County profile · Ohio
Darke County, OH market data
How Darke County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 51,520
- −0.7% since 2020
- Households
- 21,297
- Median household income
- $64,486
- +15.9% vs. 2015–2019, before inflation
- Median home value
- $173,200
- Jobs located here
- 17,845
- Highest market score
- 72
- Physical therapy, #180 of 1,422 scored counties
A site report maps the competitors on map listings around any address in Darke County by name and distance, and the households and spending within reach. Or open the report at the center of Darke 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
Darke County has an estimated 51,520 people and 21,297 households. Population estimates show Darke County declined 0.7% from 2020 to 2025, against +3.1% for the U.S. Median household income in Darke County is $64,486, 20% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 15.9%, before inflation.
Relative to the U.S., household spending in Darke County runs highest on vehicle maintenance and repairs (an index of 120, where 100 is the U.S. average) and lowest on child care and other personal services (59).
Of the business types scored in Darke County, physical therapy clinics (72), collision repair and body shops (70) and dentists and orthodontists (69) have the highest Groundwork market scores. For physical therapy clinics, that ranks #180 of 1,422 scored counties.
Darke County is part of the Greenville area. Against the U.S., map listings per household run highest for pet grooming and boarding businesses (56% above the U.S. rate) and lowest for real estate businesses (65% below the U.S. rate).
All 56 business types in Darke County
Highest Groundwork market score first. Each score compares Darke 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 |
|---|---|---|---|---|---|---|---|
| Physical therapy | 72 | #180 of 1,422 | 5 | 2.3 | $5.6M | 232 | 5 |
| Collision repair and body shops | 70 | #207 of 1,327 | 5 | 2.3 | $4.9M | 159 | 5 |
| Dentists and orthodontists | 69 | #288 of 1,886 | 15 | 7.0 | $1.9M | 189 | 10 |
| Spas and skin care | 67 | #292 of 1,769 | 10 | 4.7 | $1.9M | 221 | 3 |
| Primary care and pediatrics | 67 | #317 of 1,656 | 11 | 5.2 | $2.5M | 142 | 13 |
| Convenience stores | 65 | #572 of 2,261 | 13 | 6.1 | $9.4M | 119 | 3 |
| Gyms, studios and classes | 64 | #449 of 2,088 | 20 | 9.4 | $800K | 121 | 4 |
| Barbershops | 63 | #377 of 1,356 | 5 | 2.3 | $3.9M | 205 | Under 3 |
| Fast food and sandwich shops | 61 | #688 of 2,222 | 21 | 9.9 | $3.6M | 117 | 29 |
| Sit-down restaurants | 61 | #701 of 2,405 | 84 | 39.4 | $892K | 134 | 25 |
| Restaurants and cafes | 61 | #709 of 2,405 | 157 | 73.7 | $477K | 129 | 66 |
| Martial arts and dance studios | 60 | #367 of 1,334 | 5 | 2.3 | $3.2M | 159 | Under 3 |
| Car washes and detailing | 60 | #455 of 1,451 | 8 | 3.8 | $3.1M | 121 | 4 |
| Doctors, dentists and clinics | 59 | #784 of 2,394 | 111 | 52.1 | $251K | 165 | 39 |
| Gyms | 58 | #606 of 1,792 | 12 | 5.6 | $1.3M | 102 | 4 |
| Gas stations | 57 | #867 of 2,358 | 27 | 12.7 | $2.3M | 98 | 21 |
| Salons, barbers and spas | 56 | #824 of 2,385 | 58 | 27.2 | $333K | 157 | 16 |
| Coffee shops and cafes | 55 | #795 of 2,063 | 12 | 5.6 | $6.2M | 169 | 12 |
| Grocery and convenience stores | 55 | #977 of 2,402 | 38 | 17.8 | $3.2M | 94 | 11 |
| Funeral homes | 53 | #641 of 1,472 | 8 | 3.8 | $441K | 65 | 3 |
| Lawn, cleaning and pest control | 53 | #738 of 1,771 | 10 | 4.7 | $2.4M | 144 | 26 |
| Real estate agents and brokers | 53 | #864 of 2,176 | 24 | 11.3 | Index only | 214 | 11 |
| Grocery stores | 53 | #903 of 2,070 | 12 | 5.6 | $10.1M | 109 | 8 |
| Real estate | 52 | #964 of 2,229 | 29 | 13.6 | Index only | 223 | 18 |
| Bakeries and dessert shops | 48 | #984 of 1,889 | 15 | 7.0 | $5M | 121 | 12 |
| Clothing and shoe stores | 48 | #1,116 of 2,087 | 24 | 11.3 | $1.6M | 126 | 13 |
| Pizza | 47 | #1,153 of 2,090 | 20 | 9.4 | $3.7M | 74 | 29 |
| Landscaping and lawn care | 46 | #813 of 1,493 | 8 | 3.8 | $3M | 104 | 19 |
| Child care and preschools | 45 | #960 of 1,611 | 10 | 4.7 | $726K | 72 | 6 |
| Clothing, shoes and laundry | 45 | #1,304 of 2,210 | 38 | 17.8 | $1M | 115 | 13 |
| Hair salons | 45 | #1,421 of 2,339 | 41 | 19.3 | $471K | 110 | 13 |
| Roofing and gutters | 42 | #759 of 1,177 | 6 | 2.8 | $8.9M | 106 | 5 |
| HVAC and plumbing | 42 | #1,131 of 1,707 | 12 | 5.6 | $4.5M | 94 | 18 |
| Auto repair and car care | 42 | #1,550 of 2,401 | 96 | 45.1 | $255K | 95 | 41 |
| Chiropractors | 41 | #987 of 1,490 | 14 | 6.6 | $2M | 83 | 7 |
| Auto repair shops | 41 | #1,592 of 2,378 | 58 | 27.2 | $421K | 95 | 31 |
| Insurance agencies | 37 | #1,565 of 2,272 | 28 | 13.1 | $1.4M | 109 | 21 |
