County profile · North Dakota
Williams County, ND market data
Population, household spending and competition for 56 business types in Williams County, each scored against other counties.
- Population, 2025
- 41,767
- +1.4% since 2020
- Households
- 15,154
- Median household income
- $85,595
- −1.8% vs. 2015–2019, before inflation
- Median home value
- $284,800
- Jobs located here
- 25,521
- Highest market score
- 82
- Primary care and pediatrics, #71 of 1,656 scored counties
A site report maps the competitors on map listings around any address in Williams County by name and distance, and the households and spending within reach. Or open the report at the center of Williams County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
An estimated 41,767 people live in Williams County, in 15,154 households. Population estimates show Williams County grew 1.4% from 2020 to 2025, slower than the U.S. (+3.1%). The median household income in Williams County is $85,595 a year, 6% above the U.S. median of $80,734. That fell 1.8% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Williams County spend the most on vehicle maintenance and repairs (an index of 123, where 100 is the U.S. average) and the least on child care and other personal services (85).
The highest Groundwork market scores in Williams County are for primary care and pediatric clinics (82), dentists and orthodontists (74) and HVAC and plumbing companies (73). Williams County ranks #71 of 1,656 scored counties for primary care and pediatric clinics.
Williams County is part of the Williston area. For its number of households, Williams County has the most map listings, relative to the U.S., for electricians (2.6 times the U.S. rate) and the fewest for dentists and orthodontists (40% below the U.S. rate).
All 56 business types in Williams County
Highest Groundwork market score first. Each score compares Williams County with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Primary care and pediatrics | 82 | #71 of 1,656 | 8 | 5.3 | $2.9M | 163 | 5 |
| Dentists and orthodontists | 74 | #176 of 1,886 | 12 | 7.9 | $1.9M | 197 | 10 |
| HVAC and plumbing | 73 | #139 of 1,707 | 5 | 3.3 | $9M | 190 | 12 |
| Pet businesses | 73 | #205 of 2,200 | 18 | 11.9 | $793K | 90 | 3 |
| Grocery stores | 71 | #392 of 2,070 | 10 | 6.6 | $9.6M | 104 | 4 |
| Barbershops | 70 | #234 of 1,356 | 6 | 4.0 | $2.7M | 145 | Under 3 |
| Grocery and convenience stores | 67 | #544 of 2,402 | 36 | 23.8 | $2.7M | 79 | 5 |
| Fast food and sandwich shops | 66 | #502 of 2,222 | 16 | 10.6 | $4M | 133 | 30 |
| Doctors, dentists and clinics | 65 | #551 of 2,394 | 98 | 64.7 | $238K | 156 | 31 |
| Landscaping and lawn care | 64 | #363 of 1,493 | 5 | 3.3 | $4.1M | 139 | 14 |
| Car washes and detailing | 63 | #387 of 1,451 | 6 | 4.0 | $3M | 118 | 3 |
| Hair salons | 63 | #528 of 2,339 | 28 | 18.5 | $584K | 136 | 10 |
| Convenience stores | 63 | #660 of 2,261 | 15 | 9.9 | $6.4M | 82 | Under 3 |
| Pizza | 59 | #685 of 2,090 | 13 | 8.6 | $5M | 98 | 30 |
| Pet grooming and boarding | 58 | #534 of 1,461 | 7 | 4.6 | $2M | 80 | 3 |
| Martial arts and dance studios | 57 | #475 of 1,334 | 9 | 5.9 | $1.8M | 89 | 3 |
| Home repair trades | 56 | #734 of 2,057 | 17 | 11.2 | $2.7M | 109 | 32 |
| Bakeries and dessert shops | 55 | #723 of 1,889 | 11 | 7.3 | $5.9M | 142 | 21 |
| Chiropractors | 53 | #652 of 1,490 | 9 | 5.9 | $2.6M | 108 | 9 |
| Collision repair and body shops | 52 | #611 of 1,327 | 5 | 3.3 | $3.6M | 116 | 9 |
| Clothing, shoes and laundry | 52 | #1,071 of 2,210 | 37 | 24.4 | $888K | 101 | 10 |
| Sit-down restaurants | 52 | #1,102 of 2,405 | 95 | 62.7 | $681K | 103 | 27 |
| Clothing and shoe stores | 50 | #1,064 of 2,087 | 28 | 18.5 | $1.2M | 92 | 10 |
| Lawn, cleaning and pest control | 49 | #886 of 1,771 | 11 | 7.3 | $1.9M | 110 | 35 |
| Salons, barbers and spas | 47 | #1,334 of 2,385 | 66 | 43.6 | $248K | 117 | 23 |
| Nail salons | 46 | #802 of 1,328 | 9 | 5.9 | $1.8M | 109 | 7 |
| Physical therapy | 46 | #824 of 1,422 | 12 | 7.9 | $1.9M | 81 | 7 |
| Gyms, studios and classes | 46 | #1,263 of 2,088 | 28 | 18.5 | $579K | 87 | 10 |
| Restaurants and cafes | 46 | #1,358 of 2,405 | 177 | 116.8 | $366K | 99 | 76 |
| Gyms | 45 | #1,092 of 1,792 | 15 | 9.9 | $1.1M | 83 | 7 |
| Insurance agencies | 43 | #1,343 of 2,272 | 15 | 9.9 | $1.8M | 140 | 19 |
| Tire shops | 39 | #1,049 of 1,530 | 10 | 6.6 | $1.8M | 71 | 6 |
| Real estate agents and brokers | 39 | #1,638 of 2,176 | 32 | 21.1 | Index only | 131 | 28 |
| Real estate | 39 | #1,662 of 2,229 | 39 | 25.7 | Index only | 135 | 45 |
| Child care and preschools | 37 | #1,161 of 1,611 | 10 | 6.6 | $747K | 75 | 18 |
| Spas and skin care | 37 | #1,367 of 1,769 | 22 | 14.5 | $744K | 85 | 5 |
| Auto repair shops | 37 | #1,778 of 2,378 | 47 | 31.0 | $380K | 85 | 37 |
| Auto repair and car care | 35 | #1,849 of 2,401 | 82 | 54.1 | $218K | 81 | 49 |
| Property management | 32 | #755 of 910 | 5 | 3.3 | Index only | 82 | 13 |
| Gas stations | 32 | #1,908 of 2,358 | 37 | 24.4 | $1.2M | 50 | 22 |
| Coffee shops and cafes | 30 | #1,761 of 2,063 | 31 | 20.5 | $2.1M | 56 | 18 |
