Janesville
Census-designated place in Lassen County, California

Janesville is an unincorporated community (census-designated place) in Lassen County, California, with 2,461 residents (2020 Census). It sits at 4,239 ft (1,292 m) above sea level. The nearest town is Johnstonville, 7.5 miles NW.
- 2,461residents (2020 Census)
- 4,239 ftelevation · 1,292 m
- 33.8 sq miland area · 87.6 km²
- 73 / sq mipopulation density
- 96114ZIP code
About Janesville
Janesville (also known as Lassen) is a sparsely populated census-designated place in Lassen County, California, United States. It is located 11 miles (18 km) southeast of Susanville, at an elevation of 4239 feet (1292 m). Janesville is located on the eastern slopes of the Sierra Nevada Mountain range. Its population is 2,461 as of the 2020 census, up from 1,408 from the 2010 census.
The community consists of an elementary school, a park, four churches, two gas stations, a pizza parlor, a coffee shop, a veterinary hospital, a hardware store, a post office, a Dollar General and a few other businesses.
Janesville stretches over a distance of 8 miles (13 km). Its ZIP Code is 96114. The community is served by area code 530.
Text: Wikipedia · CC BY-SA 4.0
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- Median household income
- $78,466
- Median home value
- $326,900
- Median rent
- $1,374/mo
- Median age
- 52.4
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Map of Janesville
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Open in Google Maps ›Janesville, CA population
Janesville had 2,461 residents in the 2020 Census.
| 2020 Census | 2,461 |
|---|---|
| Density | 73 per sq mi (28 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Janesville at a glance
| State | California (CA) |
|---|---|
| County | Lassen County |
| Type | Census-designated place |
| Population | 2,461 (2020) |
| Land area | 33.81 sq mi (87.6 km²) |
| Water area | 0.02 sq mi (0.05 km²) |
| Elevation | 4,239 ft (1,292 m) |
| Coordinates | 40.3011° N, 120.4903° W |
| ZIP code | 96114 |
| Census code (GEOID) | 0637134 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Janesville
- Johnstonville7.5 mi NW
- Litchfield8.3 mi NE
- Susanville11.7 mi NW
- Milford12.2 mi SE
- Patton Village19.9 mi SE
- Herlong21.5 mi SE
- Taylorsville24.9 mi SW
- Crescent Mills26.6 mi SW
- Greenville26.7 mi SW
- Doyle27.4 mi SE
- Spaulding29.0 mi NW
- Stones Landing29.9 mi NW
Straight-line distance between town centers.
Frequently asked questions about Janesville
What county is Janesville in?
Janesville is in Lassen County, California.
What is the population of Janesville, CA?
2,461 people lived in Janesville at the 2020 Census.
What is the ZIP code of Janesville, CA?
The ZIP code of Janesville is 96114.
What is the elevation of Janesville?
4,239 feet (1,292 m) above sea level.
What towns are near Janesville?
Johnstonville (7.5 mi), Litchfield (8.3 mi), Susanville (11.7 mi), Milford (12.2 mi), Patton Village (19.9 mi).
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