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COUNTY

Williams County

North Dakota · 41,767 residents (2025 est.) · 2,078 sq mi
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Part of the Williston micropolitan area
The short version

Williams County is home to 39,555 people in North Dakota. The population has more than doubled since 2000, adding 19,794 people. This skews young, with a median age of 31.8. That puts it in the top 3% of US counties for household income. About 24% of adults have finished a four-year degree. 53% of homes are owner-occupied.

At a glance
Average income
near the US median
US median: $82,259
Younger
median age 31.8
US median: 38.9
Less educated
24% hold a bachelor's degree
US average: 36%
Less affordable
home values up 192%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
39,555
+100%since 2000
from 19,761 in 2000
41,767 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
19 / sq mi
+101%since 2009
from 9 / sq mi in 2009
US average: 281
Median age
31.8
−20%since 2000
from 39.8 in 2000
US average: 38.9
Land area
2,078 sq mi
Population, 1990 – 2024
18K24K30K37K43K19902000201020202024Williams County
202440K
1990201020202024
Age distribution, 2024
Under 58.5%(3,344)
US avg: 5.6%
5 to 99.4%(3,720)
US avg: 6%
10 to 148.4%(3,323)
US avg: 6.4%
15 to 195.8%(2,302)
US avg: 6.6%
20 to 245.9%(2,325)
US avg: 6.5%
25 to 3416.8%(6,663)
US avg: 13.7%
35 to 4417.2%(6,808)
US avg: 13.2%
45 to 549.4%(3,703)
US avg: 12.2%
55 to 648.7%(3,433)
US avg: 12.7%
65 to 746.3%(2,473)
US avg: 10.2%
75 to 842.6%(1,041)
US avg: 5.1%
85 and over1.1%(420)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$85,595
+49%inflation adjusted, since 2000
from $31,491 in 2000
US average: $82,259
1990 – 2024
Per capita income
$44,320
+164%since 2000
from $16,763 in 2000
US average: $44,673
Households earning $100K+
55.8%
+26.3 ptssince 2009
from 29.5% in 2009
US average: 53.3%
Poverty rate
8.6%
−3.3 ptssince 2000
from 11.9% in 2000
US average: 12.5%
Income inequality (Gini)
0.460
+12%since 2010
from 0.410 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing18.4%
US avg: 1.6%
Manufacturing13.1%
US avg: 0.4%
Information12.2%
US avg: 10.8%
Finance & insurance7.2%
US avg: 5.9%
Wholesale trade5.7%
US avg: 6.9%
Construction5.3%
US avg: 1.2%
Professional, scientific, technical5.2%
US avg: 5.1%
Retail trade4.2%
US avg: 9.9%
Other services3.8%
US avg: 6.7%
Public administration3.6%
US avg: 4.8%
Transportation & warehousing2.9%
US avg: 2.2%
Education & health services2%
US avg: 0.9%
Arts, entertainment, food1.2%
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$284,800
+192%inflation adjusted, since 2000
from $53,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,123
+86%inflation adjusted, since 2000
from $331 in 2000
US average: $1,442
Owner-occupied
53.0%
−18.4 ptssince 2000
from 71.4% in 2000
47.0% rent
Vacancy rate
25.6%
+15.9 ptssince 2009
from 9.7% in 2009
US average: 10.0%
Persons per household
2.57 people
+21%since 2009
from 2.12 people in 2009
US average: 2.54
Owner cost-burdened
15.3%
+2.8 ptssince 2009
from 12.5% in 2009
US average: 22.9%
Renter cost-burdened
27.5%
+7.7 ptssince 2009
from 19.9% in 2009
US average: 47.4%
Afford Score
3.3
+99%since 2009
from 1.7 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
66
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic92.3%(18,245)
Black0.1%(18)
Hispanic / Latino0.9%(185)
Asian0.2%(36)
Other0%
2024
White, non-Hispanic75.7%(29,931)
Black4.7%(1,858)
Hispanic / Latino10.2%(4,028)
Asian1.2%(481)
Other8.2%(3,257)
Diversity Score
51
+139%since 2009
from 21 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
26
−7%since 2020
from 28 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican7.7%(3,050)
Peruvian0.6%(229)
Chilean0.3%(136)
Honduran0.2%(85)
Dominican0.2%(73)
Salvadoran0.2%(71)
Guatemalan0.1%(53)
Puerto Rican0.1%(34)
Panamanian0.1%(24)
Cuban0%(10)
+ 1 more hispanic origin group with data
Asian origin
Filipino1%(387)
Korean0.1%(51)
Chinese0.1%(25)
Pacific Islander origin
Chamorro0.1%(47)
Samoan0%(13)
Ancestry
German17.5%(6,916)
Norwegian16.1%(6,361)
English6.2%(2,447)
Irish5.9%(2,317)
American4.4%(1,759)
Swedish2.1%(850)
Polish1.6%(635)
French1.4%(564)
Dutch1.3%(505)
Scottish1%(377)
+ 24 more ancestry groups with data
Russian0.9%(359)
Italian0.7%(286)
Scotch-Irish0.7%(276)
Danish0.6%(238)
Finnish0.5%(198)
Welsh0.3%(122)
Greek0.3%(120)
West Indian0.3%(114)
Jamaican0.3%(114)
Nigerian0.3%(112)
Arab0.3%(108)
Lebanese0.3%(108)
Canadian0.2%(66)
British0.1%(59)
Turkish0.1%(57)
Ukrainian0.1%(56)
Portuguese0.1%(45)
Czech0.1%(37)
Romanian0.1%(37)
Belgian0.1%(27)
Swiss0.1%(25)
Hungarian0.1%(21)
Armenian0%(15)
Section 05