| Home repair trades | 34 | #1,722 of 2,057 | 26 | 12.2 | $2.1M | 85 | 38 |
| Pet businesses | 32 | #1,810 of 2,200 | 26 | 12.2 | $622K | 71 | 14 |
| Electricians | 25 | #1,046 of 1,160 | 8 | 3.8 | $6.7M | 56 | 15 |
| Veterinarians | 25 | #1,306 of 1,485 | 10 | 4.7 | $1.6M | 59 | 8 |
| Pet grooming and boarding | 23 | #1,318 of 1,461 | 12 | 5.6 | $1.3M | 53 | 6 |
| Laundromats | 15 | #748 of 785 | 8 | 3.8 | $4.8M | 38 | Under 3 |
| Pet stores | Not scored | Not scored | 4 | 1.9 | $4M | 89 | Under 3 |
| Tire shops | Not scored | Not scored | 4 | 1.9 | $6.1M | 244 | 4 |
| Optometrists and eye care | Not scored | Not scored | 3 | 1.4 | $9.3M | 296 | 4 |
| Property management | Not scored | Not scored | 3 | 1.4 | Index only | 168 | Under 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 3 | 1.4 | $5.3M | 131 | 4 |
| Nail salons | Not scored | Not scored | 2 | 0.9 | $9.7M | Too few | Under 3 |
| Pest control | Not scored | Not scored | 2 | 0.9 | $12.1M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 1 | 0.5 | $38.5M | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 1 | 0.5 | Index only | Too few | Under 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 1 | 0.5 | Index only | Too few | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 1 | 0.5 | $24.4M | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 1 | 0.5 | $27.8M | Too few | Under 3 |
| House cleaning | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 7 |
Household spending in Darke 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 | $24.4M | $1,148 | 120 |
| Gasoline and other fuels | $63M | $2,956 | 114 |
| Food away from home | $75M | $3,520 | 86 |
| Groceries | $121.7M | $5,712 | 90 |
| Personal care products and services | $19.3M | $908 | 90 |
| Child care and other personal services | $7.3M | $341 | 59 |
| Memberships, classes and admissions | $16M | $751 | 76 |
| Medical and dental services | $27.8M | $1,308 | 102 |
| Pets | $16.2M | $759 | 84 |
| Clothing, shoes and related services | $38.5M | $1,808 | 88 |
| Vehicle insurance | $38.3M | $1,799 | 92 |
| Home repairs, maintenance and insurance | $53.6M | $2,518 | 83 |
| Lawn care, cleaning and other household services | $24.3M | $1,139 | 81 |
| Rent and homeowner costs | $279.7M | $13,134 | 79 |
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 Darke County
- Population, 2025 estimate
- 51,520−0.7% since 2020
- Households
- 21,297
- Median age
- 41.9
- Homes lived in by their owners
- 72%
- Vehicles per household
- 2.0
- Land area
- 598 sq. mi.
- People per square mile
- 86
- Median household income
- $64,486+15.9% vs. 2015–2019, before inflation
- Average household income
- $83,884
- Median home value
- $173,200
- Jobs located here
- 17,845
- Daytime population
- 43,574Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Darke 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 Darke 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 Darke County, OH growing?
Population estimates put Darke County at 51,520 people in 2025, down 0.7% since 2020, against +3.1% for the U.S. It has 21,297 households. Median household income rose 15.9% from the 2015–2019 survey, before inflation.
How much do households in Darke County, OH spend?
Households in Darke County spend about $279.7M a year on rent and homeowner costs, $121.7M on groceries and $75M on food away from home. Set against the U.S., households in Darke County spend the most on vehicle maintenance and repairs (an index of 120, where 100 is the U.S. average) and the least on child care and other personal services (59).
Which business types have the highest market scores in Darke County, OH?
The highest Groundwork market scores in Darke County are for physical therapy clinics (72), collision repair and body shops (70) and dentists and orthodontists (69). Darke County ranks #180 of 1,422 scored counties for physical therapy clinics.
How does Darke County, OH compare with the U.S.?
The median household income in Darke County is $64,486 a year, 20% below the U.S. median of $80,734. The population fell 0.7% from 2020 to 2025, against +3.1% for the U.S. The median home value is $173,200, against $332,700 for the U.S. For its number of households, Darke County has the most map listings, relative to the U.S., for pet grooming and boarding businesses (56% above the U.S. rate) and the fewest for real estate businesses (65% 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 Darke 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 Darke 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 Darke 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 Darke 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.