Santa Monica, California demographics

Santa Monica, CA demographics: median age 42.7; 70.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Santa Monica city, California · Incorporated city · GEOID 0670000. The survey estimates a population of 91,169 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Santa Monica is 42.7 years, with a 90% margin of error of 1.2 years. There are 47,297 households (±1,126). 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	42.7 ±1.2	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 91,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	12,589 ±969	13.8% ±1.1 pp	22.0%	22.0%
18–34	21,748 ±1,357	23.9% ±1.5 pp	23.9%	22.8%
35–64	39,016 ±1,801	42.8% ±2.0 pp	38.5%	38.0%
65 and older	17,816 ±1,146	19.5% ±1.3 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 91,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	42,732 ±1,172	46.9% ±1.3 pp	49.9%	49.5%
Female	48,437 ±1,172	53.1% ±1.3 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: 91,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	59,334 ±1,699	65.1% ±1.9 pp	39.7%	61.0%
Black or African American alone	4,828 ±796	5.3% ±0.9 pp	5.4%	12.2%
American Indian and Alaska Native alone	494 ±233	0.5% ±0.3 pp	1.3%	0.9%
Asian alone	9,230 ±930	10.1% ±1.0 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	225 ±260 · low precision	0.2% ±0.3 pp · low precision	0.4%	0.2%
Some other race alone	4,602 ±947	5.0% ±1.0 pp	18.5%	7.1%
Two or more races	12,456 ±1,543	13.7% ±1.7 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 91,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	77,232 ±1,377	84.7% ±1.5 pp	59.8%	80.7%
Hispanic or Latino	13,937 ±1,377	15.3% ±1.5 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: 47,297
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	14,083 ±714	29.8% ±1.3 pp	48.4%	46.9%
Other family: male householder, no spouse present	1,416 ±317	3.0% ±0.7 pp	6.3%	5.1%
Other family: female householder, no spouse present	3,664 ±576	7.7% ±1.2 pp	13.1%	12.2%
Nonfamily: householder living alone	22,878 ±1,555	48.4% ±3.1 pp	24.3%	28.7%
Nonfamily: householder not living alone	5,256 ±574	11.1% ±1.2 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 47,297
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	6,878 ±475	14.5% ±0.9 pp	32.4%	29.5%
Households without people under 18	40,419 ±1,295	85.5% ±1.8 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 47,297
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	22,878 ±1,555	48.4% ±3.1 pp	24.3%	28.7%
Two-person households	15,023 ±1,026	31.8% ±2.0 pp	30.5%	33.8%
Three-person households	5,321 ±616	11.3% ±1.3 pp	16.7%	15.3%
Four-person households	3,025 ±373	6.4% ±0.8 pp	14.9%	12.6%
Five-person households	800 ±218	1.7% ±0.5 pp	7.7%	5.9%
Six-person households	181 ±94 · low precision	0.4% ±0.2 pp · low precision	3.3%	2.2%
Seven or more people	69 ±70 · low precision	0.1% ±0.1 pp · low precision	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: 91,169
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	69,946 ±1,460	76.7% ±1.6 pp	73.0%	85.9%
Foreign born	21,223 ±1,456	23.3% ±1.6 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 87,482
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	63,175 ±1,869	72.2% ±2.1 pp	55.6%	77.7%
Spanish	9,034 ±1,165	10.3% ±1.3 pp	28.3%	13.6%
French, Haitian, or Cajun	978 ±317	1.1% ±0.4 pp	0.4%	0.7%
German or other West Germanic	607 ±227	0.7% ±0.3 pp	0.3%	0.5%
Russian, Polish, or other Slavic	1,672 ±508	1.9% ±0.6 pp	0.7%	0.7%
Other Indo-European	5,297 ±814	6.1% ±0.9 pp	3.5%	2.0%
Korean	903 ±344	1.0% ±0.4 pp	1.0%	0.3%
Chinese, including Mandarin and Cantonese	1,736 ±540	2.0% ±0.6 pp	3.5%	1.1%
Vietnamese	198 ±122 · low precision	0.2% ±0.1 pp · low precision	1.5%	0.5%
Tagalog, including Filipino	229 ±135 · low precision	0.3% ±0.2 pp · low precision	2.1%	0.6%
Other Asian and Pacific Island	1,491 ±811 · low precision	1.7% ±0.9 pp · low precision	2.0%	1.1%
Arabic	710 ±348	0.8% ±0.4 pp	0.6%	0.5%
Other and unspecified	1,452 ±409	1.7% ±0.5 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: 74,076
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	3,864 ±586	5.2% ±0.8 pp	15.3%	10.4%
High school graduate or equivalency	5,900 ±862	8.0% ±1.2 pp	20.5%	26.0%
Some college, no degree	7,545 ±720	10.2% ±1.0 pp	19.3%	19.1%
Associate’s degree	4,391 ±736	5.9% ±1.0 pp	7.9%	8.8%
Bachelor’s degree	29,773 ±1,410	40.2% ±1.8 pp	22.7%	21.6%
Graduate or professional degree	22,603 ±1,395	30.5% ±1.8 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: 90,485
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	79,044 ±1,153	87.4% ±1.3 pp	89.2%	87.7%
Moved within same county	6,959 ±885	7.7% ±1.0 pp	6.4%	6.3%
Moved from a different county in the same state	1,114 ±318	1.2% ±0.4 pp	2.6%	3.1%
Moved from a different state	2,185 ±450	2.4% ±0.5 pp	1.1%	2.3%
Moved from abroad	1,183 ±452	1.3% ±0.5 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

3.5% of Santa Monica residents (±0.7 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 94.1% 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	Santa Monica	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	3.5% ±0.7 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	94.1% ±1.1 pp	93.5%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	2.6% ±0.5 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 Santa Monica . 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 Santa Monica housing and cost context or return to the city profile.