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Williams County, ND
12 cities and towns and 8 ZIP codes in Williams County, North Dakota.
Population
39,555
Land area
2,078sq mi
People per sq mi
19
ZIP codes
8
Cities and towns in Williams County
Williams County at a glance
- Williams County is 67% denser than North Dakota as a whole.
- It is the 5th most populous of 53 counties in North Dakota.
- Households here earn a median of $85,595 a year, 12% more than the North Dakota figure of $76,657.
- A typical owner-occupied home is valued at $284,800 (14% above North Dakota) and median rent is $1,123 a month.
- The biggest population centers are Williston (28,056), Tioga (1,657) and Ray (714).
Local data for Williams County, ND
Counts from official public data
- Hospitals2
- Emergency Rooms2
- Nursing Homes2
- Schools21
- Colleges1
- Libraries2
- Banks11
- Post Offices5
- Parks16
- Grocery Stores12
- Restaurants122
- Affordable Housing5
- Home Health Agencies1
- Hospice Care1
- Dialysis Centers1
- Community Health Centers1
- Mental Health & Addiction Treatment7
- Private Schools2
- Community Colleges & Trade Schools1
- Toxic Release Facilities9
- Historic Places6
Housing and community stats
Williams County, ND, American Community Survey 2020-2024
Median household income
$85,595
Poverty rate
8.6%
Median home value
$284,800
Prices +6.8% in a year
Median rent
$1,123/mo
Homeownership
53.0%
Bachelor's or higher
24.4%
Median age
31.8
Average commute
18.7 min
Largest reported origins and ancestries: German Americans (6,916), Norwegian Americans (6,361), Mexican Americans (3,050).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
2.5%
Aug 2026, -0.4 pts in a year
Average annual pay
$92,058
26,622 jobs, 2025
Income per person
$76,176
BEA, 2024
Federal spending
$161M
FY 2026, $3,939 per person
PPP loans
$205M
2,224 loans, 15,020 jobs reported
Campaign donations
$164K
Itemized, 2026 cycle
How people get to work
Williams County, ND, workers 16 and older. American Community Survey 5-year estimates
- Drove alone81.7%
- Carpooled9.9%
- Public transit0.3%
- Walked3.7%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.5%
- Worked from home4.0%
Average one-way commute: 18.7 minutes for people who do not work from home.
Environment and hazard risk
Williams County, ND, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: winter weather
Storm events since 1996
588
Most often hail
Flood insurance policies
28
0.3% of homes, county
July high / Jan low
85° / 1°F
15.1 inches of rain a year
Hazards, floods and storm historyCheck a flood zone6 historic places
Health statistics
Share of adults in Williams County, ND, CDC PLACES estimates
Obesity
40.4%
U.S. 33.3% +7.1 pts
Diabetes
8.9%
U.S. 12.1% -3.2 pts
Smoking
15.6%
U.S. 12.8% +2.8 pts
Uninsured (18-64)
9.5%
U.S. 11.1% -1.6 pts
Cities, towns and ZIP codes in Williams County
Population shown
Frequently asked questions
- What is the largest city in Williams County, ND?
- Williston is the largest city or town in Williams County, with about 28,056 residents.
- How many ZIP codes are in Williams County?
- Williams County includes 8 ZIP Code Tabulation Areas, including 58755, 58801, 58830, 58843, 58849.
- What is the population of Williams County, ND?
- About 39,555 people live in Williams County, based on American Community Survey 5-year estimates.
- What counties border Williams County?
- Williams County borders McKenzie County, Richland County, MT, Roosevelt County, MT, Mountrail County, Sheridan County, MT, Divide County, Burke County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023