County profile · Missouri
Warren County, MO market data
Population, household spending and competition for 56 business types in Warren County, each scored against other counties.
- Population, 2025
- 39,016
- +9.2% since 2020
- Households
- 13,845
- Median household income
- $81,209
- +35.1% vs. 2015–2019, before inflation
- Median home value
- $260,400
- Jobs located here
- 7,763
- Highest market score
- 92
- Car washes and detailing, #6 of 1,451 scored counties
A site report maps the competitors on map listings around any address in Warren County by name and distance, and the households and spending within reach. Or open the report at the center of Warren 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
An estimated 39,016 people live in Warren County, in 13,845 households. Population estimates show Warren County grew 9.2% from 2020 to 2025, faster than the U.S. (+3.1%). The median household income in Warren County is $81,209 a year, in line with the U.S. median of $80,734. That rose 35.1% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Warren County spend the most on vehicle maintenance and repairs (an index of 134, where 100 is the U.S. average) and the least on child care and other personal services (73).
The highest Groundwork market scores in Warren County are for car washes and detailers (92), coffee shops and cafes (92) and gyms (90). Warren County ranks #6 of 1,451 scored counties for car washes and detailers.
Warren County is part of the St. Louis metro area. For its number of households, Warren County has the most map listings, relative to the U.S., for pet grooming and boarding businesses (twice the U.S. rate) and the fewest for clothing, shoe and laundry businesses (60% below the U.S. rate).
All 56 business types in Warren County
Highest Groundwork market score first. Each score compares Warren 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 |
|---|---|---|---|---|---|---|---|
| Car washes and detailing | 92 | #6 of 1,451 | 5 | 3.6 | $3.6M | 142 | Under 3 |
| Coffee shops and cafes | 92 | #12 of 2,063 | 5 | 3.6 | $11.1M | 300 | Under 3 |
| Gyms | 90 | #10 of 1,792 | 5 | 3.6 | $2.6M | 197 | Under 3 |
| Gyms, studios and classes | 90 | #12 of 2,088 | 10 | 7.2 | $1.3M | 193 | Under 3 |
| Clothing and shoe stores | 90 | #27 of 2,087 | 8 | 5.8 | $3.5M | 275 | Under 3 |
| Tire shops | 89 | #21 of 1,530 | 5 | 3.6 | $3.6M | 142 | Under 3 |
| Fast food and sandwich shops | 89 | #23 of 2,222 | 10 | 7.2 | $5.6M | 182 | 18 |
| Clothing, shoes and laundry | 89 | #29 of 2,210 | 13 | 9.4 | $2.1M | 244 | Under 3 |
| Restaurants and cafes | 89 | #32 of 2,405 | 90 | 65.0 | $617K | 166 | 36 |
| Doctors, dentists and clinics | 87 | #20 of 2,394 | 50 | 36.1 | $399K | 261 | 20 |
| Sit-down restaurants | 85 | #65 of 2,405 | 53 | 38.3 | $1M | 158 | 17 |
| Optometrists and eye care | 84 | #24 of 1,302 | 5 | 3.6 | $4M | 127 | Under 3 |
| Auto repair and car care | 84 | #67 of 2,401 | 52 | 37.6 | $343K | 128 | 17 |
| Martial arts and dance studios | 82 | #30 of 1,334 | 5 | 3.6 | $2.6M | 127 | Under 3 |
| Dentists and orthodontists | 81 | #64 of 1,886 | 13 | 9.4 | $1.5M | 156 | 7 |
| Grocery and convenience stores | 81 | #173 of 2,402 | 24 | 17.3 | $3.6M | 105 | 6 |
| Chiropractors | 80 | #61 of 1,490 | 7 | 5.1 | $2.8M | 119 | Under 3 |
| Salons, barbers and spas | 80 | #66 of 2,385 | 30 | 21.7 | $471K | 221 | 11 |
| Hair salons | 80 | #76 of 2,339 | 19 | 13.7 | $743K | 173 | 7 |
| Convenience stores | 79 | #202 of 2,261 | 11 | 7.9 | $7.8M | 99 | Under 3 |
| Auto repair shops | 77 | #178 of 2,378 | 32 | 23.1 | $557K | 125 | 15 |
| Physical therapy | 76 | #116 of 1,422 | 5 | 3.6 | $4M | 166 | 6 |
| Child care and preschools | 75 | #167 of 1,611 | 6 | 4.3 | $981K | 98 | 4 |
| Gas stations | 74 | #308 of 2,358 | 20 | 14.4 | $2.2M | 94 | 14 |
| Pet businesses | 73 | #207 of 2,200 | 16 | 11.6 | $758K | 86 | Under 3 |
| Pizza | 73 | #234 of 2,090 | 13 | 9.4 | $4.3M | 84 | 18 |
| Lawn, cleaning and pest control | 63 | #387 of 1,771 | 8 | 5.8 | $2.2M | 130 | 25 |
| Real estate | 63 | #473 of 2,229 | 31 | 22.4 | Index only | 148 | 12 |
| Grocery stores | 63 | #599 of 2,070 | 10 | 7.2 | $8.6M | 92 | 6 |
| Real estate agents and brokers | 56 | #755 of 2,176 | 26 | 18.8 | Index only | 140 | 12 |
| Home repair trades | 54 | #858 of 2,057 | 18 | 13.0 | $2.1M | 88 | 28 |
| HVAC and plumbing | 53 | #757 of 1,707 | 10 | 7.2 | $3.9M | 81 | 14 |
| Landscaping and lawn care | 52 | #659 of 1,493 | 7 | 5.1 | $2.5M | 85 | 18 |
| Roofing and gutters | 48 | #643 of 1,177 | 6 | 4.3 | $6.4M | 76 | 4 |
| Pet grooming and boarding | 48 | #797 of 1,461 | 10 | 7.2 | $1.2M | 48 | Under 3 |
| Insurance agencies | 41 | #1,430 of 2,272 | 25 | 18.1 | $1.1M | 86 | 17 |
| Collision repair and body shops | Not scored | Not scored | 4 | 2.9 | $4.5M | 145 | 6 |
| Spas and skin care | Not scored | Not scored | 4 | 2.9 | $3.5M | 403 | Under 3 |