Education

Bachelor's degree or higher
24.4%
+7.9 ptssince 2000
from 16.5% in 2000
US average: 35.6%
High school or higher
93.1%
+10.5 ptssince 2000
from 82.5% in 2000
US average: 89.6%
Graduate degree
7.1%
+3.0 ptssince 2000
from 4.1% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
18.7 min
+56%since 2000
from 12.0 min in 2000
US average: 26.5
Drive alone to work
81.7%
+4.5 ptssince 2009
from 77.2% in 2009
US average: 68.9%
Carpooled to work
9.9%
−1.9 ptssince 2009
from 11.8% in 2009
US average: 8.5%
Public transit
0.3%
+0.1 ptssince 2009
from 0.1% in 2009
US average: 3.2%
Worked from home
4.0%
−1.6 ptssince 2009
from 5.5% in 2009
US average: 15.0%
Walked to work
3.7%
+0.4 ptssince 2009
from 3.3% in 2009
US average: 2.4%
Biked to work
0.0%
−0.3 ptssince 2009
from 0.4% in 2009
US average: 0.4%
No vehicle available
6.6%
+1.8 ptssince 2009
from 4.7% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
4.4%
+3.0 ptssince 2011
from 1.4% in 2011
US average: 5.2%
Labor force participation
73.4%
+1.9 ptssince 2011
from 71.5% in 2011
US average: 63.5%
Women 20-64 in the labor force
79.1%
+1.8 ptssince 2020
from 77.3% in 2020
US average: 74.6%
Self-employed
14.4%
+1.1 ptssince 2009
from 13.3% in 2009
US average: 13.1%
Management & professional
35.4%
+8.1 ptssince 2009
from 27.3% in 2009
US average: 42.5%
Section 08

