Lassen County, California
Lassen County is a county in California. Its county FIPS code is 06035. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 06035
- Representative coordinates
- 40.715287, -120.621223
- County type
- County
- County seat or government
- Susanville
- Resident population, July 2025
- 28,117
- Land area
- 11,762.091 km²
- Water area
- 462.951 km²
- State
- California
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Lassen County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/Los_Angeles | UTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
96006 · 96009 · 96056 · 96068 · 96105 · 96109 · 96110 · 96113 · 96114 · 96117 · 96119 · 96121 · 96123 · 96128 · 96130 · 96132 · 96136 · 96137
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details 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.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
Areas sharing the mapped boundary
These areas touch this mapped boundary.
Before using this answer on a form
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Find the county at your current point, check its ZIP area, or find its physical time zone.