Fontana, California demographics

Fontana, CA demographics: median age 33.8; 21.4% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Fontana city, California · Incorporated city · GEOID 0624680. The survey estimates a population of 214,169 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Fontana is 33.8 years, with a 90% margin of error of 0.6 years. There are 58,362 households (±889). Age and household distributions show how these totals are composed; they do not establish which neighborhood suits a particular person.

Every count and share is an estimate. “±” is a 90% margin of error (MOE); pp means percentage points. Derived shares use the category count divided by the named universe. Aggregated category MOEs and percentage MOEs are approximate. A margin larger than half its estimate is flagged as low precision. Blank source uncertainty is shown as unavailable, never zero.

Age distribution and sex

City, state and U.S. estimates · ACS 2020–2024
Measure / survey universe	City estimate ± MOE	State estimate ± MOE	U.S. estimate ± MOE
Median age Total population · years	33.8 ±0.6	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 214,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	58,396 ±2,123	27.3% ±1.0 pp	22.0%	22.0%
18–34	52,244 ±1,828	24.4% ±0.9 pp	23.9%	22.8%
35–64	82,744 ±2,249	38.6% ±1.0 pp	38.5%	38.0%
65 and older	20,785 ±1,115	9.7% ±0.5 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 214,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	107,742 ±1,519	50.3% ±0.7 pp	49.9%	49.5%
Female	106,427 ±1,507	49.7% ±0.7 pp	50.1%	50.5%

The age groups are mutually exclusive and cover the entire population. The sex categories follow this ACS table’s published classification; they are not a survey of gender identity.

Race and Hispanic origin

Race · B02001 · ACS 2020–2024 Total population: 214,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	42,428 ±2,368	19.8% ±1.1 pp	39.7%	61.0%
Black or African American alone	16,645 ±1,880	7.8% ±0.9 pp	5.4%	12.2%
American Indian and Alaska Native alone	2,966 ±614	1.4% ±0.3 pp	1.3%	0.9%
Asian alone	18,120 ±1,477	8.5% ±0.7 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	661 ±329	0.3% ±0.2 pp	0.4%	0.2%
Some other race alone	92,054 ±3,229	43.0% ±1.5 pp	18.5%	7.1%
Two or more races	41,295 ±2,889	19.3% ±1.3 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 214,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	69,436 ±2,760	32.4% ±1.3 pp	59.8%	80.7%
Hispanic or Latino	144,733 ±2,766	67.6% ±1.3 pp	40.2%	19.3%

Hispanic origin and race are separate questions. People of Hispanic or Latino origin may be of any race and appear in both tables. Do not add the Hispanic share to race shares. Race alone and two-or-more-race groups are the mutually exclusive categories of the race table.

Household types, children and living alone

Household types · B11001 · ACS 2020–2024 Households: 58,362
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	34,199 ±979	58.6% ±1.4 pp	48.4%	46.9%
Other family: male householder, no spouse present	5,089 ±537	8.7% ±0.9 pp	6.3%	5.1%
Other family: female householder, no spouse present	10,593 ±864	18.2% ±1.5 pp	13.1%	12.2%
Nonfamily: householder living alone	6,388 ±636	10.9% ±1.1 pp	24.3%	28.7%
Nonfamily: householder not living alone	2,093 ±321	3.6% ±0.5 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 58,362
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	29,148 ±908	49.9% ±1.4 pp	32.4%	29.5%
Households without people under 18	29,214 ±1,246	50.1% ±2.0 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 58,362
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	6,388 ±636	10.9% ±1.1 pp	24.3%	28.7%
Two-person households	11,588 ±923	19.9% ±1.6 pp	30.5%	33.8%
Three-person households	12,098 ±917	20.7% ±1.5 pp	16.7%	15.3%
Four-person households	12,638 ±816	21.7% ±1.4 pp	14.9%	12.6%
Five-person households	8,424 ±664	14.4% ±1.1 pp	7.7%	5.9%
Six-person households	4,388 ±469	7.5% ±0.8 pp	3.3%	2.2%
Seven or more people	2,838 ±394	4.9% ±0.7 pp	2.6%	1.4%

A family household contains related people under the Census definition. A nonfamily household can contain one person or unrelated people sharing a home. Households with children can also appear in the household-type and size tables, so those tables must not be added together. Household estimates exclude people living in group quarters from the household universe.

