County profile · Illinois
Jersey County, IL market data
Population, household spending and competition for 56 business types in Jersey County, each scored against other counties.
- Population, 2025
- 21,160
- −1.5% since 2020
- Households
- 7,965
- Median household income
- $80,361
- +27.5% vs. 2015–2019, before inflation
- Median home value
- $171,900
- Jobs located here
- 5,045
- Highest market score
- 68
- Gyms, studios and classes, #294 of 2,088 scored counties
A site report maps the competitors on map listings around any address in Jersey County by name and distance, and the households and spending within reach. Or open the report at the center of Jersey 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 21,160 people live in Jersey County, in 7,965 households. Population estimates put the population change in Jersey County from 2020 to 2025 at −1.5%, against +3.1% for the U.S. The median household income in Jersey County is $80,361 a year, in line with the U.S. median of $80,734. That rose 27.5% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Jersey County spend the most on vehicle maintenance and repairs (an index of 126, where 100 is the U.S. average) and the least on child care and other personal services (74).
The highest Groundwork market scores in Jersey County are for gyms and studios (68), hair salons (66) and auto repair shops (65). Jersey County ranks #294 of 2,088 scored counties for gyms and studios.
Jersey County is part of the St. Louis metro area. For its number of households, Jersey County has the most map listings, relative to the U.S., for pizza places (73% above the U.S. rate) and the fewest for real estate businesses (67% below the U.S. rate).
All 56 business types in Jersey County
Highest Groundwork market score first. Each score compares Jersey 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 |
|---|---|---|---|---|---|---|---|
| Gyms, studios and classes | 68 | #294 of 2,088 | 5 | 6.3 | $1.5M | 223 | 3 |
| Hair salons | 66 | #413 of 2,339 | 13 | 16.3 | $618K | 144 | Under 3 |
| Auto repair shops | 65 | #517 of 2,378 | 16 | 20.1 | $599K | 135 | 8 |
| Salons, barbers and spas | 63 | #528 of 2,385 | 24 | 30.1 | $335K | 157 | Under 3 |
| Auto repair and car care | 63 | #609 of 2,401 | 27 | 33.9 | $355K | 132 | 12 |
| Real estate agents and brokers | 60 | #548 of 2,176 | 9 | 11.3 | Index only | 231 | 4 |
| Real estate | 60 | #560 of 2,229 | 10 | 12.6 | Index only | 262 | 7 |
| Convenience stores | 60 | #751 of 2,261 | 6 | 7.5 | $8.1M | 103 | Under 3 |
| Gas stations | 60 | #752 of 2,358 | 10 | 12.6 | $2.4M | 101 | 7 |
| Pet businesses | 59 | #690 of 2,200 | 8 | 10.0 | $863K | 98 | Under 3 |
| Grocery and convenience stores | 59 | #825 of 2,402 | 14 | 17.6 | $3.5M | 103 | Under 3 |
| Spas and skin care | 57 | #608 of 1,769 | 6 | 7.5 | $1.3M | 153 | Under 3 |
| Dentists and orthodontists | 56 | #709 of 1,886 | 8 | 10.0 | $1.4M | 145 | 6 |
| Home repair trades | 53 | #901 of 2,057 | 10 | 12.6 | $2.2M | 90 | 8 |
| Clothing and shoe stores | 53 | #928 of 2,087 | 10 | 12.6 | $1.6M | 126 | Under 3 |
| Doctors, dentists and clinics | 53 | #1,056 of 2,394 | 58 | 72.8 | $197K | 129 | 16 |
| Clothing, shoes and laundry | 52 | #1,047 of 2,210 | 14 | 17.6 | $1.1M | 130 | Under 3 |
| Bakeries and dessert shops | 48 | #988 of 1,889 | 7 | 8.8 | $4.5M | 109 | 5 |
| Grocery stores | 46 | #1,145 of 2,070 | 6 | 7.5 | $8.1M | 87 | Under 3 |
| Fast food and sandwich shops | 46 | #1,308 of 2,222 | 12 | 15.1 | $2.6M | 86 | 15 |
| Car washes and detailing | 43 | #913 of 1,451 | 5 | 6.3 | $1.9M | 76 | Under 3 |
| Chiropractors | 42 | #959 of 1,490 | 6 | 7.5 | $1.9M | 79 | Under 3 |
| Coffee shops and cafes | 42 | #1,315 of 2,063 | 9 | 11.3 | $3.5M | 95 | 5 |
| HVAC and plumbing | 41 | #1,190 of 1,707 | 8 | 10.0 | $2.7M | 58 | 4 |
| Pizza | 37 | #1,567 of 2,090 | 11 | 13.8 | $2.9M | 57 | 15 |
| Sit-down restaurants | 32 | #1,971 of 2,405 | 56 | 70.3 | $564K | 85 | 17 |
| Restaurants and cafes | 31 | #1,990 of 2,405 | 108 | 135.6 | $293K | 79 | 37 |
| Insurance agencies | 19 | #2,100 of 2,272 | 17 | 21.3 | $852K | 68 | 10 |
| Nail salons | Not scored | Not scored | 4 | 5.0 | $2M | 120 | Under 3 |
| Gyms | Not scored | Not scored | 3 | 3.8 | $2.5M | 189 | Under 3 |
| Pet grooming and boarding | Not scored | Not scored | 3 | 3.8 | $2.3M | 90 | Under 3 |
| Electricians | Not scored | Not scored | 2 | 2.5 | $11M | Too few | 4 |
| Funeral homes | Not scored | Not scored | 2 | 2.5 | $647K | Too few | Under 3 |
| Laundromats | Not scored | Not scored | 2 | 2.5 | $8M | Too few | Under 3 |
| Lawn, cleaning and pest control | Not scored | Not scored | 2 | 2.5 | $5M | Too few | 7 |
| Martial arts and dance studios | Not scored | Not scored | 2 | 2.5 | $3.7M | Too few | 3 |
| Optometrists and eye care | Not scored | Not scored | 2 | 2.5 | $5.7M | Too few | Under 3 |
