County profile · Ohio
Mercer County, OH market data
How Mercer County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 42,737
- +0.5% since 2020
- Households
- 16,408
- Median household income
- $76,782
- +22.0% vs. 2015–2019, before inflation
- Median home value
- $210,600
- Jobs located here
- 19,998
- Highest market score
- 76
- Dentists and orthodontists, #124 of 1,886 scored counties
A site report maps the competitors on map listings around any address in Mercer County by name and distance, and the households and spending within reach. Or open the report at the center of Mercer 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
Mercer County has an estimated 42,737 people and 16,408 households. Population estimates put the population change in Mercer County from 2020 to 2025 at +0.5%, slower than the U.S. (+3.1%). Median household income in Mercer County is $76,782, 5% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 22.0%, before inflation.
Relative to the U.S., household spending in Mercer 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 (62).
Of the business types scored in Mercer County, dentists and orthodontists (76), tire shops (70) and nail salons (64) have the highest Groundwork market scores. For dentists and orthodontists, that ranks #124 of 1,886 scored counties.
Mercer County is part of the Celina area. Against the U.S., map listings per household run highest for veterinarians (2.4 times the U.S. rate) and lowest for real estate businesses (57% below the U.S. rate).
All 56 business types in Mercer County
Highest Groundwork market score first. Each score compares Mercer 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 |
|---|---|---|---|---|---|---|---|
| Dentists and orthodontists | 76 | #124 of 1,886 | 10 | 6.1 | $2.2M | 228 | 8 |
| Tire shops | 70 | #274 of 1,530 | 6 | 3.7 | $3.2M | 129 | Under 3 |
| Nail salons | 64 | #288 of 1,328 | 6 | 3.7 | $2.6M | 157 | Under 3 |
| Child care and preschools | 61 | #509 of 1,611 | 5 | 3.0 | $1.2M | 117 | 6 |
| Real estate agents and brokers | 61 | #521 of 2,176 | 22 | 13.4 | Index only | 186 | 5 |
| Real estate | 61 | #543 of 2,229 | 27 | 16.5 | Index only | 191 | 8 |
| Barbershops | 60 | #448 of 1,356 | 6 | 3.7 | $2.6M | 139 | Under 3 |
| Coffee shops and cafes | 60 | #592 of 2,063 | 11 | 6.7 | $5.6M | 151 | 9 |
| Convenience stores | 60 | #745 of 2,261 | 10 | 6.1 | $9.8M | 124 | 6 |
| Spas and skin care | 58 | #584 of 1,769 | 13 | 7.9 | $1.2M | 138 | 3 |
| Primary care and pediatrics | 58 | #587 of 1,656 | 12 | 7.3 | $1.9M | 105 | 17 |
| Pizza | 53 | #892 of 2,090 | 11 | 6.7 | $5.6M | 110 | 35 |
| Grocery stores | 52 | #938 of 2,070 | 11 | 6.7 | $8.9M | 95 | 7 |
| Doctors, dentists and clinics | 52 | #1,095 of 2,394 | 109 | 66.4 | $205K | 135 | 44 |
| Physical therapy | 51 | #691 of 1,422 | 9 | 5.5 | $2.5M | 103 | 7 |
| Hair salons | 51 | #1,121 of 2,339 | 36 | 21.9 | $437K | 102 | 8 |
| Grocery and convenience stores | 51 | #1,159 of 2,402 | 31 | 18.9 | $3.1M | 93 | 13 |
| Salons, barbers and spas | 50 | #1,174 of 2,385 | 62 | 37.8 | $254K | 119 | 14 |
| Fast food and sandwich shops | 49 | #1,171 of 2,222 | 20 | 12.2 | $3.1M | 101 | 35 |
| Lawn, cleaning and pest control | 48 | #924 of 1,771 | 12 | 7.3 | $1.6M | 97 | 19 |
| Bakeries and dessert shops | 48 | #1,003 of 1,889 | 15 | 9.1 | $4.1M | 99 | 9 |
| Funeral homes | 47 | #788 of 1,472 | 6 | 3.7 | $438K | 64 | 4 |
| Gyms, studios and classes | 47 | #1,234 of 2,088 | 27 | 16.5 | $490K | 74 | 4 |
| Gyms | 46 | #1,068 of 1,792 | 14 | 8.5 | $945K | 73 | 4 |
| Auto repair shops | 46 | #1,372 of 2,378 | 41 | 25.0 | $473K | 106 | 33 |
| Pet grooming and boarding | 45 | #844 of 1,461 | 8 | 4.9 | $1.7M | 65 | 3 |
| Chiropractors | 45 | #883 of 1,490 | 11 | 6.7 | $2M | 85 | 6 |
| Clothing, shoes and laundry | 45 | #1,303 of 2,210 | 30 | 18.3 | $1M | 117 | 14 |
| Restaurants and cafes | 45 | #1,384 of 2,405 | 153 | 93.2 | $402K | 108 | 81 |
| Optometrists and eye care | 44 | #813 of 1,302 | 7 | 4.3 | $3.2M | 102 | 6 |
| Sit-down restaurants | 44 | #1,450 of 2,405 | 83 | 50.6 | $741K | 112 | 36 |
| Auto repair and car care | 44 | #1,463 of 2,401 | 73 | 44.5 | $266K | 99 | 42 |
| Gas stations | 43 | #1,484 of 2,358 | 33 | 20.1 | $1.5M | 63 | 21 |
| Landscaping and lawn care | 42 | #939 of 1,493 | 9 | 5.5 | $2.2M | 74 | 13 |
| Clothing and shoe stores | 42 | #1,329 of 2,087 | 23 | 14.0 | $1.3M | 106 | 14 |
| Collision repair and body shops | 41 | #871 of 1,327 | 7 | 4.3 | $2.8M | 90 | 10 |
| Car washes and detailing | 41 | #956 of 1,451 | 9 | 5.5 | $2.2M | 86 | 7 |
