Demographics of Eureka city, California

Eureka city, California had 25,304 people on July 1, 2025, by the Census Bureau’s estimate: −1,167 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Eureka city, in four figures

25,304
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 26,010 ±36.; −4.4%
Change since July 2020: −1,167 people.; 39.1 ±1.8
Median age: ACS 2020–⁠2024.; $57,662 ±$6,115
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Eureka city, California's population shrank 4.4% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Eureka city, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Eureka city, California's population shrank 4.4% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Eureka city, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	26,471	100.0	100.0
2021	26,368	99.6	100.2
2022	26,066	98.5	100.7
2023	25,724	97.2	101.6
2024	25,433	96.1	102.5
2025	25,304	95.6	103.1

Population of Eureka city, California on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	26,471	—
2021	26,368	−103
2022	26,066	−302
2023	25,724	−342
2024	25,433	−291
2025	25,304	−129

Age, 2020–2024

The median age is 39.1 ±1.8: for men 39.1 ±2.7 and for women 39.0 ±1.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Eureka city by age, ACS 2020–2024
Age	People	Share	California	United States
Under 5	1,395 ±283	5.4% ±1.1	5.5% ±<0.1	5.6% ±<0.1
5 to 17	3,615 ±544	13.9% ±2.1	16.5% ±<0.1	16.3% ±<0.1
18 to 24	2,411 ±547	9.3% ±2.1	9.1% ±<0.1	9.1% ±<0.1
25 to 44	8,075 ±686	31.0% ±2.6	28.7% ±<0.1	26.9% ±<0.1
45 to 64	6,174 ±651	23.7% ±2.5	24.6% ±<0.1	24.8% ±<0.1
65 and over	4,340 ±470	16.7% ±1.8	15.7% ±<0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $57,662 ±$6,115, and income per person $35,450 ±$5,396, in 2024 dollars. The median is $99,122 ±$310 in California and $80,734 ±$166 in the United States.

Households by income

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Households in Eureka city by income, ACS 2020–2024
Household income	Households	Share	California	United States
Under $25,000	2,039 ±379	19.6% ±3.5	12.5% ±0.1	14.6% ±<0.1
$25,000 to $49,999	2,442 ±445	23.5% ±4.1	13.3% ±0.1	16.7% ±<0.1
$50,000 to $74,999	1,944 ±397	18.7% ±3.7	13.0% ±0.1	15.5% ±<0.1
$75,000 to $99,999	1,060 ±284	10.2% ±2.7	11.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	1,603 ±335	15.4% ±3.1	17.8% ±0.1	17.5% ±<0.1
$150,000 to $199,999	701 ±229	6.7% ±2.2	11.3% ±0.1	9.6% ±<0.1
$200,000 or more	603 ±227	5.8% ±2.2	20.5% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Eureka city by age, ACS 2020–2024
Age	Below poverty	Rate	California	United States
All ages	4,655 ±871	18.1% ±3.4	12.0% ±0.1	12.5% ±0.1
Under 18	837 ±284	16.8% ±5.2	15.0% ±0.1	16.1% ±0.1
18 to 59	2,775 ±602	18.6% ±3.8	11.0% ±0.1	11.6% ±0.1
60 and over	1,043 ±269	18.0% ±4.3	11.5% ±0.1	11.0% ±<0.1

Housing, 2020–2024

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Housing in Eureka city, ACS 2020–2024
Measure	Eureka city	California	United States
Housing units	11,628 ±512	14,644,735 ±1,665	143,775,355 ±10,234
Occupied	89.4% ±1.7	92.5% ±0.1	89.9% ±0.1
Vacant	10.6% ±3.0	7.5% ±0.1	10.1% ±0.1
Owner occupied	47.8% ±3.9	55.9% ±0.3	65.2% ±0.3
Renter occupied	52.2% ±3.3	44.1% ±0.2	34.8% ±0.1
Median home value	$404,500 ±$19,037	$734,700 ±$1,307	$332,700 ±$236
Median gross rent	$1,195 ±$73	$2,036 ±$5	$1,413 ±$2
Median year built	1954 ±2	1976 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Eureka city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	California	United States
Hispanic or Latino	4,126 ±650	15.9% ±2.5	40.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	16,680 ±701	64.1% ±2.7	33.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	516 ±209	2.0% ±0.8	5.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	1,432 ±433	5.5% ±1.7	15.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	446 ±166	1.7% ±0.6	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 439	0% to 1.7%	0.3% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	45 to 319	0.2% to 1.2%	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,413 ±506	9.3% ±1.9	4.4% ±<0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Eureka city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	California	United States
Born in the state	18,102 ±743	69.6% ±2.9	56.5% ±0.1	57.3% ±<0.1
Born in another state	5,744 ±605	22.1% ±2.3	15.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	73 to 351	0.3% to 1.3%	1.5% ±<0.1	1.7% ±<0.1
Born abroad	1,952 ±616	7.5% ±2.4	27.0% ±0.1	14.1% ±<0.1
Naturalized citizens	1,235 ±522	4.7% ±2.0	14.7% ±0.1	7.4% ±<0.1
Not citizens	717 ±285	2.8% ±1.1	12.3% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Eureka city among the places of California

292nd of 661 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the California page.

Places of California near Eureka city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Wasco city	26,558 ±34
Soledad city	26,365 ±56
Hercules city	26,302 ±52
Windsor town	26,081 ±36
South Pasadena city	26,068 ±47
Eureka city	26,010 ±36
El Cerrito city	25,994 ±33
Galt city	25,962 ±58
North Tustin CDP	25,807 ±1,638
Imperial Beach city	25,764 ±67
Bloomington CDP	25,698 ±1,861

Elsewhere on the site

Reported crime in Eureka city, California

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026