Written and fact-checked by Mukesh Kumar | Last Updated: October 28,2026 | 14:35 ET
Map of Lassen County - Lassen County is a county located in the U.S. state of California. Lassen County Map showing cities, highways, important places and water bodies. Get Where is Lassen County located in the map, major cities in Lassen county, population, areas, and places of interest.
Lassen County Map, California
About Lassen County Map, California: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.
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About Lassen County, California
Lassen County is a county located in the northeastern part of the state of California in the United States. Its county seat is Susanville. The county is known for its natural beauty, including Lassen Volcanic National Park and a variety of outdoor recreational opportunities.
Lassen County is a county located in the U.S. state of California. It's county seat is Susanville. As per 2020 census, the population of Lassen County is 33159 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 4,558 sq mi (11,805 km2). Lassen County was established on 1864.
Susanville is the largest community in Lassen County and serves as the county seat. Other communities in the county include Westwood, Bieber, and Doyle.
Facts about Lassen County, California
| Country | United States |
| State | California |
| Region | Northeastern California (Great Basin & Cascade Range) |
| County Seat | Susanville |
| Named After | Peter Lassen |
| Established | 1864 |
| Organized | 1864 |
| Coordinates | 40.6739° N, 120.5946° W |
| Total Area | 4,558 sq mi |
| Land Area | 4,541 sq mi |
| Water Area | 17 sq mi |
| Population (2020) | 32,179 |
| Population Rank | One of the least populous counties in California |
| Major City | Susanville |
| Main Industries | Government Services, Corrections, Agriculture, Forestry |
| Major Airport | Susanville Municipal Airport |
| Time Zone | Pacific Time (UTC−08:00) |
| Known For | Lassen Volcanic National Park (part), High desert landscapes, Outdoor recreation |
| Website | https://www.lassencounty.org |
Ctities and Towns in Lassen County
| City Name | Type | Population (2020) | Pop. Density | Area | Incorporated |
|---|---|---|---|---|---|
| Susanville | City | 16,728 | 2,112.1/sq mi (815.5/km2) | 7.92 sq mi (20.5 km2) | August 24, 1900 |
Places to Visit in Lassen County
Top places to visit in Lassen includes Lassen Volcanic National Park, Juniper Lake, Susanville Ranch Park, Bizz Johnson National, Eagle Lake, Painted Dunes, Butte Lake, Cinder Cone, Snag Lake.
Highways in Lassen County
U.S. Route 395, State Route 36, State Route 44, State Route 139, State Route 299.
Nearest Airports
Nearest airport of Lassen is Reno-Tahoe International Airport (RNO).
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