Canyon County, Idaho
Canyon County, Idaho, has 275,123 residents (July 2025 estimate). Its county seat is Caldwell. It uses Mountain Time and covers 587 sq mi (1,520 km²) of land.
- Resident population, July 2025
- 275,123
- Land area
- 587 sq mi (1,520 km²)
- County seat or government
- Caldwell
- Time zone
- Mountain TimeUTC-07:00 in January; UTC-06:00 in July
- Median household income
- $76,488 ± $1,853
- Median home value
- $390,000 ± $4,957
- Median rent, with utilities
- $1,347 ± $33
- Homes lived in by their owners
- 75.5% ± 1.2 points
- County type
- County
- Metro or micro area
- Boise City, ID metro areaOutlying county
- Water area
- 16.6 sq mi (43.1 km²)
- State
- Idaho
- County code (FIPS)
- 16027
- Coordinates (central point)
- 43.625795, -116.709058
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 Canyon 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
- 8368660,993 people
- 8368743,135 people
- 8360541,325 people
- 8365138,121 people
- 8363436,286 people
- 8360735,491 people
- 8366916,827 people
- 8364416,293 people
- 836606,434 people
- 836765,105 people
- 836414,061 people
- 836261,935 people
All 13
- 83656560 people
13 ZIP Code areas overlap Canyon 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
Canyon County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Canyon County, largest first
- Meridian Joint School District 2271,490 people
- Nampa School District 131105,058 people
- Vallivue School District 13965,429 people
- Kuna Joint School District 338,009 people
- Caldwell School District 13236,871 people
- Middleton School District 13423,922 people
- Homedale Joint School District 3706,166 people
- Marsing Joint School District 3635,863 people
- Parma School District 1375,490 people
- Wilder School District 1333,882 people
- Melba Joint School District 1363,354 people
- Notus School District 1352,129 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.
- Nampa, Idaho (city)110,319 people
- Caldwell, Idaho (city)66,516 people
- Star, Idaho (city)14,745 people
- Middleton, Idaho (city)10,649 people
- Wilder, Idaho (city)2,074 people
- Parma, Idaho (city)1,928 people
- Greenleaf, Idaho (city)1,482 people
- Melba, Idaho (city)617 people
- Notus, Idaho (city)573 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Payette County, Idaho26 mi north
- Ada County, Idaho26 mi southeast
- Gem County, Idaho34 mi northeast
- Malheur County, Oregon54 mi southwest
- Owyhee County, Idaho77 mi south
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.
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