County profile · Illinois
Rock Island County, IL market data
How Rock Island County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 141,869
- −1.7% since 2020
- Households
- 61,733
- Median household income
- $67,159
- +22.4% vs. 2015–2019, before inflation
- Median home value
- $150,400
- Jobs located here
- 67,505
- Highest market score
- 72
- Optometrists and eye care, #156 of 1,302 scored counties
A site report maps the competitors on map listings around any address in Rock Island County by name and distance, and the households and spending within reach. Or open the report at the center of Rock Island 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
Rock Island County has an estimated 141,869 people and 61,733 households. Population estimates show Rock Island County declined 1.7% from 2020 to 2025, against +3.1% for the U.S. Median household income in Rock Island County is $67,159, 17% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 22.4%, before inflation.
Relative to the U.S., household spending in Rock Island County runs highest on medical and dental services (an index of 104, where 100 is the U.S. average) and lowest on child care and other personal services (62).
Of the business types scored in Rock Island County, optometrists and eye clinics (72); spas and skin care studios (66); and yoga, Pilates and fitness studios (64) have the highest Groundwork market scores. For optometrists and eye clinics, that ranks #156 of 1,302 scored counties.
Rock Island County is part of the Davenport-Moline-Rock Island metro area. Against the U.S., map listings per household run highest for oil change and quick-lube shops (2.7 times the U.S. rate) and lowest for real estate agents and brokers (61% below the U.S. rate).
All 56 business types in Rock Island County
Highest Groundwork market score first. Each score compares Rock Island 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 |
|---|---|---|---|---|---|---|---|
| Optometrists and eye care | 72 | #156 of 1,302 | 15 | 2.4 | $5.5M | 175 | 7 |
| Spas and skin care | 66 | #318 of 1,769 | 30 | 4.9 | $1.9M | 217 | 9 |
| Yoga, Pilates and fitness studios | 64 | #152 of 777 | 6 | 1.0 | $8.1M | 199 | 9 |
| HVAC and plumbing | 63 | #384 of 1,707 | 21 | 3.4 | $7.4M | 156 | 31 |
| Nail salons | 60 | #398 of 1,328 | 26 | 4.2 | $2.2M | 131 | 6 |
| Convenience stores | 58 | #821 of 2,261 | 44 | 7.1 | $8.1M | 103 | 13 |
| Collision repair and body shops | 57 | #504 of 1,327 | 17 | 2.8 | $3.5M | 113 | 11 |
| Home repair trades | 57 | #696 of 2,057 | 58 | 9.4 | $2.7M | 111 | 46 |
| Clothing and shoe stores | 57 | #769 of 2,087 | 62 | 10.0 | $1.8M | 145 | 22 |
| Property management | 55 | #356 of 910 | 8 | 1.3 | Index only | 185 | 15 |
| Electricians | 55 | #466 of 1,160 | 13 | 2.1 | $12M | 100 | 10 |
| Tire shops | 55 | #646 of 1,530 | 24 | 3.9 | $2.5M | 99 | 7 |
| Martial arts and dance studios | 54 | #540 of 1,334 | 23 | 3.7 | $2.1M | 104 | 10 |
| Bakeries and dessert shops | 54 | #769 of 1,889 | 40 | 6.5 | $5.6M | 135 | 32 |
| House cleaning | 53 | #347 of 847 | 10 | 1.6 | $7.1M | 111 | 14 |
| Real estate agents and brokers | 53 | #867 of 2,176 | 74 | 12.0 | Index only | 203 | 27 |
| Primary care and pediatrics | 52 | #767 of 1,656 | 35 | 5.7 | $2.4M | 132 | 94 |
| Coffee shops and cafes | 52 | #932 of 2,063 | 51 | 8.3 | $4.4M | 118 | 27 |
| Pest control | 51 | #333 of 699 | 6 | 1.0 | $11.9M | 116 | 5 |
| Pet stores | 51 | #452 of 974 | 9 | 1.5 | $5.4M | 118 | 5 |
| Clothing, shoes and laundry | 51 | #1,086 of 2,210 | 94 | 15.2 | $1.2M | 138 | 33 |
| Hair salons | 51 | #1,123 of 2,339 | 133 | 21.5 | $429K | 100 | 19 |
| Grocery and convenience stores | 51 | #1,153 of 2,402 | 100 | 16.2 | $3.6M | 105 | 43 |
| Veterinarians | 50 | #747 of 1,485 | 22 | 3.6 | $2.2M | 80 | 11 |
| Dentists and orthodontists | 50 | #926 of 1,886 | 59 | 9.6 | $1.4M | 142 | 51 |
| Real estate | 50 | #1,062 of 2,229 | 94 | 15.2 | Index only | 201 | 47 |
| Pet businesses | 50 | #1,089 of 2,200 | 63 | 10.2 | $765K | 87 | 27 |
| Gyms | 49 | #968 of 1,792 | 49 | 7.9 | $987K | 76 | 9 |
| Gyms, studios and classes | 48 | #1,170 of 2,088 | 78 | 12.6 | $620K | 94 | 19 |
| Auto repair shops | 47 | #1,326 of 2,378 | 129 | 20.9 | $461K | 104 | 57 |
| Salons, barbers and spas | 46 | #1,405 of 2,385 | 238 | 38.6 | $240K | 113 | 39 |
| Car washes and detailing | 45 | #853 of 1,451 | 28 | 4.5 | $2.1M | 84 | 8 |
| Auto repair and car care | 45 | #1,420 of 2,401 | 230 | 37.3 | $258K | 96 | 80 |
| Laundromats | 44 | #454 of 785 | 9 | 1.5 | $12.7M | 101 | 4 |
| Mortgage brokers and lenders | 43 | #562 of 887 | 12 | 1.9 | Index only | 175 | Under 3 |
| Roofing and gutters | 43 | #743 of 1,177 | 24 | 3.9 | $6.5M | 77 | 5 |
| Pet grooming and boarding | 42 | #912 of 1,461 | 27 | 4.4 | $1.8M | 70 | 11 |
| Physical therapy | 42 | #921 of 1,422 | 39 | 6.3 | $2.1M | 88 | 24 |
| Lawn, cleaning and pest control | 42 | #1,165 of 1,771 | 45 | 7.3 | $1.6M | 94 | 69 |
