Pleasant Hill, California demographics

Pleasant Hill, CA demographics: median age 42.0; 54.6% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Pleasant Hill city, California · Incorporated city · GEOID 0657764. The survey estimates a population of 34,235 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Pleasant Hill is 42.0 years, with a 90% margin of error of 1.1 years. There are 13,258 households (±492). 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	42.0 ±1.1	37.9 ±0.1	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 34,235
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Under 18	6,928 ±667	20.2% ±1.9 pp	22.0%	22.0%
18–34	6,375 ±747	18.6% ±2.2 pp	23.9%	22.8%
35–64	14,905 ±1,004	43.5% ±2.9 pp	38.5%	38.0%
65 and older	6,027 ±575	17.6% ±1.7 pp	15.7%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 34,235
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Male	17,038 ±556	49.8% ±1.6 pp	49.9%	49.5%
Female	17,197 ±547	50.2% ±1.6 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: 34,235
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
White alone	20,110 ±1,261	58.7% ±3.7 pp	39.7%	61.0%
Black or African American alone	1,453 ±463	4.2% ±1.4 pp	5.4%	12.2%
American Indian and Alaska Native alone	70 ±67 · low precision	0.2% ±0.2 pp · low precision	1.3%	0.9%
Asian alone	5,770 ±884	16.9% ±2.6 pp	15.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	220 ±250 · low precision	0.6% ±0.7 pp · low precision	0.4%	0.2%
Some other race alone	1,176 ±297	3.4% ±0.9 pp	18.5%	7.1%
Two or more races	5,436 ±990	15.9% ±2.9 pp	19.2%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 34,235
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Not Hispanic or Latino	29,199 ±823	85.3% ±2.4 pp	59.8%	80.7%
Hispanic or Latino	5,036 ±820	14.7% ±2.4 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: 13,258
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Married-couple family	6,732 ±502	50.8% ±3.3 pp	48.4%	46.9%
Other family: male householder, no spouse present	633 ±203	4.8% ±1.5 pp	6.3%	5.1%
Other family: female householder, no spouse present	1,385 ±303	10.4% ±2.3 pp	13.1%	12.2%
Nonfamily: householder living alone	3,463 ±562	26.1% ±4.1 pp	24.3%	28.7%
Nonfamily: householder not living alone	1,045 ±269	7.9% ±2.0 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 13,258
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Households with people under 18	4,201 ±356	31.7% ±2.4 pp	32.4%	29.5%
Households without people under 18	9,057 ±608	68.3% ±3.8 pp	67.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 13,258
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
One-person nonfamily households	3,463 ±562	26.1% ±4.1 pp	24.3%	28.7%
Two-person households	4,271 ±519	32.2% ±3.7 pp	30.5%	33.8%
Three-person households	2,292 ±351	17.3% ±2.6 pp	16.7%	15.3%
Four-person households	2,314 ±315	17.5% ±2.3 pp	14.9%	12.6%
Five-person households	682 ±234	5.1% ±1.8 pp	7.7%	5.9%
Six-person households	119 ±84 · low precision	0.9% ±0.6 pp · low precision	3.3%	2.2%
Seven or more people	117 ±99 · low precision	0.9% ±0.7 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: 34,235
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Native	27,812 ±822	81.2% ±2.4 pp	73.0%	85.9%
Foreign born	6,423 ±826	18.8% ±2.4 pp	27.0%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 32,623
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
English only	24,913 ±959	76.4% ±2.8 pp	55.6%	77.7%
Spanish	2,413 ±671	7.4% ±2.1 pp	28.3%	13.6%
French, Haitian, or Cajun	188 ±122 · low precision	0.6% ±0.4 pp · low precision	0.4%	0.7%
German or other West Germanic	124 ±83 · low precision	0.4% ±0.3 pp · low precision	0.3%	0.5%
Russian, Polish, or other Slavic	817 ±385	2.5% ±1.2 pp	0.7%	0.7%
Other Indo-European	1,371 ±542	4.2% ±1.7 pp	3.5%	2.0%
Korean	136 ±101 · low precision	0.4% ±0.3 pp · low precision	1.0%	0.3%
Chinese, including Mandarin and Cantonese	1,029 ±350	3.2% ±1.1 pp	3.5%	1.1%
Vietnamese	219 ±144 · low precision	0.7% ±0.4 pp · low precision	1.5%	0.5%
Tagalog, including Filipino	532 ±249	1.6% ±0.8 pp	2.1%	0.6%
Other Asian and Pacific Island	591 ±291	1.8% ±0.9 pp	2.0%	1.1%
Arabic	138 ±133 · low precision	0.4% ±0.4 pp · low precision	0.6%	0.5%
Other and unspecified	152 ±131 · low precision	0.5% ±0.4 pp · low precision	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: 24,608
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Less than high school graduate	1,019 ±308	4.1% ±1.2 pp	15.3%	10.4%
High school graduate or equivalency	3,463 ±505	14.1% ±2.0 pp	20.5%	26.0%
Some college, no degree	4,355 ±581	17.7% ±2.3 pp	19.3%	19.1%
Associate’s degree	2,325 ±550	9.4% ±2.2 pp	7.9%	8.8%
Bachelor’s degree	7,290 ±585	29.6% ±2.3 pp	22.7%	21.6%
Graduate or professional degree	6,156 ±675	25.0% ±2.7 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: 33,834
Category	Count ± MOE	Share ± MOE (pp)	California	U.S.
Same house	29,473 ±867	87.1% ±2.5 pp	89.2%	87.7%
Moved within same county	2,418 ±814	7.1% ±2.4 pp	6.4%	6.3%
Moved from a different county in the same state	1,436 ±478	4.2% ±1.4 pp	2.6%	3.1%
Moved from a different state	440 ±223 · low precision	1.3% ±0.7 pp · low precision	1.1%	2.3%
Moved from abroad	67 ±86 · low precision	0.2% ±0.3 pp · low precision	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

4.0% of Pleasant Hill residents (±1.4 percentage points) had no health insurance coverage when surveyed, compared with 6.6% in California and 8.4% nationally. 95.7% 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	Pleasant Hill	California	U.S.	Compared with California
People without health insurance Civilian noninstitutionalized population	4.0% ±1.4 pp	6.6%	8.4%	Lower
Households with a broadband subscription Households	95.7% ±1.5 pp	93.5%	91.0%	Higher
Veterans Civilian population age 18 and older	3.8% ±0.8 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 Pleasant Hill . 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 Pleasant Hill housing and cost context or return to the city profile.