Valley County, Idaho
Valley County, Idaho, has 12,831 residents (July 2025 estimate). Its county seat is Cascade. It uses Mountain Time and covers 3,665 sq mi (9,493 km²) of land.
- Resident population, July 2025
- 12,831
- Land area
- 3,665 sq mi (9,493 km²)
- County seat or government
- Cascade
- Time zone
- Mountain TimeUTC-07:00 in January; UTC-06:00 in July
- Median household income
- $76,078 ± $7,816
- Median home value
- $657,000 ± $63,503
- Median rent, with utilities
- $1,117 ± $110
- Homes lived in by their owners
- 81.9% ± 5.7 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Boise City, ID metro area
- Water area
- 68.4 sq mi (177 km²)
- State
- Idaho
- County code (FIPS)
- 16085
- Coordinates (central point)
- 44.855960, -115.618061
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 Valley 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
5 ZIP Code areas overlap Valley 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 Valley County, largest first
- McCall-Donnelly Joint School District 4219,491 people
- Cascade School District 4223,032 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.
- McCall, Idaho (city)3,946 people
- Cascade, Idaho (city)1,118 people
- Donnelly, Idaho (city)195 people
- Smiths Ferry, Idaho (CDP)66 people
- Yellow Pine, Idaho (CDP)17 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Adams County, Idaho41 mi west
- Boise County, Idaho60 mi south
- Gem County, Idaho67 mi southwest
- Idaho County, Idaho69 mi north
- Custer County, Idaho78 mi southeast
- Lemhi County, Idaho85 mi east
Before using this answer on a form
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