Williston, North Dakota demographics

Williston, ND demographics: median age 32.0; 25.8% of adults 25+ hold a bachelor’s degree. Age, race, households, languages and education, ACS 2020–2024 with margins of error.

ACS 2020–2024 · Williston city, North Dakota · Incorporated city · GEOID 3886220. The survey estimates a population of 28,056 for its five-year window. This is separate from the annual July 2025 population estimate on the city overview.

Median age in Williston is 32.0 years, with a 90% margin of error of 1.8 years. There are 11,360 households (±694). 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	32.0 ±1.8	35.9 ±0.2	38.9 ±0.1

Age groups · B01001 · ACS 2020–2024 Total population: 28,056
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Under 18	7,743 ±803	27.6% ±2.9 pp	23.5%	22.0%
18–34	7,288 ±685	26.0% ±2.4 pp	25.3%	22.8%
35–64	10,215 ±970	36.4% ±3.5 pp	34.7%	38.0%
65 and older	2,810 ±498	10.0% ±1.8 pp	16.5%	17.2%

Sex categories as published by ACS · B01001 · ACS 2020–2024 Total population: 28,056
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Male	14,495 ±497	51.7% ±1.8 pp	51.2%	49.5%
Female	13,561 ±501	48.3% ±1.8 pp	48.8%	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: 28,056
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
White alone	21,872 ±861	78.0% ±3.1 pp	83.0%	61.0%
Black or African American alone	1,806 ±297	6.4% ±1.1 pp	3.4%	12.2%
American Indian and Alaska Native alone	780 ±302	2.8% ±1.1 pp	4.4%	0.9%
Asian alone	472 ±148	1.7% ±0.5 pp	1.7%	6.0%
Native Hawaiian and Other Pacific Islander alone	47 ±61 · low precision	0.2% ±0.2 pp · low precision	0.1%	0.2%
Some other race alone	1,157 ±530	4.1% ±1.9 pp	1.5%	7.1%
Two or more races	1,922 ±875	6.9% ±3.1 pp	5.9%	12.6%

Hispanic or Latino origin · B03003 · ACS 2020–2024 Total population: 28,056
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Not Hispanic or Latino	25,136 ±620	89.6% ±2.2 pp	95.3%	80.7%
Hispanic or Latino	2,920 ±617	10.4% ±2.2 pp	4.7%	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: 11,360
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Married-couple family	5,093 ±575	44.8% ±4.3 pp	45.8%	46.9%
Other family: male householder, no spouse present	993 ±402	8.7% ±3.5 pp	4.2%	5.1%
Other family: female householder, no spouse present	876 ±332	7.7% ±2.9 pp	7.3%	12.2%
Nonfamily: householder living alone	3,557 ±618	31.3% ±5.1 pp	34.7%	28.7%
Nonfamily: householder not living alone	841 ±357	7.4% ±3.1 pp	7.9%	7.0%

Households with children · B11005 · ACS 2020–2024 Households: 11,360
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Households with people under 18	3,469 ±448	30.5% ±3.5 pp	27.4%	29.5%
Households without people under 18	7,891 ±800	69.5% ±5.6 pp	72.6%	70.5%

Household size · B11016 · ACS 2020–2024 Households: 11,360
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
One-person nonfamily households	3,557 ±618	31.3% ±5.1 pp	34.7%	28.7%
Two-person households	4,079 ±714	35.9% ±5.9 pp	34.8%	33.8%
Three-person households	1,569 ±396	13.8% ±3.4 pp	12.0%	15.3%
Four-person households	1,431 ±347	12.6% ±3.0 pp	10.3%	12.6%
Five-person households	390 ±222 · low precision	3.4% ±1.9 pp · low precision	5.3%	5.9%
Six-person households	122 ±89 · low precision	1.1% ±0.8 pp · low precision	1.9%	2.2%
Seven or more people	212 ±189 · low precision	1.9% ±1.7 pp · low precision	1.0%	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: 28,056
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Native	24,871 ±690	88.6% ±2.5 pp	95.3%	85.9%
Foreign born	3,185 ±687	11.4% ±2.4 pp	4.7%	14.1%

Language spoken at home · C16001 · ACS 2020–2024 Population age 5 and older: 25,857
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
English only	22,393 ±823	86.6% ±3.0 pp	93.3%	77.7%
Spanish	2,070 ±724	8.0% ±2.8 pp	2.3%	13.6%
French, Haitian, or Cajun	415 ±318 · low precision	1.6% ±1.2 pp · low precision	0.4%	0.7%
German or other West Germanic	144 ±161 · low precision	0.6% ±0.6 pp · low precision	0.7%	0.5%
Russian, Polish, or other Slavic	0 ±19 · low precision	0.0% ±0.1 pp · low precision	0.3%	0.7%
Other Indo-European	18 ±31 · low precision	0.1% ±0.1 pp · low precision	0.7%	2.0%
Korean	0 ±19 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.3%
Chinese, including Mandarin and Cantonese	21 ±41 · low precision	0.1% ±0.2 pp · low precision	0.2%	1.1%
Vietnamese	9 ±17 · low precision	0.0% ±0.1 pp · low precision	0.1%	0.5%
Tagalog, including Filipino	312 ±143	1.2% ±0.6 pp	0.4%	0.6%
Other Asian and Pacific Island	39 ±45 · low precision	0.2% ±0.2 pp · low precision	0.3%	1.1%
Arabic	0 ±19 · low precision	0.0% ±0.1 pp · low precision	0.2%	0.5%
Other and unspecified	436 ±355 · low precision	1.7% ±1.4 pp · low precision	1.2%	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: 17,857
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Less than high school graduate	1,236 ±507	6.9% ±2.8 pp	6.0%	10.4%
High school graduate or equivalency	6,392 ±894	35.8% ±4.9 pp	25.5%	26.0%
Some college, no degree	3,114 ±635	17.4% ±3.5 pp	21.8%	19.1%
Associate’s degree	2,500 ±542	14.0% ±3.0 pp	14.0%	8.8%
Bachelor’s degree	3,264 ±590	18.3% ±3.3 pp	23.0%	21.6%
Graduate or professional degree	1,351 ±380	7.6% ±2.1 pp	9.7%	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: 27,937
Category	Count ± MOE	Share ± MOE (pp)	North Dakota	U.S.
Same house	22,591 ±1,330	80.9% ±4.8 pp	84.2%	87.7%
Moved within same county	2,428 ±771	8.7% ±2.8 pp	7.7%	6.3%
Moved from a different county in the same state	1,170 ±630 · low precision	4.2% ±2.3 pp · low precision	3.3%	3.1%
Moved from a different state	1,607 ±756	5.8% ±2.7 pp	4.2%	2.3%
Moved from abroad	141 ±104 · low precision	0.5% ±0.4 pp · low precision	0.6%	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

11.4% of Williston residents (±2.9 percentage points) had no health insurance coverage when surveyed, compared with 6.5% in North Dakota and 8.4% nationally. 93.2% 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	Williston	North Dakota	U.S.	Compared with North Dakota
People without health insurance Civilian noninstitutionalized population	11.4% ±2.9 pp	6.5%	8.4%	Higher
Households with a broadband subscription Households	93.2% ±8.0 pp	88.7%	91.0%	Not statistically different
Veterans Civilian population age 18 and older	8.8% ±2.6 pp	7.1%	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 Williston . 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 Williston housing and cost context or return to the city profile.