| Bakeries and dessert shops | Not scored | Not scored | 3 | 2.2 | $18.5M | 447 | Under 3 |
| Barbershops | Not scored | Not scored | 3 | 2.2 | $4.7M | 250 | Under 3 |
| Nail salons | Not scored | Not scored | 3 | 2.2 | $4.7M | 282 | Under 3 |
| Electricians | Not scored | Not scored | 2 | 1.4 | $19.3M | Too few | 10 |
| Funeral homes | Not scored | Not scored | 2 | 1.4 | $995K | Too few | 3 |
| Laundromats | Not scored | Not scored | 2 | 1.4 | $14M | Too few | Under 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 2 | 1.4 | Index only | Too few | Under 3 |
| Property management | Not scored | Not scored | 2 | 1.4 | Index only | Too few | Under 3 |
| Veterinarians | Not scored | Not scored | 2 | 1.4 | $6.1M | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 1 | 0.7 | Index only | Too few | Under 3 |
| House cleaning | Not scored | Not scored | 1 | 0.7 | $17.4M | Too few | 7 |
| Pet stores | Not scored | Not scored | 1 | 0.7 | $12.1M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Oil change and quick lube | 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 |
| Primary care and pediatrics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 7 |
| Urgent care and walk-in clinics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Warren 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 | $17.8M | $1,288 | 134 |
| Gasoline and other fuels | $45M | $3,247 | 125 |
| Food away from home | $55.5M | $4,011 | 99 |
| Groceries | $85.5M | $6,177 | 98 |
| Personal care products and services | $14.1M | $1,020 | 102 |
| Child care and other personal services | $5.9M | $425 | 73 |
| Memberships, classes and admissions | $12.8M | $925 | 94 |
| Medical and dental services | $19.9M | $1,440 | 112 |
| Pets | $12.1M | $876 | 96 |
| Clothing, shoes and related services | $27.9M | $2,017 | 98 |
| Vehicle insurance | $27.1M | $1,958 | 100 |
| Home repairs, maintenance and insurance | $38.6M | $2,788 | 92 |
| Lawn care, cleaning and other household services | $17.4M | $1,259 | 89 |
| Rent and homeowner costs | $198.7M | $14,354 | 86 |
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 Warren County
- Population, 2025 estimate
- 39,016+9.2% since 2020
- Households
- 13,845
- Median age
- 42.4
- Homes lived in by their owners
- 80%
- Vehicles per household
- 2.2
- Land area
- 429 sq. mi.
- People per square mile
- 87
- Median household income
- $81,209+35.1% vs. 2015–2019, before inflation
- Average household income
- $99,746
- Median home value
- $260,400
- Jobs located here
- 7,763
- Daytime population
- 26,353Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Warren 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 Warren County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
Nearest counties in Missouri 8
- Lincoln County, MO63,057 people
- Montgomery County, MO11,426 people
- St. Charles County, MO414,535 people
- Franklin County, MO105,950 people
- Gasconade County, MO14,746 people
- St. Louis County, MO995,569 people
- Pike County, MO17,711 people
- Jefferson County, MO229,458 people
Questions
How fast is Warren County, MO growing?
Population estimates put Warren County at 39,016 people in 2025, up 9.2% since 2020, faster than the U.S. (+3.1%). It has 13,845 households. Against the 2015–2019 survey, median household income rose 35.1%, before inflation.
How much do households in Warren County, MO spend?
Households in Warren County spend about $198.7M a year on rent and homeowner costs, $85.5M on groceries and $55.5M on food away from home. Relative to the U.S., household spending in Warren County runs highest on vehicle maintenance and repairs (an index of 134, where 100 is the U.S. average) and lowest on child care and other personal services (73).
Which business types have the highest market scores in Warren County, MO?
Of the business types scored in Warren County, car washes and detailers (92), coffee shops and cafes (92) and gyms (90) have the highest Groundwork market scores. For car washes and detailers, that ranks #6 of 1,451 scored counties.
How does Warren County, MO compare with the U.S.?
Median household income in Warren County is $81,209, in line with the U.S. median of $80,734. The population rose 9.2% from 2020 to 2025, against +3.1% for the U.S. The median home value is $260,400, against $332,700 for the U.S. Against the U.S., map listings per household run highest for pet grooming and boarding businesses (twice the U.S. rate) and lowest for clothing, shoe and laundry businesses (60% 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. 36 of the 56 business types have a score in Warren 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 Warren 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 Warren 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 Warren 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.