County profile · Illinois
Grundy County, IL market data
Population, household spending and competition for 56 business types in Grundy County, each scored against other counties.
- Population, 2025
- 54,052
- +2.9% since 2020
- Households
- 20,595
- Median household income
- $92,235
- +19.2% vs. 2015–2019, before inflation
- Median home value
- $271,700
- Jobs located here
- 22,659
- Highest market score
- 86
- Tire shops, #27 of 1,530 scored counties
A site report maps the competitors on map listings around any address in Grundy County by name and distance, and the households and spending within reach. Or open the report at the center of Grundy 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 54,052 people live in Grundy County, in 20,595 households. Population estimates show Grundy County grew 2.9% from 2020 to 2025, in step with the U.S. (+3.1%). The median household income in Grundy County is $92,235 a year, 14% above the U.S. median of $80,734. That rose 19.2% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Grundy County spend the most on vehicle maintenance and repairs (an index of 128, where 100 is the U.S. average) and the least on child care and other personal services (84).
The highest Groundwork market scores in Grundy County are for tire shops (86), grocery stores (83) and grocery and convenience stores (83). Grundy County ranks #27 of 1,530 scored counties for tire shops.
Grundy County is part of the Chicago-Naperville-Elgin metro area. For its number of households, Grundy County has the most map listings, relative to the U.S., for pet grooming and boarding businesses (2.4 times the U.S. rate) and the fewest for clothing and shoe stores (37% below the U.S. rate).
All 56 business types in Grundy County
Highest Groundwork market score first. Each score compares Grundy 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 |
|---|---|---|---|---|---|---|---|
| Tire shops | 86 | #27 of 1,530 | 5 | 2.4 | $5M | 201 | Under 3 |
| Grocery stores | 83 | #133 of 2,070 | 9 | 4.4 | $14.8M | 159 | 6 |
| Grocery and convenience stores | 83 | #135 of 2,402 | 33 | 16.0 | $4M | 119 | 7 |
| Child care and preschools | 77 | #130 of 1,611 | 8 | 3.9 | $1.3M | 126 | 7 |
| Dentists and orthodontists | 75 | #160 of 1,886 | 20 | 9.7 | $1.6M | 163 | 12 |
| Clothing and shoe stores | 74 | #264 of 2,087 | 21 | 10.2 | $2.1M | 168 | 9 |
| Clothing, shoes and laundry | 74 | #275 of 2,210 | 31 | 15.1 | $1.4M | 165 | 9 |
| Barbershops | 72 | #187 of 1,356 | 9 | 4.4 | $2.5M | 133 | Under 3 |
| Bakeries and dessert shops | 70 | #272 of 1,889 | 18 | 8.7 | $5M | 120 | 9 |
| Convenience stores | 69 | #470 of 2,261 | 20 | 9.7 | $6.6M | 84 | Under 3 |
| Electricians | 65 | #253 of 1,160 | 5 | 2.4 | $12.4M | 103 | 13 |
| Collision repair and body shops | 63 | #362 of 1,327 | 6 | 2.9 | $4.2M | 136 | 10 |
| Hair salons | 63 | #542 of 2,339 | 44 | 21.4 | $514K | 119 | 13 |
| Coffee shops and cafes | 60 | #624 of 2,063 | 26 | 12.6 | $3.4M | 93 | 9 |
| Roofing and gutters | 59 | #385 of 1,177 | 7 | 3.4 | $8.9M | 105 | 5 |
| Nail salons | 57 | #490 of 1,328 | 14 | 6.8 | $1.6M | 97 | 4 |
| Physical therapy | 57 | #525 of 1,422 | 11 | 5.3 | $2.9M | 121 | 15 |
| Car washes and detailing | 57 | #551 of 1,451 | 14 | 6.8 | $1.8M | 71 | 3 |
| Veterinarians | 57 | #556 of 1,485 | 7 | 3.4 | $2.8M | 103 | 10 |
| Sit-down restaurants | 57 | #867 of 2,405 | 117 | 56.8 | $765K | 115 | 43 |
| Primary care and pediatrics | 56 | #639 of 1,656 | 15 | 7.3 | $2.1M | 120 | 50 |
| Auto repair shops | 56 | #902 of 2,378 | 52 | 25.2 | $484K | 109 | 33 |
