 83549587 people
  11. 83554350 people
  12. 83525296 people
All 16
  1. 83526242 people
  2. 83547241 people
  3. 83542147 people
  4. 83533121 people

16 ZIP Code areas overlap Idaho County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Idaho County, largest first

  1. Mountain View School District 24410,563 people
  2. Kamiah Joint School District 3044,128 people
  3. Cottonwood Joint School District 2423,041 people
  4. Highland Joint School District 3051,492 people
  5. Salmon River School District 2431,372 people
  6. Nezperce Joint School District 302972 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Tribal areas in Idaho County, largest first

  1. Nez Perce Reservation19,038 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Grangeville, Idaho (city)3,515 people
  2. Cottonwood, Idaho (city)1,131 people
  3. Kamiah, Idaho (city)1,084 people
  4. Kooskia, Idaho (city)687 people
  5. Riggins, Idaho (city)263 people
  6. Elk City, Idaho (CDP)202 people
  7. Stites, Idaho (city)165 people
  8. Ferdinand, Idaho (city)162 people
  9. White Bird, Idaho (city)57 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Lewis County, Idaho53 mi northwest
  2. Clearwater County, Idaho58 mi north
  3. Ravalli County, Montana67 mi east
  4. Valley County, Idaho69 mi south
  5. Nez Perce County, Idaho70 mi northwest
  6. Adams County, Idaho83 mi southwest
  7. Wallowa County, Oregon85 mi west
  8. Lemhi County, Idaho100 mi southeast
  9. Missoula County, Montana111 mi northeast

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.