Nativity and languages spoken at home

Nativity · B05002 · ACS 2020–2024 Total population: 214,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	153,642 ±2,027	71.7% ±0.9 pp	73.0%	85.9%
Foreign born	60,527 ±2,021	28.3% ±0.9 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 201,029
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	83,673 ±2,877	41.6% ±1.4 pp	55.6%	77.7%
Spanish	99,080 ±3,200	49.3% ±1.6 pp	28.3%	13.6%
French, Haitian, or Cajun	108 ±71 · low precision	0.1% ±0.0 pp · low precision	0.4%	0.7%
German or other West Germanic	214 ±141 · low precision	0.1% ±0.1 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	265 ±201 · low precision	0.1% ±0.1 pp · low precision	0.7%	0.7%
Other Indo-European	1,755 ±457	0.9% ±0.2 pp	3.5%	2.0%
Korean	449 ±217	0.2% ±0.1 pp	1.0%	0.3%
Chinese, including Mandarin and Cantonese	2,115 ±491	1.1% ±0.2 pp	3.5%	1.1%
Vietnamese	1,587 ±499	0.8% ±0.2 pp	1.5%	0.5%
Tagalog, including Filipino	5,055 ±855	2.5% ±0.4 pp	2.1%	0.6%
Other Asian and Pacific Island	2,354 ±836	1.2% ±0.4 pp	2.0%	1.1%
Arabic	2,913 ±1,000	1.4% ±0.5 pp	0.6%	0.5%
Other and unspecified	1,461 ±613	0.7% ±0.3 pp	0.6%	0.8%

Foreign born means not a U.S. citizen at birth; it includes naturalized citizens. Language categories describe speech at home among people age five and older. A language other than English at home does not establish that someone cannot speak English. This city page uses the published C16001 summary categories because the more detailed B16001 table does not provide these city records in this release.

Educational attainment

Highest completed education · B15003 · ACS 2020–2024 Population age 25 and older: 134,957
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	26,986 ±1,579	20.0% ±1.1 pp	15.3%	10.4%
High school graduate or equivalency	40,847 ±1,680	30.3% ±1.2 pp	20.5%	26.0%
Some college, no degree	28,049 ±1,598	20.8% ±1.1 pp	19.3%	19.1%
Associate’s degree	10,176 ±1,008	7.5% ±0.7 pp	7.9%	8.8%
Bachelor’s degree	20,393 ±1,297	15.1% ±0.9 pp	22.7%	21.6%
Graduate or professional degree	8,506 ±859	6.3% ±0.6 pp	14.4%	14.1%

The denominator excludes residents under 25. Each person is counted in the highest attainment category they completed. This table does not measure the quality of local schools or the education level of every current student.

Residence one year earlier

Geographic mobility · B07003 · ACS 2020–2024 Population age 1 and older: 211,713
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	194,839 ±1,992	92.0% ±0.9 pp	89.2%	87.7%
Moved within same county	9,414 ±1,362	4.4% ±0.6 pp	6.4%	6.3%
Moved from a different county in the same state	4,990 ±1,229	2.4% ±0.6 pp	2.6%	3.1%
Moved from a different state	976 ±386	0.5% ±0.2 pp	1.1%	2.3%
Moved from abroad	1,494 ±556	0.7% ±0.3 pp	0.7%	0.6%

These are respondents’ residence patterns one year before their survey response, pooled across the five-year window. They are not a net migration count for 2025. A person can move to a different house within the same city or county; moves within the same county should not automatically be interpreted as new arrivals to the city.

Health insurance, internet access and veterans

9.1% of Fontana residents (±0.6 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 96.3% of households subscribe to broadband of any type, including cellular data plans. A subscription is not the same as available service: the FCC National Broadband Map shows providers at a specific address.

City, state and U.S. shares · ACS 2020–2024
Measure	Fontana	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	9.1% ±0.6 pp	6.6%	8.4%	Higher
Households with a broadband subscription Households	96.3% ±2.1 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	3.2% ±0.4 pp	4.3%	6.2%	Lower

Reading and reusing the estimates

The Census table links above lead to the original detailed tables. Counts, source universes and uncertainty are retained in the source observation download for Fontana . Compare these figures with the same survey window; do not compare one city’s five-year estimate with another city’s annual estimate as though they measured the same period. For methods, see uncertainty and denominator calculations.

Read Fontana housing and cost context or return to the city profile.