City · California
Eureka, California
Eureka, city, in Humboldt County, California. Eureka had 25,304 residents on July 1, 2025 by the Census Bureau's estimate, down 4.7% since 2020; the 2020 Census counted 26,512 and the ACS 2020-2024 5-year estimates put it at 26,010 (±36). GEOID 0623042.
Residents, July 2025 estimate
25,304
Census Bureau estimate (no margin published)
2020 Census count: 26,512 · ACS 2020-2024: 26,010 ±36
Median household income
$57,662
±$6,115 (90% margin)
California: $99,122
Median home value
$404,500
±$19,037 (90% margin)
California: $734,700
Median gross rent
$1,195
±$73 (90% margin)
California: $2,036
Where is Eureka and what county is it in?
Eureka is a city in Humboldt County, California. It covers 9.6 square miles of land, 2,771 residents per square mile in 2020.
Eureka is in the Eureka-Arcata, CA micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Eureka, and is it growing?
The Census Bureau estimates that 25,304 people lived in Eureka on July 1, 2025, down 4.7% since 2020, a steeper fall than California's (−0.5%). The 2020 Census counted 26,512 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 26,010 (±36).
| Measure | Eureka | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 26,010 ±36 | 134,541 | −956 |
| Households | 10,392 ±498 | 54,922 | −1,214 |
| Average household size | 2.38 ±0.11 | 2.37 | +0.17 |
| Housing units | 11,628 ±512 | 62,883 | −1,289 |
Eureka's population since 2000
From 26,128 in 2000 to 25,304 in 2025: down 3.2%. The 2000, 2010 and 2020 figures are census counts, each for Eureka as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Eureka?
The median resident of Eureka is 39.1 years old; 19.3% are under 18 and 16.7% are 65 or older. The largest group is non-Hispanic white residents at 64.1%, then Hispanic or Latino residents (of any race) at 15.9%. 7.5% of residents were born outside the United States.
| Measure | Eureka | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.1 ±1.8 | 39.9 | no clear change |
| Under 18 years | 19.3% ±2.4 pts | 18.8% | – |
| 65 years and over | 16.7% ±1.5 pts | 19.8% | – |
| Male | 50.2% ±2.0 pts | 49.5% | – |
| Hispanic or Latino (any race) | 15.9% ±2.5 pts | 14.2% | no clear change |
| White alone, not Hispanic | 64.1% ±2.7 pts | 69.5% | −5.7 pts |
| Black or African American alone, not Hispanic | 2.0% ±0.8 pts | 1.3% | no clear change |
| Asian alone, not Hispanic | 5.5% ±1.7 pts | 3.0% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 1.7% ±0.6 pts | 3.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.8% ±0.9 pts | 0.3% | – |
| Two or more races, not Hispanic | 9.3% ±1.9 pts | 8.0% | – |
| Some other race alone, not Hispanic | 0.7% ±0.5 pts | 0.8% | – |
| Born outside the United States | 7.5% ±2.4 pts | 6.2% | no clear change |
| Speak a language other than English at home (age 5+) | 13.7% ±3.1 pts | 11.1% | – |
| Civilian veterans (age 18+) | 7.1% ±1.7 pts | 6.0% | – |
| With a disability | 21.9% ±3.1 pts | 18.9% | – |
| No health insurance coverage | 5.9% ±1.7 pts | 4.9% | no clear change |
| High school graduate or higher (age 25+) | 90.0% ±2.5 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 29.0% ±2.8 pts | 33.1% | no clear change |
| Graduate or professional degree (age 25+) | 9.4% ±1.8 pts | 11.9% | – |
| Lived in the same house a year earlier | 83.6% ±3.2 pts | 85.3% | – |
| Moved from another state in the past year | 0.9% ±0.5 pts | 1.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Eureka earn?
Half of Eureka's 10,392 households earn less than $57,662 a year (±$6,115), against $61,160 in Humboldt County and $99,122 in California. In 2015-2019 it was $52,784 in 2024 dollars; the margins of error cannot tell the two periods apart. 18.1% of residents live below the poverty line.
| Measure | Eureka | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $57,662 ±$6,115 | $61,160 | no clear change |
| Mean household income | $86,215 ±$13,317 | $86,064 | – |
| Per capita income | $35,450 ±$5,396 | $36,080 | no clear change |
| People below the poverty line | 18.1% ±3.4 pts | 18.7% | no clear change |
| Children under 18 below the poverty line | 16.8% ±8.0 pts | 17.5% | no clear change |
| Households receiving SNAP | 27.4% ±3.6 pts | 21.0% | – |
| Households with a computer | 96.4% ±1.4 pts | 94.7% | – |
| Households with a broadband subscription | 91.5% ±2.8 pts | 90.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Eureka?