| Home repair trades | 36 | #1,651 of 2,057 | 21 | 12.8 | $2M | 84 | 34 |
| Martial arts and dance studios | 34 | #1,060 of 1,334 | 9 | 5.5 | $1.5M | 73 | Under 3 |
| Insurance agencies | 34 | #1,676 of 2,272 | 25 | 15.2 | $1.2M | 97 | 19 |
| HVAC and plumbing | 29 | #1,502 of 1,707 | 13 | 7.9 | $3.3M | 69 | 18 |
| Pet businesses | 27 | #1,966 of 2,200 | 29 | 17.7 | $456K | 52 | 12 |
| Veterinarians | 20 | #1,386 of 1,485 | 13 | 7.9 | $1M | 37 | 9 |
| Electricians | Not scored | Not scored | 4 | 2.4 | $10.7M | 89 | 13 |
| Roofing and gutters | Not scored | Not scored | 4 | 2.4 | $10.7M | 126 | 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 4 | 2.4 | $3.3M | 81 | 4 |
| House cleaning | Not scored | Not scored | 3 | 1.8 | $6.5M | 101 | 6 |
| Laundromats | Not scored | Not scored | 3 | 1.8 | $10.3M | 82 | Under 3 |
| Property management | Not scored | Not scored | 3 | 1.8 | Index only | 134 | Under 3 |
| Pet stores | Not scored | Not scored | 2 | 1.2 | $6.6M | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 2 | 1.2 | $11.2M | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 1 | 0.6 | Index only | Too few | Under 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 1 | 0.6 | Index only | Too few | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 1 | 0.6 | $19.4M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Pest control | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Mercer 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 | $19.4M | $1,182 | 123 |
| Gasoline and other fuels | $50M | $3,045 | 117 |
| Food away from home | $61.5M | $3,749 | 92 |
| Groceries | $97.6M | $5,949 | 94 |
| Personal care products and services | $15.7M | $960 | 96 |
| Child care and other personal services | $5.9M | $358 | 62 |
| Memberships, classes and admissions | $13.2M | $806 | 82 |
| Medical and dental services | $22.4M | $1,364 | 106 |
| Pets | $13.2M | $806 | 89 |
| Clothing, shoes and related services | $30.9M | $1,881 | 92 |
| Vehicle insurance | $30.5M | $1,857 | 95 |
| Home repairs, maintenance and insurance | $42.7M | $2,605 | 86 |
| Lawn care, cleaning and other household services | $19.5M | $1,186 | 84 |
| Rent and homeowner costs | $223.7M | $13,631 | 82 |
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 Mercer County
- Population, 2025 estimate
- 42,737+0.5% since 2020
- Households
- 16,408
- Median age
- 39.9
- Homes lived in by their owners
- 80%
- Vehicles per household
- 2.1
- Land area
- 462 sq. mi.
- People per square mile
- 92
- Median household income
- $76,782+22.0% vs. 2015–2019, before inflation
- Average household income
- $91,265
- Median home value
- $210,600
- Jobs located here
- 19,998
- Daytime population
- 40,314Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Mercer 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 Mercer County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
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Questions
How fast is Mercer County, OH growing?
Population estimates put Mercer County at 42,737 people in 2025, up 0.5% since 2020, slower than the U.S. (+3.1%). It has 16,408 households. Median household income rose 22.0% from the 2015–2019 survey, before inflation.
How much do households in Mercer County, OH spend?
Households in Mercer County spend about $223.7M a year on rent and homeowner costs, $97.6M on groceries and $61.5M on food away from home. Set against the U.S., households in Mercer 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 (62).
Which business types have the highest market scores in Mercer County, OH?
The highest Groundwork market scores in Mercer County are for dentists and orthodontists (76), tire shops (70) and nail salons (64). Mercer County ranks #124 of 1,886 scored counties for dentists and orthodontists.
How does Mercer County, OH compare with the U.S.?
The median household income in Mercer County is $76,782 a year, 5% below the U.S. median of $80,734. The population rose 0.5% from 2020 to 2025, against +3.1% for the U.S. The median home value is $210,600, against $332,700 for the U.S. For its number of households, Mercer County has the most map listings, relative to the U.S., for veterinarians (2.4 times the U.S. rate) and the fewest for real estate businesses (57% 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. 43 of the 56 business types have a score in Mercer 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 Mercer 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 Mercer 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 Mercer 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.