Hermiston, Oregon demographics

Hermiston, OR demographics: median age 30.9; 16.7% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Hermiston city, Oregon · Incorporated city · GEOID 4133700. The survey estimates a population of 19,546 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Hermiston is 30.9 years, with a 90% margin of error of 1.9 years. There are 6,564 households (±363). 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	30.9 ±1.9	40.4 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 19,546
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Under 18	6,089 ±726	31.2% ±3.7 pp	19.9%	22.0%
18–34	4,841 ±534	24.8% ±2.7 pp	22.5%	22.8%
35–64	6,667 ±636	34.1% ±3.3 pp	38.5%	38.0%
65 and older	1,949 ±325	10.0% ±1.7 pp	19.1%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 19,546
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Male	9,786 ±419	50.1% ±2.1 pp	49.9%	49.5%
Female	9,760 ±417	49.9% ±2.1 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: 19,546
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
White alone	9,908 ±1,058	50.7% ±5.4 pp	74.6%	61.0%
Black or African American alone	200 ±207 · low precision	1.0% ±1.1 pp · low precision	1.9%	12.2%
American Indian and Alaska Native alone	214 ±126 · low precision	1.1% ±0.6 pp · low precision	1.1%	0.9%
Asian alone	178 ±121 · low precision	0.9% ±0.6 pp · low precision	4.5%	6.0%
Native Hawaiian and Other Pacific Islander alone	0 ±21 · low precision	0.0% ±0.1 pp · low precision	0.4%	0.2%
Some other race alone	5,570 ±1,133	28.5% ±5.8 pp	5.2%	7.1%
Two or more races	3,476 ±1,063	17.8% ±5.4 pp	12.3%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 19,546
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Not Hispanic or Latino	8,890 ±731	45.5% ±3.7 pp	85.3%	80.7%
Hispanic or Latino	10,656 ±730	54.5% ±3.7 pp	14.7%	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: 6,564
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Married-couple family	2,919 ±365	44.5% ±5.0 pp	46.7%	46.9%
Other family: male householder, no spouse present	928 ±255	14.1% ±3.8 pp	4.9%	5.1%
Other family: female householder, no spouse present	1,231 ±319	18.8% ±4.7 pp	10.1%	12.2%
Nonfamily: householder living alone	1,369 ±265	20.9% ±3.9 pp	28.4%	28.7%
Nonfamily: householder not living alone	117 ±74 · low precision	1.8% ±1.1 pp · low precision	9.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 6,564
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Households with people under 18	3,155 ±305	48.1% ±3.8 pp	27.2%	29.5%
Households without people under 18	3,409 ±403	51.9% ±5.4 pp	72.8%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 6,564
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
One-person nonfamily households	1,369 ±265	20.9% ±3.9 pp	28.4%	28.7%
Two-person households	1,793 ±363	27.3% ±5.3 pp	36.7%	33.8%
Three-person households	1,530 ±395	23.3% ±5.9 pp	15.0%	15.3%
Four-person households	913 ±222	13.9% ±3.3 pp	11.8%	12.6%
Five-person households	463 ±174	7.1% ±2.6 pp	5.0%	5.9%
Six-person households	432 ±166	6.6% ±2.5 pp	1.9%	2.2%
Seven or more people	64 ±63 · low precision	1.0% ±1.0 pp · low precision	1.2%	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: 19,546
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Native	15,676 ±606	80.2% ±3.1 pp	90.2%	85.9%
Foreign born	3,870 ±603	19.8% ±3.1 pp	9.8%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 17,967
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
English only	9,972 ±920	55.5% ±5.0 pp	84.8%	77.7%
Spanish	7,716 ±879	42.9% ±4.8 pp	9.0%	13.6%
French, Haitian, or Cajun	47 ±74 · low precision	0.3% ±0.4 pp · low precision	0.3%	0.7%
German or other West Germanic	36 ±56 · low precision	0.2% ±0.3 pp · low precision	0.4%	0.5%
Russian, Polish, or other Slavic	9 ±13 · low precision	0.1% ±0.1 pp · low precision	0.8%	0.7%
Other Indo-European	90 ±78 · low precision	0.5% ±0.4 pp · low precision	1.0%	2.0%
Korean	4 ±8 · low precision	0.0% ±0.0 pp · low precision	0.3%	0.3%
Chinese, including Mandarin and Cantonese	22 ±36 · low precision	0.1% ±0.2 pp · low precision	0.8%	1.1%
Vietnamese	0 ±21 · low precision	0.0% ±0.1 pp · low precision	0.6%	0.5%
Tagalog, including Filipino	27 ±36 · low precision	0.2% ±0.2 pp · low precision	0.3%	0.6%
Other Asian and Pacific Island	0 ±21 · low precision	0.0% ±0.1 pp · low precision	1.1%	1.1%
Arabic	0 ±21 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Other and unspecified	44 ±73 · low precision	0.2% ±0.4 pp · low precision	0.5%	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: 11,526
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Less than high school graduate	2,988 ±523	25.9% ±4.4 pp	8.2%	10.4%
High school graduate or equivalency	3,187 ±512	27.7% ±4.3 pp	22.4%	26.0%
Some college, no degree	2,505 ±454	21.7% ±3.8 pp	23.5%	19.1%
Associate’s degree	916 ±253	7.9% ±2.2 pp	9.1%	8.8%
Bachelor’s degree	1,097 ±300	9.5% ±2.6 pp	22.7%	21.6%
Graduate or professional degree	833 ±246	7.2% ±2.1 pp	14.1%	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: 19,293
Category	Count ± MOE	Share ± MOE (pp)	Oregon	U.S.
Same house	17,206 ±777	89.2% ±4.0 pp	86.0%	87.7%
Moved within same county	1,502 ±702	7.8% ±3.6 pp	7.0%	6.3%
Moved from a different county in the same state	316 ±207 · low precision	1.6% ±1.1 pp · low precision	3.4%	3.1%
Moved from a different state	178 ±139 · low precision	0.9% ±0.7 pp · low precision	3.0%	2.3%
Moved from abroad	91 ±89 · low precision	0.5% ±0.5 pp · low precision	0.5%	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

7.4% of Hermiston residents (±2.0 percentage points) had no health insurance coverage when surveyed, compared with 5.9% in Oregon and 8.4% nationally. 89.7% 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	Hermiston	Oregon	U.S.	Compared with Oregon
People without health insurance Civilian noninstitutionalized population	7.4% ±2.0 pp	5.9%	8.4%	Not statistically different
Households with a broadband subscription Households	89.7% ±4.1 pp	92.4%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	5.1% ±1.5 pp	7.2%	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 Hermiston . 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 Hermiston housing and cost context or return to the city profile.