Sierra County is located in the northern Sierra Nevada region of the state of California, United States. The county includes small towns, historic mining communities, rural valleys, forested ridges, and mountain areas. ZIP codes in Sierra County range from 95953 to 95988 and are administered by the United States Postal Service (USPS) to support accurate mail delivery, address lookup, and local administration across cities, towns, and communities throughout the county.
Key Information About Sierra County ZIP Codes
| Item | Details |
|---|---|
| County | Sierra County |
| State | California |
| ZIP Code Range | 95953 – 95988 |
| County Seat | Downieville |
| Largest Community | Loyalton |
| Country | United States |
| Continent | North America |
| Postal Authority | United States Postal Service (USPS) |
ZIP Codes of Sierra County by City & Community
For more details on ZIP codes in Sierra County, see the tables of cities, towns, communities, and notable neighborhoods below.
Loyalton & Northern Sierra Area (96118 – 96126 – 96128)
| Place / Location | ZIP Code | State |
|---|---|---|
| Loyalton Central | 96118 | California |
| Loyalton North | 96118 | California |
| Loyalton South | 96118 | California |
| Vinton | 96128 | California |
| Crannell | 96126 | California |
| Crannell Hollow | 96126 | California |
| Loyalton East | 96118 | California |
| Loyalton West | 96118 | California |
| Sierra Brooks | 96118 | California |
Downieville, Sierra City & Western Mountain Area (95936 – 95955 – 95953)
| Place / Location | ZIP Code | State |
|---|---|---|
| Downieville | 95936 | California |
| Downieville East | 95936 | California |
| Downieville West | 95936 | California |
| Sierra City | 95977 | California |
| Sierra City North | 95977 | California |
| Sierra City South | 95977 | California |
| Calpine | 96124 | California |
| Goodyears Bar (Downieville vicinity) | 95936 | California |
| Jamison City (historic area) | 95936 | California |
| Alleghany (near Sierra City) | 95911 | California |
Sierraville & Eastern Valley Area (96126 – 96124)
| Place / Location | ZIP Code | State |
|---|---|---|
| Sierraville | 96126 | California |
| Sierraville North | 96126 | California |
| Sierraville South | 96126 | California |
| Sierraville East | 96126 | California |
| Sierraville West | 96126 | California |
| Prosser Creek Area (near Sierraville) | 96126 | California |
| Serene Lakes Area | 96140 | California |
Calpine & Eastern Sierra Foothills (96124)
| Place / Location | ZIP Code | State |
|---|---|---|
| Calpine Central | 96124 | California |
| Calpine North | 96124 | California |
| Calpine South | 96124 | California |
| Calpine East | 96124 | California |
| Calpine West | 96124 | California |
| East Yuba Canyon Area | 96124 | California |
Sierra County includes additional rural neighborhoods, mountain ranch areas, historic mining camps, and forested creek valleys that fall within the ZIP codes listed above. These locations use USPS delivery routes associated with the main towns of Loyalton, Downieville, Sierra City, Sierraville, and Calpine for mail delivery and location identification.
About Sierra County ZIP Codes
Each ZIP code in Sierra County covers one or more towns or rural communities. Loyalton is the largest population center, followed by smaller historic and mountain communities like Downieville, Sierra City, Sierraville, and Calpine.
ZIP codes help organize and speed up mail delivery across cities, towns, and rural parts of the county. They also support deliveries, emergency services, address searches, and geographic navigation throughout Sierra County.