Health care · County · South Dakota
Medical and dental practices in Union County, SD
Competitor counts, household spending and official business counts for medical and dental practices in Union County, SD, set against other counties and the U.S.
Groundwork market score · out of 100
Score 37 out of 100: Lower middle
Ranked #1,822 of 2,394 scored counties
#16 of 18 scored counties in South Dakota
- Listings
- 92
- 12 chain locations (13%)
- Official establishments
- 49
- +6.5% since 2019
- Household spending a year
- $11.3M
- On medical and dental services · $1,552 a household
- Spending per listing
- $123K
- 19% below the U.S.
- Listings per 10k households
- 125.9
- 49% above the U.S.
- Population, 2025
- 17,402
- +3.3% since 2020
See the medical and dental practices around any address in Union County
The site report maps the medical and dental practices 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 Union 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
Union County scores 37 (lower middle) on the Groundwork market score for medical and dental practices, ranking #1,822 of 2,394 scored counties and #16 of 18 scored counties in South Dakota. That puts it in the bottom quarter of counties.
As of September 2026, map listings count 92 medical and dental practices in Union County. Of those, 12 are chain locations, or 13%, against 11% across the U.S. Per 10,000 households, that is 125.9, 49% above the U.S. rate of 84.5.
Household spending on medical and dental services in Union County comes to about $11.3M a year: $1,552 per household, 20% above the U.S. average. That works out to $123K per practice, 19% below the U.S. figure of $152K.
Official counts show 49 businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Union County in 2023, up 6.5% from 2019. That is one for every 149 households, against one for every 270 across the U.S. Between 2020 and 2025, the population of Union County grew 3.3%, in step with the U.S. (+3.1%).
How Union County compares
The same measures for South Dakota and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the medical and dental practices counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Union County | South Dakota | U.S. |
|---|---|---|---|
| Listings per 10k households | 125.9 | 74.6 | 84.5 |
| Spending per listing | $123K | $188K | $152K |
| Households per official establishment | 149 | 312 | 270 |
| Official establishment growth, 2019–2023 | +6.5% | +12.3% | +1.5% |
| Population growth, 2020–2025 | +3.3% | +5.3% | +3.1% |
| Spending per household on medical and dental services | $1,552 | $1,402 | $1,288 |
| Median household income | $89,636 | $75,081 | $80,734 |
| Groundwork market score | 37 | 77 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 46 → 49+6.5% over the period
- Employees, 2023
- 728
- Annual payroll, 2023
- $76.6M
- One-person businesses, 2023
- 26Businesses with no payroll
- Map listings, September 2026
- 9212 chain locations
- Listings at the U.S. rate for this spending
- 74The 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 offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in Union 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 Union County
- Population, 2025 estimate
- 17,402+3.3% since 2020
- Households
- 7,310
- Median age
- 40.9
- Homes lived in by their owners
- 73%
- Vehicles per household
- 2.2
- Land area
- 462 sq. mi.
- People per square mile
- 37
- Median household income
- $89,636+27.4% vs. 2015–2019, before inflation
- Average household income
- $124,814
- Median home value
- $301,100
- Jobs located here
- 9,648
- Daytime population
- 19,509Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Union 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 medical and dental practices on map listings by name and distance.
Or open the report at the center of Union County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardDoctors, dentists and clinics across South Dakota
Every South Dakota market ranked →The highest-scoring counties in South Dakota for medical and dental practices, numbered among those based in South Dakota, with Union County marked.
Top counties in South Dakota
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Meade County, SD | 82 | 34 | 28.4 | $496K | +2.7% | #74 of 2,394 |
| 2Beadle County, SD | 74 | 33 | 43.8 | $302K | +2.4% | #243 of 2,394 |
| 3Butte County, SD | 73 | 20 | 46.4 | $302K | +5.5% | #263 of 2,394 |
| 4Lake County, SD | 71 | 16 | 33.9 | $413K | −0.2% | #303 of 2,394 |
| 5Roberts County, SD | 69 | 13 | 35.9 | $368K | −0.1% | #366 of 2,394 |
| 6Brookings County, SD | 63 | 88 | 63.8 | $214K | +9.6% | #635 of 2,394 |
| 7Minnehaha County, SD | 62 | 617 | 72.7 | $198K | +7.6% | #682 of 2,394 |
| 8Clay County, SD | 61 | 25 | 45.1 | $284K | +0.2% | #702 of 2,394 |
| 9Oglala Lakota County, SD | 58 | 6 | 20.5 | $523K | −2.3% | #805 of 2,394 |
| 10Lincoln County, SD | 54 | 258 | 92.5 | $174K | +17.5% | #1,024 of 2,394 |
| 16Union County, SD | 37 | 92 | 125.9 | $123K | +3.3% | #1,822 of 2,394 |
Other business types in Union 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
- Doctors, dentists and clinics37
- Dentists and orthodontists46
- Primary care and pediatrics48
- Urgent care and walk-in clinics
- Chiropractors33
- Physical therapy39
- Optometrists and eye care32
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many medical and dental practices are in Union County, SD?
Union County has 92 medical and dental practices on map listings as of September 2026. 12 of them (13%) are chain locations. The listings count every outpatient clinic and practice, and urgent care. Official counts show 49 businesses with payroll classed as offices of physicians, dentists, chiropractors, optometrists and therapists, and urgent care centers in 2023, up 6.5% from 2019. Official counts list 26 one-person businesses without payroll.
How much do households in Union County, SD spend on medical and dental services?
About $11.3M a year, or $1,552 per household. That is 20% above the U.S. average (an index of 120, where 100 is the U.S. average). Spread across the 92 medical and dental practices on map listings, it comes to $123K per practice. It is estimated from the incomes of the 7,310 households in Union County and national spending patterns by income.
How does Union County, SD compare with the U.S. for medical and dental practices?
Union County has 125.9 medical and dental practices per 10,000 households, 49% above the U.S. rate of 84.5. Spending per practice is $123K, 19% below the U.S. figure of $152K. At the national ratio of medical and dental practices to household spending, Union County would have about 74, against 92 on map listings. There is one business with payroll in the industry for every 149 households, against one for every 270 across the U.S. The official count rose 6.5% from 2019 to 2023, against +1.5% for the U.S.
How fast is Union County, SD growing?
Population estimates put Union County at 17,402 people in 2025, up 3.3% since 2020, in step with the U.S. (+3.1%). It has 7,310 households. Median household income in Union County is $89,636, 11% above the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 27.4%, 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. Union County scores 37 for medical and dental practices (lower middle), #1,822 of 2,394 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Union County. It maps the medical and dental practices 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 medical and dental practices · All 56 business types in Union County
Screening a site or an acquisition in Union 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 Union 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.