| Barbershops | Not scored | Not scored | 1 | 1.3 | $8M | Too few | Under 3 |
| Child care and preschools | Not scored | Not scored | 1 | 1.3 | $3.4M | Too few | 4 |
| Collision repair and body shops | Not scored | Not scored | 1 | 1.3 | $9.6M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 1 | 1.3 | $16M | Too few | Under 3 |
| Landscaping and lawn care | Not scored | Not scored | 1 | 1.3 | $10M | Too few | 7 |
| Pest control | Not scored | Not scored | 1 | 1.3 | $10M | Too few | Under 3 |
| Pet stores | Not scored | Not scored | 1 | 1.3 | $6.9M | Too few | Under 3 |
| Physical therapy | Not scored | Not scored | 1 | 1.3 | $11.4M | Too few | 4 |
| Primary care and pediatrics | Not scored | Not scored | 1 | 1.3 | $11.4M | Too few | 6 |
| Property management | Not scored | Not scored | 1 | 1.3 | Index only | Too few | Under 3 |
| Tire shops | Not scored | Not scored | 1 | 1.3 | $9.6M | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 1 | 1.3 | $11.4M | Too few | Under 3 |
| Veterinarians | Not scored | Not scored | 1 | 1.3 | $6.9M | Too few | Under 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| House cleaning | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Mortgage brokers and lenders | 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 |
| Roofing and gutters | 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 Jersey 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 | $9.6M | $1,203 | 126 |
| Gasoline and other fuels | $24M | $3,016 | 116 |
| Food away from home | $31.6M | $3,968 | 97 |
| Groceries | $48.7M | $6,117 | 97 |
| Personal care products and services | $8M | $1,009 | 100 |
| Child care and other personal services | $3.4M | $430 | 74 |
| Memberships, classes and admissions | $7.4M | $929 | 94 |
| Medical and dental services | $11.4M | $1,433 | 111 |
| Pets | $6.9M | $867 | 95 |
| Clothing, shoes and related services | $16M | $2,008 | 98 |
| Vehicle insurance | $14.5M | $1,818 | 93 |
| Home repairs, maintenance and insurance | $22M | $2,759 | 91 |
| Lawn care, cleaning and other household services | $10M | $1,250 | 88 |
| Rent and homeowner costs | $113.5M | $14,251 | 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 Jersey County
- Population, 2025 estimate
- 21,160−1.5% since 2020
- Households
- 7,965
- Median age
- 42.6
- Homes lived in by their owners
- 81%
- Vehicles per household
- 2.1
- Land area
- 370 sq. mi.
- People per square mile
- 58
- Median household income
- $80,361+27.5% vs. 2015–2019, before inflation
- Average household income
- $98,416
- Median home value
- $171,900
- Jobs located here
- 5,045
- Daytime population
- 16,288Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Jersey 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 Jersey 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
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- Greene County, IL11,683 people
- Madison County, IL264,238 people
- Macoupin County, IL44,350 people
- Scott County, IL4,937 people
- St. Clair County, IL253,694 people
- Montgomery County, IL27,942 people
- Morgan County, IL33,021 people
Questions
How fast is Jersey County, IL growing?
Population estimates put Jersey County at 21,160 people in 2025, down 1.5% since 2020, against +3.1% for the U.S. It has 7,965 households. Against the 2015–2019 survey, median household income rose 27.5%, before inflation.
How much do households in Jersey County, IL spend?
Households in Jersey County spend about $113.5M a year on rent and homeowner costs, $48.7M on groceries and $31.6M on food away from home. Relative to the U.S., household spending in Jersey County runs highest on vehicle maintenance and repairs (an index of 126, where 100 is the U.S. average) and lowest on child care and other personal services (74).
Which business types have the highest market scores in Jersey County, IL?
Of the business types scored in Jersey County, gyms and studios (68), hair salons (66) and auto repair shops (65) have the highest Groundwork market scores. For gyms and studios, that ranks #294 of 2,088 scored counties.
How does Jersey County, IL compare with the U.S.?
Median household income in Jersey County is $80,361, in line with the U.S. median of $80,734. The population fell 1.5% from 2020 to 2025, against +3.1% for the U.S. The median home value is $171,900, against $332,700 for the U.S. Against the U.S., map listings per household run highest for pizza places (73% above the U.S. rate) and lowest for real estate businesses (67% 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. 28 of the 56 business types have a score in Jersey 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 Jersey 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 Jersey 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 Jersey 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.