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Where am ILOCATED

Lassen County, California

Lassen County, California, has 28,117 residents (July 2025 estimate). Its county seat is Susanville. It uses Pacific Time and covers 4,541 sq mi (11,762 km²) of land.

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Lassen County in California
Plumas CountyShasta CountyWashoe CountySusanvilleJanesvilleWestwoodDoyle
Lassen County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
28,117
Land area
4,541 sq mi (11,762 km²)
County seat or government
Susanville
Time zone
Pacific TimeUTC-08:00 in January; UTC-07:00 in July
Median household income
$67,403 ± $3,407
Median home value
$265,300 ± $12,020
Median rent, with utilities
$1,000 ± $100
Homes lived in by their owners
68.2% ± 3.1 points
County type
County
Metro or micro area
Susanville, CA micro areaCentral county
Water area
179 sq mi (463 km²)
State
California
County code (FIPS)
06035
Coordinates (central point)
40.715287, -120.621223
Open this point in the location finder

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 Lassen 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. 9613020,173 people
  2. 961142,959 people
  3. 961372,923 people
  4. 961132,039 people
  5. 960561,584 people
  6. 961091,299 people
  7. 96105799 people
  8. 96128656 people
  9. 96006512 people
  10. 96009307 people
  11. 96117261 people
  12. 96121217 people
All 18
  1. 9606894 people
  2. 9611065 people
  3. 9612345 people
  4. 9613627 people
  5. 9613221 people
  6. 961196 people

18 ZIP Code areas overlap Lassen 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

Lassen 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 Lassen County, largest first

  1. Lassen Union High School District24,368 people
  2. Susanville Elementary School District11,664 people
  3. Fall River Joint Unified School District7,066 people
  4. Shaffer Union Elementary School District6,955 people
  5. Modoc Joint Unified School District5,866 people
  6. Fort Sage Unified School District3,414 people
  7. Janesville Union Elementary School District3,197 people
  8. Westwood Unified School District1,420 people
  9. Johnstonville Elementary School District1,253 people
  10. Richmond Elementary School District1,233 people
  11. Big Valley Joint Unified School District1,189 people
  12. Surprise Valley Joint Unified School District1,096 people
All 13
  1. Ravendale-Termo Elementary School District66 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 Lassen County, largest first

  1. Susanville Indian Rancheria and Off-Reservation Trust Land591 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. Susanville, California (city)14,177 people
  2. Janesville, California (CDP)2,399 people
  3. Westwood, California (CDP)1,063 people
  4. Johnstonville, California (CDP)1,039 people
  5. Doyle, California (CDP)779 people
  6. Patton Village, California (CDP)473 people
  7. Spaulding, California (CDP)369 people
  8. Bieber, California (CDP)266 people
  9. Herlong, California (CDP)211 people
  10. Clear Creek, California (CDP)172 people
  11. Stones Landing, California (CDP)85 people
  12. Litchfield, California (CDP)65 people
All 16
  1. Little Valley, California (CDP)60 people
  2. Nubieber, California (CDP)7 people
  3. Madeline, California (CDP)0 people
  4. Milford, California (CDP)0 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Washoe County, Nevada50 mi east
  2. Plumas County, California51 mi south
  3. Modoc County, California61 mi north
  4. Shasta County, California75 mi west
  5. Sierra County, California79 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.

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.