Janesville is a community in Lassen County, California, home to about 2,399 people across 34 square miles. Its ZIP code is 96114.
Homes sold for a median of $221 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Janesville. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Reno Tahoe International Airport (RNO)68 miles away |
|---|---|
| Nearest city of 250,000+ | Reno, NV62 miles away |
| Nearest city of 1 million+ | Los Angeles, CA449 miles away |
Straight-line distances from the center of Janesville; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Janesville had 2,461 residents in the 2020 census, up 75% since 2010.
It’s the 860th largest of 1,563 towns in California by population.
Lassen County grew from 4,511 residents in 1900 to 32,730 in 2020.
Lassen County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 22°F. About 13 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Susanville 2sw, CA weather station (12 miles away).
3,483 jobs at 394 businesses in Lassen County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Janesville.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Nurse practitioners and physician assistants | 1 |
| Physical and occupational therapists | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Public schools here are run by Janesville Union Elementary. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Janesville ElementaryJanesville | K–8 | 313 | Public | 1.3 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.