County profile · Illinois
Mason County, IL market data
How Mason County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 12,411
- −4.9% since 2020
- Households
- 5,781
- Median household income
- $62,845
- +29.8% vs. 2015–2019, before inflation
- Median home value
- $103,400
- Jobs located here
- 2,660
- Highest market score
- 62
- Fast food and sandwich shops, #642 of 2,222 scored counties
A site report maps the competitors on map listings around any address in Mason County by name and distance, and the households and spending within reach. Or open the report at the center of Mason 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
Mason County has an estimated 12,411 people and 5,781 households. Between 2020 and 2025, the population of Mason County declined 4.9%, against +3.1% for the U.S. Median household income in Mason County is $62,845, 22% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 29.8%, before inflation.
Relative to the U.S., household spending in Mason County runs highest on vehicle maintenance and repairs (an index of 113, where 100 is the U.S. average) and lowest on child care and other personal services (56).
Of the business types scored in Mason County, fast food and sandwich shops (62); medical and dental practices (60); and salons, barbers and spas (53) have the highest Groundwork market scores. For fast food and sandwich shops, that ranks #642 of 2,222 scored counties.
Against the U.S., map listings per household run highest for auto repair and car care businesses (31% above the U.S. rate) and lowest for medical and dental practices (61% below the U.S. rate).
All 56 business types in Mason County
Highest Groundwork market score first. Each score compares Mason 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 |
|---|---|---|---|---|---|---|---|
| Fast food and sandwich shops | 62 | #642 of 2,222 | 5 | 8.6 | $4M | 131 | 5 |
| Doctors, dentists and clinics | 60 | #729 of 2,394 | 19 | 32.9 | $388K | 254 | Under 3 |
| Salons, barbers and spas | 53 | #963 of 2,385 | 14 | 24.2 | $366K | 172 | Under 3 |
| Hair salons | 50 | #1,153 of 2,339 | 9 | 15.6 | $570K | 132 | Under 3 |
| Clothing, shoes and laundry | 47 | #1,229 of 2,210 | 7 | 12.1 | $1.5M | 165 | Under 3 |
| Auto repair shops | 45 | #1,424 of 2,378 | 13 | 22.5 | $483K | 109 | 7 |
| Sit-down restaurants | 44 | #1,446 of 2,405 | 26 | 45.0 | $766K | 115 | 9 |
| Restaurants and cafes | 44 | #1,458 of 2,405 | 55 | 95.1 | $362K | 98 | 16 |
| Gas stations | 43 | #1,454 of 2,358 | 5 | 8.6 | $3.3M | 137 | 11 |
| Clothing and shoe stores | 42 | #1,320 of 2,087 | 6 | 10.4 | $1.7M | 134 | Under 3 |
| Auto repair and car care | 41 | #1,614 of 2,401 | 27 | 46.7 | $233K | 87 | 8 |
| Pizza | 36 | #1,611 of 2,090 | 8 | 13.8 | $2.5M | 49 | 5 |
| Lawn, cleaning and pest control | 35 | #1,418 of 1,771 | 5 | 8.6 | $1.3M | 76 | 4 |
| Convenience stores | 33 | #1,704 of 2,261 | 6 | 10.4 | $5.4M | 69 | Under 3 |
| Grocery and convenience stores | 31 | #1,919 of 2,402 | 13 | 22.5 | $2.5M | 74 | Under 3 |
| Pet businesses | 26 | #1,974 of 2,200 | 7 | 12.1 | $609K | 69 | Under 3 |
| Grocery stores | 25 | #1,770 of 2,070 | 5 | 8.6 | $6.5M | 70 | Under 3 |
| Insurance agencies | 13 | #2,205 of 2,272 | 11 | 19.0 | $901K | 72 | 8 |
| Car washes and detailing | Not scored | Not scored | 4 | 6.9 | $1.6M | 62 | Under 3 |
| Child care and preschools | Not scored | Not scored | 4 | 6.9 | $472K | 47 | 4 |
| Chiropractors | Not scored | Not scored | 4 | 6.9 | $1.8M | 77 | Under 3 |
| Dentists and orthodontists | Not scored | Not scored | 4 | 6.9 | $1.8M | 187 | Under 3 |
| Funeral homes | Not scored | Not scored | 4 | 6.9 | $222K | 33 | Under 3 |
| Home repair trades | Not scored | Not scored | 4 | 6.9 | $3.5M | 144 | 5 |
| Landscaping and lawn care | Not scored | Not scored | 4 | 6.9 | $1.6M | 55 | 4 |
| Veterinarians | Not scored | Not scored | 4 | 6.9 | $1.1M | 39 | Under 3 |
| Real estate | Not scored | Not scored | 3 | 5.2 | Index only | 571 | Under 3 |
| Spas and skin care | Not scored | Not scored | 3 | 5.2 | $1.7M | 195 | Under 3 |
| Barbershops | Not scored | Not scored | 2 | 3.5 | $2.6M | Too few | Under 3 |
| Coffee shops and cafes | Not scored | Not scored | 2 | 3.5 | $10M | Too few | Under 3 |
| Collision repair and body shops | Not scored | Not scored | 2 | 3.5 | $3.1M | Too few | 3 |
| Electricians | Not scored | Not scored | 2 | 3.5 | $7M | Too few | 5 |
| Gyms | Not scored | Not scored | 2 | 3.5 | $2M | Too few | Under 3 |
| Gyms, studios and classes | Not scored | Not scored | 2 | 3.5 | $2M | Too few | Under 3 |
| HVAC and plumbing | Not scored | Not scored | 2 | 3.5 | $7M | Too few | Under 3 |
