Health care · County · Iowa
Dentists and orthodontists in Marion County, IA
Competitor counts, household spending and official business counts for dentists and orthodontists in Marion County, IA, set against other counties and the U.S.
Groundwork market score · out of 100
Score 48 out of 100: Lower middle
Ranked #1,027 of 1,886 scored counties
#34 of 47 scored counties in Iowa
- Listings
- 22
- 0 chain locations (0%)
- Official establishments
- 9
- Businesses with payroll, 2023
- Household spending a year
- $19M
- On medical and dental services · $1,430 a household
- Spending per listing
- $866K
- 12% below the U.S.
- Listings per 10k households
- 16.5
- 26% above the U.S.
- Population, 2025
- 34,192
- +2.3% since 2020
See the dentists and orthodontists around any address in Marion County
The site report maps the dentists and orthodontists 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 Marion 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
At $1,430 per household (11% above the U.S. average), households in Marion County spend about $19M a year on medical and dental services. That is about $866K of household spending for each practice on map listings, 12% below the U.S. figure of $984K. The spending figure covers all medical and dental services, not only dentists and orthodontists.
There are 22 dentists and orthodontists on map listings in Marion County as of September 2026. None of them are chain locations, against 12% across the U.S. That is 16.5 per 10,000 households, 26% above the U.S. rate of 13.1.
In 2023, official counts showed 9 businesses with payroll in Marion County classed as offices of dentists. That is one for every 1,480 households, against one for every 952 across the U.S.
Population estimates put the population change in Marion County from 2020 to 2025 at +2.3%, slower than the U.S. (+3.1%). Marion County scores 48 (lower middle) on the Groundwork market score for dentists and orthodontists, ranking #1,027 of 1,886 scored counties and #34 of 47 scored counties in Iowa.
How Marion County compares
The same measures for Iowa and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the dentists and orthodontists 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 | Marion County | Iowa | U.S. |
|---|---|---|---|
| Listings per 10k households | 16.5 | 9.5 | 13.1 |
| Spending per listing | $866K | $1.5M | $984K |
| Households per official establishment | 1,480 | 1,277 | 952 |
| Official establishment growth, 2019–2023 | n/a | −0.6% | −0.5% |
| Population growth, 2020–2025 | +2.3% | +1.5% | +3.1% |
| Spending per household on medical and dental services | $1,430 | $1,412 | $1,288 |
| Median household income | $78,680 | $75,059 | $80,734 |
| Groundwork market score | 48 | 79 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 9 → 9
- Employees, 2023
- 89
- Annual payroll, 2023
- $5.5M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 220 chain locations
- Listings at the U.S. rate for this spending
- 19The 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 dentists in Marion 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 Marion County
- Population, 2025 estimate
- 34,192+2.3% since 2020
- Households
- 13,316
- Median age
- 40.1
- Homes lived in by their owners
- 78%
- Vehicles per household
- 2.2
- Land area
- 555 sq. mi.
- People per square mile
- 61
- Median household income
- $78,680+28.9% vs. 2015–2019, before inflation
- Average household income
- $100,547
- Median home value
- $233,000
- Jobs located here
- 19,073
- Daytime population
- 36,093Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Marion 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 dentists and orthodontists on map listings by name and distance.
Or open the report at the center of Marion County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardDentists and orthodontists across Iowa
Every Iowa market ranked →The highest-scoring counties in Iowa for dentists and orthodontists, numbered among those based in Iowa, with Marion County marked.
Top counties in Iowa
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Warren County, IA | 86 | 16 | 7.7 | $2M | +9.0% | #19 of 1,886 |
| 2Plymouth County, IA | 75 | 6 | 5.8 | $2.5M | 0.0% | #141 of 1,886 |
| 3Delaware County, IA | 75 | 5 | 6.8 | $2.1M | +1.3% | #148 of 1,886 |
| 4Dallas County, IA | 74 | 45 | 10.6 | $1.6M | +17.8% | #183 of 1,886 |
| 5Jasper County, IA | 73 | 9 | 6.0 | $2.3M | +0.9% | #193 of 1,886 |
| 6Mahaska County, IA | 69 | 5 | 5.7 | $2.3M | −1.2% | #278 of 1,886 |
| 7Boone County, IA | 69 | 8 | 7.3 | $2M | +0.4% | #282 of 1,886 |
| 8Story County, IA | 69 | 34 | 8.7 | $1.6M | +2.7% | #295 of 1,886 |
| 9Fayette County, IA | 68 | 5 | 6.0 | $2.1M | −2.1% | #302 of 1,886 |
| 10Jones County, IA | 67 | 7 | 8.5 | $1.6M | +2.9% | #345 of 1,886 |
| 34Marion County, IA | 48 | 22 | 16.5 | $866K | +2.3% | #1,027 of 1,886 |
Other business types in Marion 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 clinics53
- Dentists and orthodontists48
- Primary care and pediatrics79
- Urgent care and walk-in clinics
- Chiropractors31
- Physical therapy54
- Optometrists and eye care62
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many dentists and orthodontists are in Marion County, IA?
As of September 2026, map listings count 22 dentists and orthodontists in Marion County. None of them are chain locations. The listings count dental practices, orthodontists included. Official counts show 9 businesses with payroll classed as offices of dentists in 2023.
How much do households in Marion County, IA spend on medical and dental services?
About $19M a year, or $1,430 per household. That is 11% above the U.S. average (an index of 111, where 100 is the U.S. average). Spread across the 22 dentists and orthodontists on map listings, it comes to $866K per practice. That spending covers all medical and dental services, which dentists and orthodontists share with other businesses in the trade. It is estimated from the incomes of the 13,316 households in Marion County and national spending patterns by income.
How does Marion County, IA compare with the U.S. for dentists and orthodontists?
Marion County has 16.5 dentists and orthodontists per 10,000 households, 26% above the U.S. rate of 13.1. Spending per practice is $866K, 12% below the U.S. figure of $984K. At the U.S. ratio of dentists and orthodontists to household spending, Marion County would have about 19, against 22 on map listings. There is one business with payroll in the industry for every 1,480 households, against one for every 952 across the U.S.
How fast is Marion County, IA growing?
Population estimates put Marion County at 34,192 people in 2025, up 2.3% since 2020, slower than the U.S. (+3.1%). It has 13,316 households. Median household income in Marion County is $78,680, 3% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 28.9%, 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. Marion County scores 48 for dentists and orthodontists (lower middle), #1,027 of 1,886 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Marion County. It maps the dentists and orthodontists 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 dentists and orthodontists · All 56 business types in Marion County
Screening a site or an acquisition in Marion 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 Marion 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.