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Sierra County, CA
11 cities and towns and 8 ZIP codes in Sierra County, California.
Population
2,746
Land area
953sq mi
People per sq mi
3
ZIP codes
8
Cities and towns in Sierra County
Sierra County at a glance
- Sierra County is 99% less dense than California as a whole.
- The median household income is $63,355, 36% below the California median of $99,122.
- A typical owner-occupied home is valued at $331,900 (55% below California).
- Its largest cities are Loyalton (748), Sierra Brooks (397) and Calpine (356).
Local data for Sierra County, CA
Counts from official public data
Housing and community stats
Sierra County, CA, American Community Survey 2020-2024
Median household income
$63,355
Poverty rate
4.4%
Median home value
$331,900
Prices -9.1% in a year
Homeownership
72.1%
Bachelor's or higher
25.8%
Median age
54.7
Average commute
24.3 min
Largest reported origins and ancestries: German Americans (358), Irish Americans (329), Mexican Americans (283).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
4.1%
Sep 2026, -0.6 pts in a year
Average annual pay
$55,541
614 jobs, 2025
Income per person
$56,704
BEA, 2024
Federal spending
$29.6M
FY 2026, $9,147 per person
PPP loans
$2.2M
68 loans, 345 jobs reported
Campaign donations
$45.2K
Itemized, 2026 cycle
How people get to work
Sierra County, CA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone69.2%
- Carpooled8.1%
- Public transit0.0%
- Walked1.8%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other4.1%
- Worked from home16.8%
Average one-way commute: 24.3 minutes for people who do not work from home.
Environment and hazard risk
Sierra County, CA, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: wildfire
Storm events since 1996
531
Most often heavy snow
Flood insurance policies
37
1.8% of homes, county
July high / Jan low
82° / 29°F
Hazards, floods and storm historyCheck a flood zone5 historic places
Health statistics
Share of adults in Sierra County, CA, CDC PLACES estimates
Obesity
32.5%
U.S. 33.3% -0.8 pts
Diabetes
15.3%
U.S. 12.1% +3.2 pts
Smoking
15.1%
U.S. 12.8% +2.3 pts
Uninsured (18-64)
7.5%
U.S. 11.1% -3.6 pts
Cities, towns and ZIP codes in Sierra County
Population shown
Frequently asked questions
- What is the largest city in Sierra County, CA?
- Loyalton is the largest city or town in Sierra County, with about 748 residents.
- How many ZIP codes are in Sierra County?
- Sierra County includes 8 ZIP Code Tabulation Areas, including 95910, 95936, 95944, 95960, 96118.
- What is the population of Sierra County, CA?
- About 2,746 people live in Sierra County, based on American Community Survey 5-year estimates.
- What counties border Sierra County?
- Sierra County borders Washoe County, NV, Nevada County, Yuba County, Lassen County, Plumas County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023