Lassen County, CA ZIP codes
There are 17 ZIP codes in Lassen County, CA, in 16 towns, from 96006 to 96137. The largest are 96130 (Susanville), 96114 (Janesville) and 96137 (Westwood).
The county seat is Susanville.
- ZIP codes
- 17
- Towns
- 16
- County seat
- Susanville
- County FIPS
06035- State
- California
- Population
- 30,356
- Median household income
- $67,403
- Land area
- 4,541 sq mi
- Metro area
- Susanville
Lassen County ZIP codes by town
- Susanville (county seat)
- 96127, 96130
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Lassen County ZIP codes
The ZIP codes of Lassen County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Lassen County in numbers
About 30,356 people live in Lassen County, in 9,247 households, the 47th most populous of California's 58 counties. The median household income is $67,403 a year, 32% below the California median of $99,122 (US: $80,734). The median owner-occupied home is valued at $265,300 (64% below the California median), and median gross rent is $1,000 a month. The median age is 38.3; 13.1% of adults 25 and over hold a bachelor's degree or higher (37.1% across California); the average commute takes 20 minutes.
| Population | 30,356 |
|---|---|
| Households | 9,247 |
| Median age | 38.3 |
| Median household income | $67,403 |
| Median home value | $265,300 |
| Median gross rent | $1,000 |
| Bachelor's degree or higher | 13.1% |
| Mean commute | 19.5 min |
| Population density | 7 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Lassen County
| Town | ZIP codes | Population |
|---|---|---|
| Susanville | 2 | 14,177 |
| Janesville | 1 | 2,399 |
| Westwood | 1 | 1,063 |
| Doyle | 1 | 779 |
| Standish | 1 | 656 |
| Mcarthur | 1 | 346 |
| Bieber | 1 | 266 |
| Milford | 1 | 217 |
| Herlong | 1 | 211 |
| Adin | 1 | 153 |
| Litchfield | 1 | 65 |
| Ravendale | 1 | 45 |
| Wendel | 1 | 27 |
| Termo | 1 | 21 |
| Nubieber | 1 | 7 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Lassen County.
Not sure you are in Lassen County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Lassen County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
96006 | Adin , CA | Standard | 512 | $46,094 | $300,000 |
96009 | Bieber , CA | Standard | 307 | — | $155,600 |
96056 | Mcarthur , CA | Standard | 1,584 | $61,442 | $375,600 |
96068 | Nubieber , CA | Standard | 94 | — | — |
96109 | Doyle , CA | Standard | 1,299 | $43,988 | $259,900 |
96113 | Herlong , CA | Standard | 2,039 | $67,083 | $73,900 |
96114 | Janesville , CA | Standard | 2,959 | $79,688 | $338,600 |
96117 | Litchfield , CA | Standard | 261 | $104,583 | $305,000 |
96119 | Madeline , CA | Standard | 6 | — | — |
96121 | Milford , CA | Standard | 217 | $58,021 | $284,100 |
96123 | Ravendale , CA | Standard | 45 | $41,563 | — |
96127 | Susanville , CA | No street area | — | — | — |
96128 | Standish , CA | Standard | 656 | $91,012 | $394,000 |
96130 | Susanville , CA | Standard | 20,173 | $72,465 | $256,000 |
96132 | Termo , CA | Standard | 21 | $68,472 | $427,800 |
96136 | Wendel , CA | Standard | 27 | — | — |
96137 | Westwood , CA | Standard | 2,923 | $65,896 | $414,900 |
Cite this page
zipcodes.pro. “Lassen County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ca/county/lassen
Underlying data is public domain or openly licensed — sources, vintages and licences.