| Pet grooming and boarding | Not scored | Not scored | 2 | 3.5 | $2.1M | Too few | Under 3 |
| Primary care and pediatrics | Not scored | Not scored | 2 | 3.5 | $3.7M | Too few | Under 3 |
| Real estate agents and brokers | Not scored | Not scored | 2 | 3.5 | Index only | Too few | Under 3 |
| Bakeries and dessert shops | Not scored | Not scored | 1 | 1.7 | $19.9M | Too few | Under 3 |
| House cleaning | Not scored | Not scored | 1 | 1.7 | $6.4M | Too few | Under 3 |
| Laundromats | Not scored | Not scored | 1 | 1.7 | $10.2M | Too few | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 1 | 1.7 | $6.3M | Too few | Under 3 |
| Pet stores | Not scored | Not scored | 1 | 1.7 | $4.3M | Too few | Under 3 |
| Property management | Not scored | Not scored | 1 | 1.7 | Index only | Too few | Under 3 |
| Tire shops | Not scored | Not scored | 1 | 1.7 | $6.3M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Martial arts and dance studios | 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 |
| Nail salons | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Optometrists and eye care | 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 |
| Physical therapy | 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 |
| 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 Mason 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 | $6.3M | $1,086 | 113 |
| Gasoline and other fuels | $16.3M | $2,820 | 109 |
| Food away from home | $19.9M | $3,447 | 85 |
| Groceries | $32.6M | $5,642 | 89 |
| Personal care products and services | $5.1M | $887 | 88 |
| Child care and other personal services | $1.9M | $326 | 56 |
| Memberships, classes and admissions | $4.1M | $708 | 72 |
| Medical and dental services | $7.4M | $1,274 | 99 |
| Pets | $4.3M | $738 | 81 |
| Clothing, shoes and related services | $10.2M | $1,763 | 86 |
| Vehicle insurance | $9.9M | $1,714 | 88 |
| Home repairs, maintenance and insurance | $14M | $2,415 | 80 |
| Lawn care, cleaning and other household services | $6.4M | $1,109 | 78 |
| Rent and homeowner costs | $74.2M | $12,840 | 77 |
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 Mason County
- Population, 2025 estimate
- 12,411−4.9% since 2020
- Households
- 5,781
- Median age
- 44.9
- Homes lived in by their owners
- 82%
- Vehicles per household
- 2.0
- Land area
- 539 sq. mi.
- People per square mile
- 24
- Median household income
- $62,845+29.8% vs. 2015–2019, before inflation
- Average household income
- $78,083
- Median home value
- $103,400
- Jobs located here
- 2,660
- Daytime population
- 11,149Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Mason 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 Mason 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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- Cass County, IL12,784 people
- Peoria County, IL179,645 people
- Schuyler County, IL6,787 people
- Sangamon County, IL194,947 people
Questions
How fast is Mason County, IL growing?
Population estimates put Mason County at 12,411 people in 2025, down 4.9% since 2020, against +3.1% for the U.S. It has 5,781 households. Median household income rose 29.8% from the 2015–2019 survey, before inflation.
How much do households in Mason County, IL spend?
Households in Mason County spend about $74.2M a year on rent and homeowner costs, $32.6M on groceries and $19.9M on food away from home. Set against the U.S., households in Mason County spend the most on vehicle maintenance and repairs (an index of 113, where 100 is the U.S. average) and the least on child care and other personal services (56).
Which business types have the highest market scores in Mason County, IL?
The highest Groundwork market scores in Mason County are for fast food and sandwich shops (62); medical and dental practices (60); and salons, barbers and spas (53). Mason County ranks #642 of 2,222 scored counties for fast food and sandwich shops.
How does Mason County, IL compare with the U.S.?
The median household income in Mason County is $62,845 a year, 22% below the U.S. median of $80,734. The population fell 4.9% from 2020 to 2025, against +3.1% for the U.S. The median home value is $103,400, against $332,700 for the U.S. For its number of households, Mason County has the most map listings, relative to the U.S., for auto repair and car care businesses (31% above the U.S. rate) and the fewest for medical and dental practices (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. 18 of the 56 business types have a score in Mason 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 Mason 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 Mason 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 Mason 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.