Butte County, Idaho
Butte County, Idaho, has 2,783 residents (July 2025 estimate). Its county seat is Arco. It uses Mountain Time and covers 2,236 sq mi (5,792 km²) of land.
- Resident population, July 2025
- 2,783
- Land area
- 2,236 sq mi (5,792 km²)
- County seat or government
- Arco
- Time zone
- Mountain TimeUTC-07:00 in January; UTC-06:00 in July
- Median household income
- $53,015 ± $9,674
- Median home value
- $217,600 ± $17,421
- Median rent, with utilities
- $608 ± $147
- Homes lived in by their owners
- 77.5% ± 7.1 points
- County type
- County
- Metro or micro area
- Idaho Falls, ID metro areaOutlying county
- Water area
- 2.03 sq mi (5.26 km²)
- State
- Idaho
- County code (FIPS)
- 16023
- Coordinates (central point)
- 43.685101, -113.177631
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 Butte County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Mountain TimeAmerica/Boise | UTC-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
3 ZIP Code areas overlap Butte 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 Butte County, largest first
- Butte County Joint School District 1112,596 people
- Mackay Joint School District 1821,804 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.
- Arco, Idaho (city)850 people
- Moore, Idaho (city)228 people
- Butte City, Idaho (city)95 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Jefferson County, Idaho44 mi east
- Blaine County, Idaho44 mi southwest
- Bingham County, Idaho51 mi southeast
- Clark County, Idaho58 mi northeast
- Custer County, Idaho67 mi northwest
- Lemhi County, Idaho93 mi north
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.