Real estate · County · Wisconsin
Real estate businesses in Sauk County, WI
Competitor counts, household spending and official business counts for real estate businesses in Sauk County, WI, set against other counties and the U.S.
Groundwork market score · out of 100
Score 27 out of 100: Lower middle
Ranked #2,144 of 2,229 scored counties
#62 of 67 scored counties in Wisconsin
- Listings
- 96
- 14 chain locations (15%)
- Official establishments
- 85
- +84.8% since 2019
- Household spending a year
- $394.3M
- On rent and homeowner costs · $14,089 a household
- Housing spending per listing (U.S. = 100)
- 95
- 5% below the U.S.
- Listings per 10k households
- 34.3
- 11% below the U.S.
- Population, 2025
- 66,652
- +1.3% since 2020
See the real estate businesses around any address in Sauk County
The site report maps the real estate businesses on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Sauk 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
For real estate businesses, Sauk County has a Groundwork market score of 27 (lower middle): #2,144 of 2,229 scored counties and #62 of 67 scored counties in Wisconsin. That puts it in the bottom quarter of counties.
Map listings as of September 2026 show 96 real estate businesses in Sauk County. Chain locations make up 15% of them, against 6% across the U.S. Per 10,000 households, that is 34.3, 11% below the U.S. rate of 38.5.
Household spending on rent and homeowner costs in Sauk County comes to about $394.3M a year: $14,089 per household, 15% below the U.S. average. Housing spending per office is 5% below the U.S. figure. That figure is all rent and homeowner costs, used as a measure of housing demand; it is not money real estate businesses take in.
Official counts show 85 businesses with payroll classed as real estate agents, property managers, mortgage lenders and inspectors in Sauk County in 2023, up 84.8% from 2019. That is one for every 329 households, against one for every 414 across the U.S. Between 2020 and 2025, the population of Sauk County grew 1.3%, slower than the U.S. (+3.1%).
How Sauk County compares
The same measures for Wisconsin and the whole U.S. Housing spending per listing divides all rent and homeowner costs by the listings counted: a measure of housing demand for each business, not money any of them take in, so it is shown against the U.S. (100) only. Households per establishment divides households by the official count.
| Measure | Sauk County | Wisconsin | U.S. |
|---|---|---|---|
| Listings per 10k households | 34.3 | 27.7 | 38.5 |
| Housing spending per listing (U.S. = 100) | 95 | 118 | 100 |
| Households per official establishment | 329 | 660 | 414 |
| Official establishment growth, 2019–2023 | +84.8% | +19.6% | +15.8% |
| Population growth, 2020–2025 | +1.3% | +1.3% | +3.1% |
| Spending per household on rent and homeowner costs | $14,089 | $14,211 | $16,661 |
| Median household income | $79,541 | $77,485 | $80,734 |
| Groundwork market score | 27 | 54 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 46 → 85+84.8% over the period
- Employees, 2023
- 406
- Annual payroll, 2023
- $24.7M
- One-person businesses, 2023
- 239Businesses with no payroll
- Map listings, September 2026
- 9614 chain locations
- Listings at the U.S. rate for this spending
- 91The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 0
- Amount
- $0
SBA-backed loans to businesses classed as real estate agents, property managers, mortgage lenders and inspectors in Sauk County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.
Population and households in Sauk County
- Population, 2025 estimate
- 66,652+1.3% since 2020
- Households
- 27,987
- Median age
- 42.3
- Homes lived in by their owners
- 72%
- Vehicles per household
- 2.0
- Land area
- 832 sq. mi.
- People per square mile
- 79
- Median household income
- $79,541+32.7% vs. 2015–2019, before inflation
- Average household income
- $98,005
- Median home value
- $258,600
- Jobs located here
- 36,015
- Daytime population
- 65,185Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Sauk 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 real estate businesses on map listings by name and distance.
Or open the report at the center of Sauk County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardReal estate across Wisconsin
Every Wisconsin market ranked →The highest-scoring counties in Wisconsin for real estate businesses, numbered among those based in Wisconsin, with Sauk County marked.
Top counties in Wisconsin
| Market | Score | Listings | Per 10k households | Housing spending per listing (U.S. = 100) | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Lafayette County, WI | 74 | 8 | 11.8 | 268 | +5.2% | #126 of 2,229 |
| 2Calumet County, WI | 73 | 23 | 10.8 | 317 | +2.9% | #139 of 2,229 |
| 3Trempealeau County, WI | 72 | 8 | 6.4 | 501 | +1.1% | #152 of 2,229 |
| 4Kewaunee County, WI | 71 | 11 | 13.2 | 248 | +1.0% | #189 of 2,229 |
| 5Pierce County, WI | 70 | 23 | 14.5 | 238 | +3.1% | #207 of 2,229 |
| 6Oconto County, WI | 68 | 19 | 11.3 | 283 | +2.9% | #266 of 2,229 |
| 7Chippewa County, WI | 65 | 39 | 14.4 | 221 | +1.9% | #378 of 2,229 |
| 8Clark County, WI | 64 | 17 | 13.2 | 234 | +1.2% | #406 of 2,229 |
| 9Dodge County, WI | 62 | 51 | 14.2 | 224 | −0.3% | #494 of 2,229 |
| 10Washington County, WI | 58 | 114 | 20.0 | 176 | +1.8% | #667 of 2,229 |
| 62Sauk County, WI | 27 | 96 | 34.3 | 95 | +1.3% | #2,144 of 2,229 |
Other business types in Sauk County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many real estate businesses are in Sauk County, WI?
There are 96 real estate businesses on map listings in Sauk County as of September 2026. 14 of them (15%) are chain locations. The listings count real estate agents and brokers, property managers, mortgage brokers and lenders, and home inspectors. Official counts show 85 businesses with payroll classed as real estate agents, property managers, mortgage lenders and inspectors in 2023, up 84.8% from 2019. Another 239 one-person businesses have no payroll, by official counts.
How much do households in Sauk County, WI spend on rent and homeowner costs?
About $394.3M a year, or $14,089 per household. That is 15% below the U.S. average (an index of 85, where 100 is the U.S. average). For the 96 real estate businesses on map listings, housing spending per office is 5% below the U.S. figure. The spending figure is all rent and homeowner costs, a measure of housing demand, not money real estate businesses take in. It is estimated from the incomes of the 27,987 households in Sauk County and national spending patterns by income.
How does Sauk County, WI compare with the U.S. for real estate businesses?
Sauk County has 34.3 real estate businesses per 10,000 households, 11% below the U.S. rate of 38.5. The index of housing spending per office is 95, where 100 is the U.S. At the national ratio of real estate businesses to household spending, Sauk County would have about 91, against 96 on map listings. There is one business with payroll in the industry for every 329 households, against one for every 414 across the U.S. The official count rose 84.8% from 2019 to 2023, against +15.8% for the U.S.
How fast is Sauk County, WI growing?
Population estimates put Sauk County at 66,652 people in 2025, up 1.3% since 2020, slower than the U.S. (+3.1%). It has 27,987 households. The median household income in Sauk County is $79,541 a year, in line with the U.S. median of $80,734. That rose 32.7% from the 2015–2019 survey, before inflation.
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. Sauk County scores 27 for real estate businesses (lower middle), #2,144 of 2,229 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Sauk County. It maps the real estate businesses 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.
How the score works · Top markets for real estate businesses · All 56 business types in Sauk County
Screening a site or an acquisition in Sauk 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 Sauk 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.