Santa Rosa, California demographics

Santa Rosa, CA demographics: median age 41.2; 35.1% 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 Rosa city, California · Incorporated city · GEOID 0670098. The survey estimates a population of 177,090 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Santa Rosa is 41.2 years, with a 90% margin of error of 0.5 years. There are 68,321 households (±893). 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	41.2 ±0.5	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 177,090
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	35,553 ±1,417	20.1% ±0.8 pp	22.0%	22.0%
18–34	37,935 ±1,378	21.4% ±0.8 pp	23.9%	22.8%
35–64	69,952 ±1,772	39.5% ±1.0 pp	38.5%	38.0%
65 and older	33,650 ±1,280	19.0% ±0.7 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 177,090
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	86,353 ±1,226	48.8% ±0.7 pp	49.9%	49.5%
Female	90,737 ±1,223	51.2% ±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: 177,090
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	93,720 ±2,019	52.9% ±1.1 pp	39.7%	61.0%
Black or African American alone	3,627 ±629	2.0% ±0.4 pp	5.4%	12.2%
American Indian and Alaska Native alone	2,659 ±605	1.5% ±0.3 pp	1.3%	0.9%
Asian alone	11,465 ±750	6.5% ±0.4 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	770 ±293	0.4% ±0.2 pp	0.4%	0.2%
Some other race alone	37,897 ±2,722	21.4% ±1.5 pp	18.5%	7.1%
Two or more races	26,952 ±2,280	15.2% ±1.3 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 177,090
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	110,879 ±1,955	62.6% ±1.1 pp	59.8%	80.7%
Hispanic or Latino	66,211 ±1,961	37.4% ±1.1 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: 68,321
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	30,765 ±898	45.0% ±1.2 pp	48.4%	46.9%
Other family: male householder, no spouse present	4,040 ±504	5.9% ±0.7 pp	6.3%	5.1%
Other family: female householder, no spouse present	7,759 ±736	11.4% ±1.1 pp	13.1%	12.2%
Nonfamily: householder living alone	19,512 ±1,058	28.6% ±1.5 pp	24.3%	28.7%
Nonfamily: householder not living alone	6,245 ±614	9.1% ±0.9 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 68,321
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	20,257 ±884	29.6% ±1.2 pp	32.4%	29.5%
Households without people under 18	48,064 ±1,256	70.4% ±1.6 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 68,321
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	19,512 ±1,058	28.6% ±1.5 pp	24.3%	28.7%
Two-person households	21,970 ±989	32.2% ±1.4 pp	30.5%	33.8%
Three-person households	11,458 ±851	16.8% ±1.2 pp	16.7%	15.3%
Four-person households	9,013 ±735	13.2% ±1.1 pp	14.9%	12.6%
Five-person households	3,986 ±507	5.8% ±0.7 pp	7.7%	5.9%
Six-person households	1,619 ±330	2.4% ±0.5 pp	3.3%	2.2%
Seven or more people	763 ±232	1.1% ±0.3 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: 177,090
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	139,585 ±1,909	78.8% ±1.1 pp	73.0%	85.9%
Foreign born	37,505 ±1,914	21.2% ±1.1 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 168,626
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	109,633 ±2,231	65.0% ±1.3 pp	55.6%	77.7%
Spanish	46,163 ±2,058	27.4% ±1.2 pp	28.3%	13.6%
French, Haitian, or Cajun	980 ±274	0.6% ±0.2 pp	0.4%	0.7%
German or other West Germanic	780 ±306	0.5% ±0.2 pp	0.3%	0.5%
Russian, Polish, or other Slavic	327 ±117	0.2% ±0.1 pp	0.7%	0.7%
Other Indo-European	2,967 ±470	1.8% ±0.3 pp	3.5%	2.0%
Korean	507 ±349 · low precision	0.3% ±0.2 pp · low precision	1.0%	0.3%
Chinese, including Mandarin and Cantonese	1,358 ±436	0.8% ±0.3 pp	3.5%	1.1%
Vietnamese	1,295 ±343	0.8% ±0.2 pp	1.5%	0.5%
Tagalog, including Filipino	1,382 ±412	0.8% ±0.2 pp	2.1%	0.6%
Other Asian and Pacific Island	1,801 ±432	1.1% ±0.3 pp	2.0%	1.1%
Arabic	484 ±473 · low precision	0.3% ±0.3 pp · low precision	0.6%	0.5%
Other and unspecified	949 ±364	0.6% ±0.2 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: 127,459
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	18,669 ±1,401	14.6% ±1.1 pp	15.3%	10.4%
High school graduate or equivalency	24,393 ±1,350	19.1% ±1.0 pp	20.5%	26.0%
Some college, no degree	27,232 ±1,380	21.4% ±1.1 pp	19.3%	19.1%
Associate’s degree	12,436 ±1,055	9.8% ±0.8 pp	7.9%	8.8%
Bachelor’s degree	27,427 ±1,220	21.5% ±0.9 pp	22.7%	21.6%
Graduate or professional degree	17,302 ±1,027	13.6% ±0.8 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: 175,359
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	153,696 ±1,737	87.6% ±1.0 pp	89.2%	87.7%
Moved within same county	14,508 ±1,477	8.3% ±0.8 pp	6.4%	6.3%
Moved from a different county in the same state	4,869 ±837	2.8% ±0.5 pp	2.6%	3.1%
Moved from a different state	1,211 ±322	0.7% ±0.2 pp	1.1%	2.3%
Moved from abroad	1,075 ±399	0.6% ±0.2 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

6.2% of Santa Rosa residents (±0.6 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 94.3% 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	Santa Rosa	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	6.2% ±0.6 pp	6.6%	8.4%	Not statistically different
Households with a broadband subscription Households	94.3% ±0.3 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	4.2% ±0.4 pp	4.3%	6.2%	Not statistically different

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 Rosa . 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 Rosa housing and cost context or return to the city profile.