| Grocery stores | 42 | #1,286 of 2,070 | 40 | 6.5 | $8.9M | 96 | 30 |
| Funeral homes | 41 | #938 of 1,472 | 18 | 2.9 | $504K | 74 | 14 |
| Gas stations | 41 | #1,547 of 2,358 | 85 | 13.8 | $1.8M | 75 | 51 |
| Sit-down restaurants | 41 | #1,578 of 2,405 | 303 | 49.1 | $736K | 111 | 120 |
| Landscaping and lawn care | 40 | #996 of 1,493 | 29 | 4.7 | $2.5M | 84 | 50 |
| Fast food and sandwich shops | 40 | #1,486 of 2,222 | 81 | 13.1 | $2.8M | 90 | 124 |
| Dry cleaners | 39 | #359 of 507 | 7 | 1.1 | $16.3M | 104 | 7 |
| Restaurants and cafes | 39 | #1,642 of 2,405 | 601 | 97.4 | $371K | 100 | 272 |
| Pizza | 36 | #1,593 of 2,090 | 60 | 9.7 | $3.7M | 73 | 124 |
| Doctors, dentists and clinics | 36 | #1,840 of 2,394 | 483 | 78.2 | $170K | 112 | 212 |
| Child care and preschools | 34 | #1,239 of 1,611 | 30 | 4.9 | $745K | 74 | 36 |
| Barbershops | 29 | #1,120 of 1,356 | 46 | 7.5 | $1.2M | 66 | 5 |
| Insurance agencies | 27 | #1,902 of 2,272 | 97 | 15.7 | $952K | 76 | 46 |
| Chiropractors | 22 | #1,410 of 1,490 | 73 | 11.8 | $1.1M | 47 | 33 |
| Oil change and quick lube | 19 | #450 of 479 | 12 | 1.9 | $5M | 36 | 7 |
| Urgent care and walk-in clinics | Not scored | Not scored | 1 | 0.2 | $82.3M | Too few | 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Rock Island 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 | $59.4M | $963 | 101 |
| Gasoline and other fuels | $152.5M | $2,470 | 95 |
| Food away from home | $223.1M | $3,615 | 89 |
| Groceries | $356.9M | $5,782 | 91 |
| Personal care products and services | $57.1M | $925 | 92 |
| Child care and other personal services | $22.4M | $362 | 62 |
| Memberships, classes and admissions | $48.4M | $784 | 80 |
| Medical and dental services | $82.3M | $1,333 | 104 |
| Pets | $48.2M | $780 | 86 |
| Clothing, shoes and related services | $113.9M | $1,845 | 90 |
| Vehicle insurance | $92.4M | $1,496 | 76 |
| Home repairs, maintenance and insurance | $156.1M | $2,529 | 84 |
| Lawn care, cleaning and other household services | $71.3M | $1,154 | 82 |
| Rent and homeowner costs | $820.4M | $13,290 | 80 |
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 Rock Island County
- Population, 2025 estimate
- 141,869−1.7% since 2020
- Households
- 61,733
- Median age
- 40.9
- Homes lived in by their owners
- 70%
- Vehicles per household
- 1.7
- Land area
- 428 sq. mi.
- People per square mile
- 334
- Median household income
- $67,159+22.4% vs. 2015–2019, before inflation
- Average household income
- $85,299
- Median home value
- $150,400
- Jobs located here
- 67,505
- Daytime population
- 147,154Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Rock Island 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 Rock Island 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 Illinois 8
- Mercer County, IL15,495 people
- Henry County, IL48,643 people
- Knox County, IL49,046 people
- Whiteside County, IL54,947 people
- Warren County, IL16,447 people
- Stark County, IL5,308 people
- Carroll County, IL15,576 people
- Henderson County, IL6,193 people
Questions
How fast is Rock Island County, IL growing?
Population estimates put Rock Island County at 141,869 people in 2025, down 1.7% since 2020, against +3.1% for the U.S. It has 61,733 households. Median household income rose 22.4% from the 2015–2019 survey, before inflation.
How much do households in Rock Island County, IL spend?
Households in Rock Island County spend about $820.4M a year on rent and homeowner costs, $356.9M on groceries and $223.1M on food away from home. Set against the U.S., households in Rock Island County spend the most on medical and dental services (an index of 104, 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 Rock Island County, IL?
The highest Groundwork market scores in Rock Island County are for optometrists and eye clinics (72); spas and skin care studios (66); and yoga, Pilates and fitness studios (64). Rock Island County ranks #156 of 1,302 scored counties for optometrists and eye clinics.
How does Rock Island County, IL compare with the U.S.?
The median household income in Rock Island County is $67,159 a year, 17% below the U.S. median of $80,734. The population fell 1.7% from 2020 to 2025, against +3.1% for the U.S. The median home value is $150,400, against $332,700 for the U.S. For its number of households, Rock Island County has the most map listings, relative to the U.S., for oil change and quick-lube shops (2.7 times the U.S. rate) and the fewest for real estate agents and brokers (61% 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. 54 of the 56 business types have a score in Rock Island 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 Rock Island 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.
All markets in Illinois · Every U.S. market · How we measure
Screening a site or an acquisition in Rock Island 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 Rock Island 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.