Blaine County, Idaho

Blaine County, Idaho, has 25,517 residents (July 2025 estimate). Its county seat is Hailey. It uses Mountain Time and covers 2,638 sq mi (6,832 km²) of land.

Boise CityNampa
Blaine County in Idaho
Bingham CountyButte CountyCamas CountyElmore CountyLincoln CountyMinidoka CountyPower CountyKetchumCarey
Blaine County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
25,517
Land area
2,638 sq mi (6,832 km²)
County seat or government
Hailey
Time zone
Mountain TimeUTC-07:00 in January; UTC-06:00 in July
Median household income
$92,566 ± $6,339
Median home value
$735,300 ± $68,817
Median rent, with utilities
$1,338 ± $227
Homes lived in by their owners
73.5% ± 3.2 points
County type
County
Metro or micro area
Hailey, ID micro areaCentral county
Water area
17.2 sq mi (44.7 km²)
State
Idaho
County code (FIPS)
16013
Coordinates (central point)
43.394192, -113.955371

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 Blaine 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.

Near 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. 8333312,682 people
  2. 8335012,671 people
  3. 833405,325 people
  4. 833133,692 people
  5. 833523,317 people
  6. 833201,600 people
  7. 833531,450 people
  8. 83348124 people
  9. 8335410 people

9 ZIP Code areas overlap Blaine 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 Blaine County, largest first

  1. Blaine County School District 6124,951 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.

Cities, towns and communities, largest first

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

  1. Hailey, Idaho (city)9,665 people
  2. Ketchum, Idaho (city)3,594 people
  3. Bellevue, Idaho (city)2,588 people
  4. Sun Valley, Idaho (city)1,460 people
  5. Carey, Idaho (city)1,196 people
  6. Gannett, Idaho (CDP)284 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Lincoln County, Idaho30 mi south
  2. Minidoka County, Idaho40 mi southeast
  3. Camas County, Idaho42 mi west
  4. Butte County, Idaho44 mi northeast
  5. Custer County, Idaho63 mi north
  6. Power County, Idaho74 mi southeast
  7. Elmore County, Idaho76 mi west
  8. Cassia County, Idaho79 mi south
  9. Bingham County, Idaho79 mi east

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.