| Electricians | 26 | #1,041 of 1,160 | 10 | 6.6 | $4.5M | 38 | 20 |
| House cleaning | Not scored | Not scored | 4 | 2.6 | $5.1M | 80 | 18 |
| Optometrists and eye care | Not scored | Not scored | 4 | 2.6 | $5.8M | 186 | Under 3 |
| Pet stores | Not scored | Not scored | 4 | 2.6 | $3.6M | 79 | Under 3 |
| Veterinarians | Not scored | Not scored | 4 | 2.6 | $3.6M | 131 | Under 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 4 | 2.6 | $4M | 100 | 7 |
| Funeral homes | Not scored | Not scored | 3 | 2.0 | $457K | 67 | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 3 | 2.0 | $5.9M | 43 | Under 3 |
| Laundromats | Not scored | Not scored | 2 | 1.3 | $16.4M | Too few | Under 3 |
| Pest control | Not scored | Not scored | 2 | 1.3 | $10.2M | Too few | 3 |
| Roofing and gutters | Not scored | Not scored | 2 | 1.3 | $22.6M | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 1 | 0.7 | Index only | Too few | Under 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 1 | 0.7 | Index only | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 1 | 0.7 | $23.3M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Williams County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $17.8M | $1,177 | 123 |
| Gasoline and other fuels | $43.9M | $2,894 | 112 |
| Food away from home | $64.7M | $4,269 | 105 |
| Groceries | $96.4M | $6,364 | 101 |
| Personal care products and services | $16.4M | $1,080 | 107 |
| Child care and other personal services | $7.5M | $493 | 85 |
| Memberships, classes and admissions | $16.2M | $1,069 | 109 |
| Medical and dental services | $23.3M | $1,537 | 119 |
| Pets | $14.3M | $942 | 104 |
| Clothing, shoes and related services | $32.9M | $2,169 | 106 |
| Vehicle insurance | $26.4M | $1,744 | 89 |
| Home repairs, maintenance and insurance | $45.2M | $2,983 | 99 |
| Lawn care, cleaning and other household services | $20.4M | $1,344 | 95 |
| Rent and homeowner costs | $228.2M | $15,060 | 90 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
Population and households in Williams County
- Population, 2025 estimate
- 41,767+1.4% since 2020
- Households
- 15,154
- Median age
- 33.3
- Homes lived in by their owners
- 53%
- Vehicles per household
- 2.0
- Land area
- 2,078 sq. mi.
- People per square mile
- 19
- Median household income
- $85,595−1.8% vs. 2015–2019, before inflation
- Average household income
- $117,741
- Median home value
- $284,800
- Jobs located here
- 25,521
- Daytime population
- 44,045Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Williams County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the competitors on map listings by name and distance, for any of the 56 business types.
Or open the report at the center of Williams County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
Nearest counties in North Dakota 8
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- Divide County, ND2,167 people
- Mountrail County, ND9,507 people
- Burke County, ND2,156 people
- Dunn County, ND4,040 people
- Billings County, ND1,024 people
- Golden Valley County, ND1,653 people
- Stark County, ND33,302 people
Questions
How fast is Williams County, ND growing?
Population estimates put Williams County at 41,767 people in 2025, up 1.4% since 2020, slower than the U.S. (+3.1%). It has 15,154 households. Against the 2015–2019 survey, median household income fell 1.8%, before inflation.
How much do households in Williams County, ND spend?
Households in Williams County spend about $228.2M a year on rent and homeowner costs, $96.4M on groceries and $64.7M on food away from home. Relative to the U.S., household spending in Williams County runs highest on vehicle maintenance and repairs (an index of 123, where 100 is the U.S. average) and lowest on child care and other personal services (85).
Which business types have the highest market scores in Williams County, ND?
Of the business types scored in Williams County, primary care and pediatric clinics (82), dentists and orthodontists (74) and HVAC and plumbing companies (73) have the highest Groundwork market scores. For primary care and pediatric clinics, that ranks #71 of 1,656 scored counties.
How does Williams County, ND compare with the U.S.?
Median household income in Williams County is $85,595, 6% above the U.S. median of $80,734. The population rose 1.4% from 2020 to 2025, against +3.1% for the U.S. The median home value is $284,800, against $332,700 for the U.S. Against the U.S., map listings per household run highest for electricians (2.6 times the U.S. rate) and lowest for dentists and orthodontists (40% below the U.S. rate).
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. 42 of the 56 business types have a score in Williams County, each ranked against other counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Williams County. It maps the competitors on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
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Screening a site or an acquisition in Williams County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Williams County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.