Lassen County is located in the northeastern part of the state of California, United States, bordering Nevada. The county includes cities, towns, rural communities, mountain valleys, and natural forest areas. ZIP codes in Lassen County range from 96105 to 96157 and are administered by the United States Postal Service (USPS) to support accurate mail delivery, address lookup, and local administration across cities, towns, and rural areas throughout the county.
Key Information About Lassen County ZIP Codes
| Item | Details |
|---|---|
| County | Lassen County |
| State | California |
| ZIP Code Range | 96105 – 96157 |
| County Seat | Susanville |
| Largest City | Susanville |
| Country | United States |
| Continent | North America |
| Postal Authority | United States Postal Service (USPS) |
ZIP Codes of Lassen County by City & Community
For more details on ZIP codes in Lassen County, see the tables of cities, towns, communities, and notable neighborhoods below.
Susanville & Surrounding Area (96130 – 96133)
| Place / Location | ZIP Code | State |
|---|---|---|
| Susanville Central | 96130 | California |
| Susanville North | 96130 | California |
| Susanville South | 96130 | California |
| Susanville East | 96133 | California |
| Susanville West | 96133 | California |
| Litchfield (near Susanville) | 96130 | California |
| Janesville (Susanville outskirts) | 96133 | California |
| Honey Lake Area | 96130 | California |
| Clear Creek | 96130 | California |
| Westwood (Susanville vicinity) | 96137 | California |
Westwood, Johnstonville & Northeastern Area (96137 – 96140 – 96114)
| Place / Location | ZIP Code | State |
|---|---|---|
| Westwood | 96137 | California |
| Johnstonville | 96140 | California |
| Lava Beds Area | 96140 | California |
| Constantia | 96114 | California |
| Constantia North | 96114 | California |
| Constantia South | 96114 | California |
| Claraville | 96114 | California |
| Gold Run (forest area) | 96137 | California |
| Westwood Heights | 96137 | California |
Herlong, Doyle & Eastern County Area (96113 – 96121 – 96125)
| Place / Location | ZIP Code | State |
|---|---|---|
| Herlong Central | 96113 | California |
| Herlong East | 96113 | California |
| Herlong West | 96113 | California |
| Doyle | 96121 | California |
| Doyle North | 96121 | California |
| Doyle South | 96121 | California |
| Litchfield Junction | 96125 | California |
| Litchfield Rural | 96125 | California |
| Oakland Road Area | 96125 | California |
Loyalton & Western Sierra Area (96118 – 96126 – 96128)
| Place / Location | ZIP Code | State |
|---|---|---|
| Loyalton | 96118 | California |
| Loyalton North | 96118 | California |
| Loyalton South | 96118 | California |
| Vinton | 96128 | California |
| Crannell | 96126 | California |
| Crannell East | 96126 | California |
| Loyalton Heights | 96118 | California |
| Western Foothill Area | 96126 | California |
| Loyalton Ridge | 96118 | California |
Lassen County includes other rural neighborhoods, forested backroads communities, ranch areas, and valley settlements that fall within the ZIP codes listed above. These places use USPS delivery routes tied to the main cities and towns of Susanville, Westwood, Herlong, Doyle, and Loyalton for mail delivery and address identification.
About Lassen County ZIP Code
ZIP codes in Lassen County help organize mail delivery across cities, towns, rural neighborhoods, and natural landscapes. The county seat and largest city, Susanville, uses the primary ZIP codes that cover most urban and surrounding residential areas. Smaller towns such as Westwood, Herlong, Doyle, and Loyalton each have unique ZIP codes that also serve nearby rural areas.
Using the correct ZIP code helps mail and packages arrive on time. ZIP codes also support deliveries, emergency response, and accurate address searches throughout Lassen County.