People & community

Male
52.9%
+4.1 ptssince 2009
from 48.7% in 2009
Female
47.1%
−4.1 ptssince 2009
from 51.3% in 2009
Foreign born
8.5%
+7.6 ptssince 2009
from 0.9% in 2009
US average: 14.1%
Veterans
8.0%
−4.1 ptssince 2009
from 12.1% in 2009
US average: 6.2%
With a disability
11.1%
Unchangedsince 2012
from 11.1% in 2012
US average: 13.3%
Uninsured
11.5%
+1.5 ptssince 2013
from 10.0% in 2013
US average: 8.4%
Broadband at home
92.3%
+16.6 ptssince 2017
from 75.7% in 2017
US average: 91.0%
Computer in household
97.2%
+4.2 ptssince 2020
from 93.0% in 2020
US average: 95.5%
Same house as last year
80.8%
−0.7 ptssince 2020
from 81.5% in 2020
US average: 87.7%
English only at home
88.5%
−6.2 ptssince 2016
from 94.7% in 2016
US average: 77.7%
Spanish at home
7.1%
+3.3 ptssince 2016
from 3.8% in 2016
US average: 13.6%
Marital status
Men 15+
Never married32.7%(5,011)
Married52.2%(8,012)
Widowed2%(307)
Divorced13.1%(2,015)
Women 15+
Never married24.9%(3,441)
Married59.7%(8,250)
Widowed4.9%(679)
Divorced10.5%(1,453)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
11.5%
+1.5 ptssince 2013
from 10.0% in 2013
US average: 8.4%
Employer-based
63.9%
−4.0 ptssince 2020
from 67.9% in 2020
US average: 54.8%
Direct-purchase
16.0%
+4.7 ptssince 2020
from 11.3% in 2020
US average: 13.8%
Medicare
10.5%
+0.5 ptssince 2020
from 10.0% in 2020
US average: 18.4%
Medicaid
10.1%
+3.5 ptssince 2020
from 6.6% in 2020
US average: 20.9%
VA health care
2.3%
−0.3 ptssince 2020
from 2.6% in 2020
US average: 2.2%
Any private
78.9%
+0.6 ptssince 2020
from 78.3% in 2020
US average: 67.1%
Any public
21.0%
+3.6 ptssince 2020
from 17.4% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)55.5%(1,220)
US avg: 26.4%
Gulf War (1990s)20.5%(451)
US avg: 24.3%
Vietnam era14.4%(316)
US avg: 33.1%
Korean War1.6%(36)
US avg: 4.5%
World War II0.2%(4)
US avg: 1%

Share of the 2,199 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

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Head to head

Compare Williams County to nearby counties

WILLIAMS COUNTY VS
Divide County
Income$91,852+7%
Home value$167,600−41%
Population2,110−95%
SEE FULL COMPARISON →
WILLIAMS COUNTY VS
McKenzie County
Income$93,404+9%
Home value$349,600+23%
Population15,192−64%
SEE FULL COMPARISON →
WILLIAMS COUNTY VS
Sheridan County
Income$70,147−18%
Home value$124,000−56%
Population3,436−92%
SEE FULL COMPARISON →
WILLIAMS COUNTY VS
Mountrail County
Income$80,717−6%
Home value$232,700−18%
Population9,395−78%
SEE FULL COMPARISON →
Frequently asked

How many people live in Williams County, North Dakota?

Williams County, North Dakota has about 39,555 residents according to the 2024 American Community Survey.

What is the median household income in Williams County, North Dakota?

The typical household in Williams County, North Dakota earns about $85,595 a year. Half of households make more than that, and half make less.

Is Williams County, North Dakota expensive?

In Williams County, North Dakota, the median home is worth about $284,800, and the typical rent is about $1,123 a month.

How educated are people in Williams County, North Dakota?

About 24.4% of adults age 25 and over in Williams County, North Dakota hold a bachelor's degree or higher.

What is the poverty rate in Williams County, North Dakota?

About 8.6% of people in Williams County, North Dakota live below the federal poverty line.

Has Williams County, North Dakota grown since 1990?

Yes, Williams County, North Dakota has grown since 1990. The population has added about 18,426 residents, a change of about 87 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →