County profile · Illinois
Monroe County, IL market data
Population, household spending and competition for 56 business types in Monroe County, each scored against other counties.
- Population, 2025
- 34,840
- −0.3% since 2020
- Households
- 13,851
- Median household income
- $102,880
- +20.0% vs. 2015–2019, before inflation
- Median home value
- $282,100
- Jobs located here
- 9,117
- Highest market score
- 79
- Grocery and convenience stores, #204 of 2,402 scored counties
A site report maps the competitors on map listings around any address in Monroe County by name and distance, and the households and spending within reach. Or open the report at the center of Monroe 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 34,840 people live in Monroe County, in 13,851 households. Population estimates put the population change in Monroe County from 2020 to 2025 at −0.3%, against +3.1% for the U.S. The median household income in Monroe County is $102,880 a year, 27% above the U.S. median of $80,734. That rose 20.0% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Monroe County spend the most on vehicle maintenance and repairs (an index of 131, where 100 is the U.S. average) and the least on vehicle insurance (94).
The highest Groundwork market scores in Monroe County are for grocery and convenience stores (79), grocery stores (79) and clothing and shoe stores (72). Monroe County ranks #204 of 2,402 scored counties for grocery and convenience stores.
Monroe County is part of the St. Louis metro area. For its number of households, Monroe County has the most map listings, relative to the U.S., for chiropractors (2.5 times the U.S. rate) and the fewest for real estate businesses (38% below the U.S. rate).
All 56 business types in Monroe County
Highest Groundwork market score first. Each score compares Monroe 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 |
|---|---|---|---|---|---|---|---|
| Grocery and convenience stores | 79 | #204 of 2,402 | 22 | 15.9 | $4.2M | 124 | 4 |
| Grocery stores | 79 | #208 of 2,070 | 5 | 3.6 | $18.5M | 199 | 4 |
| Clothing and shoe stores | 72 | #326 of 2,087 | 15 | 10.8 | $2.1M | 169 | 4 |
| Gas stations | 71 | #360 of 2,358 | 9 | 6.5 | $4.7M | 197 | 13 |
| Pizza | 68 | #370 of 2,090 | 11 | 7.9 | $5.8M | 115 | 23 |
| Fast food and sandwich shops | 68 | #431 of 2,222 | 17 | 12.3 | $3.8M | 124 | 23 |
| Bakeries and dessert shops | 67 | #338 of 1,889 | 12 | 8.7 | $5.3M | 129 | 6 |
| Martial arts and dance studios | 66 | #240 of 1,334 | 7 | 5.1 | $2.4M | 119 | 3 |
| Clothing, shoes and laundry | 66 | #502 of 2,210 | 28 | 20.2 | $1.1M | 131 | 4 |
| Convenience stores | 66 | #551 of 2,261 | 12 | 8.7 | $7.7M | 98 | Under 3 |
| Coffee shops and cafes | 64 | #470 of 2,063 | 14 | 10.1 | $4.6M | 124 | 6 |
| Car washes and detailing | 63 | #381 of 1,451 | 5 | 3.6 | $3.5M | 138 | 3 |
| Restaurants and cafes | 62 | #666 of 2,405 | 133 | 96.0 | $483K | 130 | 59 |
| Sit-down restaurants | 60 | #729 of 2,405 | 64 | 46.2 | $1M | 151 | 30 |
| Gyms | 59 | #547 of 1,792 | 10 | 7.2 | $1.7M | 129 | 6 |
| Auto repair and car care | 59 | #771 of 2,401 | 51 | 36.8 | $341K | 127 | 26 |
| HVAC and plumbing | 57 | #613 of 1,707 | 10 | 7.2 | $4.4M | 92 | 11 |
| Home repair trades | 57 | #698 of 2,057 | 17 | 12.3 | $2.6M | 106 | 24 |
| Gyms, studios and classes | 57 | #715 of 2,088 | 21 | 15.2 | $798K | 121 | 9 |
| Auto repair shops | 57 | #838 of 2,378 | 30 | 21.7 | $579K | 130 | 21 |
| Roofing and gutters | 52 | #555 of 1,177 | 6 | 4.3 | $7.3M | 87 | Under 3 |
| Primary care and pediatrics | 52 | #791 of 1,656 | 16 | 11.6 | $1.4M | 80 | 14 |
| Nail salons | 48 | #754 of 1,328 | 9 | 6.5 | $1.8M | 107 | 4 |
| Spas and skin care | 47 | #984 of 1,769 | 13 | 9.4 | $1.2M | 141 | 7 |
| Pet businesses | 47 | #1,237 of 2,200 | 21 | 15.2 | $676K | 77 | 9 |
| Child care and preschools | 46 | #918 of 1,611 | 8 | 5.8 | $965K | 96 | 12 |
| Real estate | 45 | #1,337 of 2,229 | 33 | 23.8 | Index only | 154 | 28 |
| Veterinarians | 43 | #914 of 1,485 | 7 | 5.1 | $2M | 75 | 6 |
| Salons, barbers and spas | 43 | #1,563 of 2,385 | 66 | 47.6 | $244K | 114 | 23 |
| Dentists and orthodontists | 42 | #1,234 of 1,886 | 23 | 16.6 | $987K | 100 | 13 |
| Pet grooming and boarding | 41 | #951 of 1,461 | 11 | 7.9 | $1.3M | 51 | 3 |
| Doctors, dentists and clinics | 41 | #1,627 of 2,394 | 129 | 93.1 | $176K | 115 | 58 |
| Optometrists and eye care | 40 | #914 of 1,302 | 9 | 6.5 | $2.5M | 81 | 4 |
| Funeral homes | 40 | #989 of 1,472 | 7 | 5.1 | $315K | 46 | Under 3 |
| Real estate agents and brokers | 40 | #1,569 of 2,176 | 30 | 21.7 | Index only | 135 | 22 |
| Hair salons | 39 | #1,688 of 2,339 | 41 | 29.6 | $392K | 91 | 12 |
| Collision repair and body shops | 37 | #968 of 1,327 | 9 | 6.5 | $1.9M | 63 | 5 |
| Landscaping and lawn care | 35 | #1,149 of 1,493 | 10 | 7.2 | $2M | 68 | 20 |
| Physical therapy | 33 | #1,151 of 1,422 | 13 | 9.4 | $1.7M | 73 | 14 |
| Lawn, cleaning and pest control | 29 | #1,606 of 1,771 | 18 | 13.0 | $1.1M | 66 | 31 |
| Chiropractors | 27 | #1,341 of 1,490 | 19 | 13.7 | $1.2M | 50 | 13 |
| House cleaning | 24 | #794 of 847 | 6 | 4.3 | $3.3M | 52 | 11 |
| Insurance agencies | 17 | #2,136 of 2,272 | 30 | 21.7 | $847K | 67 | 25 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 4 | 2.9 | $4.2M | 103 | 6 |
| Barbershops | Not scored | Not scored | 3 | 2.2 | $5.4M | 284 | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 3 | 2.2 | $5.8M | 42 | Under 3 |
| Pet stores | Not scored | Not scored | 3 | 2.2 | $4.7M | 105 | Under 3 |
| Dry cleaners | Not scored | Not scored | 2 | 1.4 | $16.1M | Too few | Under 3 |
| Laundromats | Not scored | Not scored | 2 | 1.4 | $16.1M | Too few | Under 3 |
| Pest control | Not scored | Not scored | 2 | 1.4 | $9.9M | Too few | Under 3 |
| Tire shops | Not scored | Not scored | 2 | 1.4 | $8.7M | Too few | Under 3 |
| Electricians | Not scored | Not scored | 1 | 0.7 | $43.9M | Too few | 13 |
| Home inspectors | Not scored | Not scored | 1 | 0.7 | Index only | Too few | 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 1 | 0.7 | Index only | Too few | Under 3 |
| Property management | Not scored | Not scored | 1 | 0.7 | Index only | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Monroe 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 | $17.4M | $1,254 | 131 |
| Gasoline and other fuels | $42.3M | $3,055 | 118 |
| Food away from home | $64.2M | $4,635 | 114 |
| Groceries | $92.5M | $6,678 | 106 |
| Personal care products and services | $16.1M | $1,160 | 115 |
| Child care and other personal services | $7.7M | $557 | 96 |
| Memberships, classes and admissions | $16.8M | $1,210 | 123 |
| Medical and dental services | $22.7M | $1,640 | 127 |
| Pets | $14.2M | $1,025 | 113 |
| Clothing, shoes and related services | $32.2M | $2,324 | 113 |
| Vehicle insurance | $25.4M | $1,834 | 94 |
| Home repairs, maintenance and insurance | $43.9M | $3,173 | 105 |
| Lawn care, cleaning and other household services | $19.8M | $1,431 | 101 |
| Rent and homeowner costs | $220.7M | $15,935 | 96 |
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 Monroe County
- Population, 2025 estimate
- 34,840−0.3% since 2020
- Households
- 13,851
- Median age
- 43.5
- Homes lived in by their owners
- 85%
- Vehicles per household
- 2.1
- Land area
- 385 sq. mi.
- People per square mile
- 91
- Median household income
- $102,880+20.0% vs. 2015–2019, before inflation
- Average household income
- $123,402
- Median home value
- $282,100
- Jobs located here
- 9,117
- Daytime population
- 25,946Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Monroe 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 Monroe 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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- Clinton County, IL36,954 people
- Washington County, IL13,627 people
- Jersey County, IL21,274 people
- Perry County, IL20,639 people
- Bond County, IL16,716 people
Questions
How fast is Monroe County, IL growing?
Population estimates put Monroe County at 34,840 people in 2025, down 0.3% since 2020, against +3.1% for the U.S. It has 13,851 households. Against the 2015–2019 survey, median household income rose 20.0%, before inflation.
How much do households in Monroe County, IL spend?
Households in Monroe County spend about $220.7M a year on rent and homeowner costs, $92.5M on groceries and $64.2M on food away from home. Relative to the U.S., household spending in Monroe County runs highest on vehicle maintenance and repairs (an index of 131, where 100 is the U.S. average) and lowest on vehicle insurance (94).
Which business types have the highest market scores in Monroe County, IL?
Of the business types scored in Monroe County, grocery and convenience stores (79), grocery stores (79) and clothing and shoe stores (72) have the highest Groundwork market scores. For grocery and convenience stores, that ranks #204 of 2,402 scored counties.
How does Monroe County, IL compare with the U.S.?
Median household income in Monroe County is $102,880, 27% above the U.S. median of $80,734. The population fell 0.3% from 2020 to 2025, against +3.1% for the U.S. The median home value is $282,100, against $332,700 for the U.S. Against the U.S., map listings per household run highest for chiropractors (2.5 times the U.S. rate) and lowest for real estate businesses (38% 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 Monroe 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 Monroe 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 Monroe 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 Monroe 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.