Mendocino County, California

Mendocino County, California, has 88,122 residents (July 2025 estimate). Its county seat is Ukiah. It uses Pacific Time and covers 3,507 sq mi (9,083 km²) of land.

Los AngelesSan DiegoSan Jose
Mendocino County in California
Glenn CountyLake CountyUkiahFort BraggWillitsRedwood Valley
Mendocino County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
88,122
Land area
3,507 sq mi (9,083 km²)
County seat or government
Ukiah
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$68,092 ± $3,254
Median home value
$512,200 ± $19,774
Median rent, with utilities
$1,317 ± $51
Homes lived in by their owners
61.7% ± 1.8 points
County type
County
Metro or micro area
Ukiah, CA micro areaCentral county
Water area
371 sq mi (962 km²)
State
California
County code (FIPS)
06045
Coordinates (central point)
39.432388, -123.442881

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 Mendocino County

Time zoneLocal time and UTC offsetNext clock change
Pacific TimeAmerica/Los_AngelesUTC-08:00 in January; UTC-07:00 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. 9548233,164 people
  2. 9543714,982 people
  3. 9549014,677 people
  4. 9542510,978 people
  5. 954706,226 people
  6. 954452,766 people
  7. 955422,463 people
  8. 954282,347 people
  9. 954602,199 people
  10. 954682,037 people
  11. 954491,763 people
  12. 954541,670 people
All 29
  1. 954691,315 people
  2. 955891,115 people
  3. 95415956 people
  4. 95456860 people
  5. 95410842 people
  6. 95459761 people
  7. 95466722 people
  8. 95432707 people
  9. 95427666 people
  10. 95585522 people
  11. 95420271 people
  12. 95488226 people
  13. 95417220 people
  14. 95494130 people
  15. 95429128 people
  16. 9546314 people
  17. 955870 people

29 ZIP Code areas overlap Mendocino 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

Mendocino 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 Mendocino County, largest first

  1. Ukiah Unified School District41,067 people
  2. Fort Bragg Unified School District14,979 people
  3. Willits Unified School District14,140 people
  4. Point Arena Joint Union High School District7,318 people
  5. Southern Humboldt Joint Unified School District6,212 people
  6. Mendocino Unified School District5,682 people
  7. Arena Union Elementary School District4,817 people
  8. Round Valley Unified School District2,475 people
  9. Anderson Valley Unified School District1,894 people
  10. Laytonville Unified School District1,890 people
  11. Potter Valley Community Unified School District1,863 people
  12. Manchester Union Elementary School District875 people
All 13
  1. Leggett Valley Unified School District528 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 Mendocino County, largest first

  1. Manchester-Point Arena Rancheria390 people
  2. Round Valley Reservation and Off-Reservation Trust Land298 people
  3. Redwood Valley Rancheria273 people
  4. Pinoleville Rancheria227 people
  5. Sherwood Valley Rancheria and Off-Reservation Trust Land205 people
  6. Coyote Valley Reservation191 people
  7. Laytonville Rancheria142 people
  8. Hopland Rancheria124 people
  9. Guidiville Rancheria and Off-Reservation Trust Land78 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. Ukiah, California (city)16,304 people
  2. Fort Bragg, California (city)7,032 people
  3. Willits, California (city)4,920 people
  4. Brooktrails, California (CDP)4,398 people
  5. Redwood Valley, California (CDP)1,898 people
  6. Covelo, California (CDP)1,286 people
  7. Talmage, California (CDP)1,128 people
  8. Hopland, California (CDP)983 people
  9. Point Arena, California (city)789 people
  10. Anchor Bay, California (CDP)771 people
  11. Laytonville, California (CDP)720 people
  12. Boonville, California (CDP)667 people
All 23
  1. Cleone, California (CDP)613 people
  2. Mendocino, California (CDP)574 people
  3. Calpella, California (CDP)474 people
  4. Potter Valley, California (CDP)436 people
  5. Caspar, California (CDP)279 people
  6. Albion, California (CDP)250 people
  7. Manchester, California (CDP)184 people
  8. Comptche, California (CDP)163 people
  9. Little River, California (CDP)94 people
  10. Philo, California (CDP)60 people
  11. Leggett, California (CDP)24 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Lake County, California44 mi southeast
  2. Glenn County, California57 mi east
  3. Sonoma County, California69 mi southeast
  4. Tehama County, California80 mi northeast
  5. Trinity County, California86 mi north
  6. Humboldt County, California92 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.

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.