Owners occupy 47.8% of Eureka's occupied homes and renters 52.2%. The median owner-occupied home is valued at $404,500 by its owner (±$19,037). The median renter pays $1,195 a month including utilities, and 52.8% of renters pay 35% or more of their income on rent.
| Measure | Eureka | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $404,500 ±$19,037 | $446,900 | +$58,183 |
| Median gross rent | $1,195 ±$73 | $1,287 | no clear change |
| Renters paying 35% or more of income on rent | 52.8% ±5.2 pts | 53.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,917 ±$115 | $2,147 | – |
| Owner-occupied homes | 47.8% ±3.6 pts | 56.5% | no clear change |
| Renter-occupied homes | 52.2% ±3.6 pts | 43.5% | – |
| Housing units | 11,628 ±512 | 62,883 | −1,289 |
| Homeowner vacancy rate | 0.7% ±1.0 pts | 1.1% | – |
| Rental vacancy rate | 1.5% ±1.6 pts | 2.2% | – |
| Single-family detached homes | 60.5% ±3.6 pts | 69.0% | – |
| Mobile homes | 1.4% ±0.9 pts | 6.9% | – |
| Built 2020 or later | 0.2% ±0.2 pts | 0.8% | – |
| Built 2010 to 2019 | 1.2% ±0.9 pts | 5.4% | – |
| Built 1939 or earlier | 32.3% ±3.3 pts | 13.8% | – |
| Households with no vehicle | 11.7% ±2.9 pts | 6.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Eureka building?
Builders took permits for 132 new housing units in Eureka in 2025 (13 in single-family houses), 5.2 per 1,000 residents against 2.6 across California.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Eureka work and get to work?
68.8% of Eureka's workers drive alone and 11.5% work from home. The average trip to work takes 15.8 minutes. The unemployment rate in 2020-2024 averaged 10.3%.
| Measure | Eureka | Humboldt County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 59.7% ±3.5 pts | 56.9% | – |
| Unemployment rate | 10.3% ±2.8 pts | 9.0% | no clear change |
| Drove alone to work | 68.8% ±4.9 pts | 67.9% | – |
| Carpooled | 9.6% ±3.6 pts | 11.0% | – |
| Public transportation | 1.8% ±1.0 pts | 1.0% | – |
| Walked | 5.3% ±1.7 pts | 4.4% | – |
| Worked from home | 11.5% ±2.4 pts | 13.0% | +4.3 pts |
| Mean travel time to work | 15.8 min ±1.4 | 19.0 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Eureka?
6 census tracts lie mostly in Eureka, and 5 more reach into it (2020 census blocks). Their median household incomes run from $38,804 (Tract 1) to $95,440 (Tract 7).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 2Humboldt County | 6,038 | $53,015 |
| Tract 6Humboldt County | 5,059 | $83,704 |
| Tract 3Humboldt County | 5,863 | $69,384 |
| Tract 1Humboldt County | 4,582 | $38,804 |
| Tract 7Humboldt County | 5,791 | $95,440 |
| Tract 5Humboldt County | 3,207 | $39,342 |
| Tract 4Humboldt County | 3,963 | $51,636 |
| Tract 8Humboldt County | 4,846 | $58,632 |
| Tract 107.02Humboldt County | 2,764 | $70,326 |
| Tract 107.01Humboldt County | 4,601 | $77,793 |
| Tract 13Humboldt County | 1,695 | $59,154 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Eureka) · Census block assignment files
How does Eureka compare with other places in California?
By the Census Bureau's July 2025 estimates, Eureka is the 1,597th-most populous of the 19,476 U.S. incorporated places that have one and the 273rd-most populous of 483 in California.
Eureka ranks 907th of 1,037 places in California with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 273rd | 483 |
| Growth 2020-2025 (PEP) | 396th | 469 |
| Residents per square mile | 492nd | 1,077 |
| Median household income | 907th | 1,037 |
| Per capita income | 679th | 1,073 |
| Median home value | 763rd | 1,054 |
| Median gross rent | 860th | 987 |
| Poverty rate | 177th | 836 |
| Bachelor's degree or higher | 529th | 988 |
| Median age | 567th | 1,075 |
| Owner-occupied share | 933rd | 1,064 |
| Work from home | 562nd | 822 |
| Travel time to work | 1,033rd | 1,069 |
Eureka's figures with every place in California (CSV)
Every place in California, sortable · Compare Eureka with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Eureka?
6 of the 57 figures for Eureka on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Eureka are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Eureka.