| Lawn, cleaning and pest control | 55 | #688 of 1,771 | 18 | 8.7 | $1.6M | 93 | 29 |
| Spas and skin care | 55 | #702 of 1,769 | 21 | 10.2 | $1.1M | 123 | 6 |
| Chiropractors | 54 | #628 of 1,490 | 14 | 6.8 | $2.3M | 95 | 10 |
| Salons, barbers and spas | 54 | #941 of 2,385 | 90 | 43.7 | $251K | 118 | 24 |
| Gas stations | 54 | #990 of 2,358 | 28 | 13.6 | $2.2M | 93 | 32 |
| Auto repair and car care | 52 | #1,144 of 2,401 | 98 | 47.6 | $257K | 96 | 40 |
| Mortgage brokers and lenders | 51 | #422 of 887 | 7 | 3.4 | Index only | 115 | Under 3 |
| Restaurants and cafes | 51 | #1,152 of 2,405 | 239 | 116.0 | $374K | 101 | 102 |
| Laundromats | 50 | #384 of 785 | 5 | 2.4 | $9M | 72 | Under 3 |
| Landscaping and lawn care | 50 | #712 of 1,493 | 13 | 6.3 | $2.2M | 73 | 20 |
| Real estate | 50 | #1,107 of 2,229 | 64 | 31.1 | Index only | 113 | 22 |
| Real estate agents and brokers | 49 | #1,120 of 2,176 | 53 | 25.7 | Index only | 109 | 14 |
| Home repair trades | 48 | #1,154 of 2,057 | 34 | 16.5 | $1.8M | 75 | 36 |
| Fast food and sandwich shops | 48 | #1,230 of 2,222 | 35 | 17.0 | $2.6M | 84 | 50 |
| Gyms | 46 | #1,061 of 1,792 | 22 | 10.7 | $1M | 78 | 10 |
| Doctors, dentists and clinics | 45 | #1,430 of 2,394 | 194 | 94.2 | $165K | 108 | 93 |
| HVAC and plumbing | 44 | #1,085 of 1,707 | 22 | 10.7 | $2.8M | 59 | 18 |
| Optometrists and eye care | 43 | #852 of 1,302 | 14 | 6.8 | $2.3M | 73 | 6 |
| Pet businesses | 43 | #1,406 of 2,200 | 34 | 16.5 | $575K | 65 | 18 |
| Gyms, studios and classes | 42 | #1,436 of 2,088 | 41 | 19.9 | $546K | 82 | 21 |
| Pet grooming and boarding | 40 | #983 of 1,461 | 18 | 8.7 | $1.1M | 43 | 5 |
| Pizza | 39 | #1,494 of 2,090 | 33 | 16.0 | $2.7M | 53 | 50 |
| Martial arts and dance studios | 38 | #985 of 1,334 | 16 | 7.8 | $1.4M | 69 | 11 |
| Pet stores | 36 | #696 of 974 | 7 | 3.4 | $2.8M | 62 | 3 |
| Funeral homes | 35 | #1,099 of 1,472 | 8 | 3.9 | $336K | 49 | 5 |
| Insurance agencies | 35 | #1,654 of 2,272 | 35 | 17.0 | $1.1M | 86 | 24 |
| Home inspectors | Not scored | Not scored | 4 | 1.9 | Index only | 30 | Under 3 |
| House cleaning | Not scored | Not scored | 3 | 1.5 | $9.3M | 146 | 9 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 3 | 1.5 | $7.5M | 184 | 10 |
| Pest control | Not scored | Not scored | 2 | 1.0 | $14M | Too few | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 2 | 1.0 | $16M | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 1 | 0.5 | $44.9M | Too few | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 1 | 0.5 | $25.2M | Too few | 4 |
| Property management | Not scored | Not scored | 0 | 0.0 | None listed | None listed | 4 |
Household spending in Grundy 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 | $25.2M | $1,223 | 128 |
| Gasoline and other fuels | $62.1M | $3,017 | 116 |
| Food away from home | $89.5M | $4,344 | 107 |
| Groceries | $132.8M | $6,450 | 102 |
| Personal care products and services | $22.6M | $1,098 | 109 |
| Child care and other personal services | $10.1M | $488 | 84 |
| Memberships, classes and admissions | $22.4M | $1,087 | 111 |
| Medical and dental services | $32M | $1,553 | 121 |
| Pets | $19.5M | $949 | 104 |
| Clothing, shoes and related services | $44.9M | $2,181 | 106 |
| Vehicle insurance | $37.7M | $1,830 | 94 |
| Home repairs, maintenance and insurance | $62M | $3,011 | 100 |
| Lawn care, cleaning and other household services | $28M | $1,358 | 96 |
| Rent and homeowner costs | $313.8M | $15,235 | 91 |
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 Grundy County
- Population, 2025 estimate
- 54,052+2.9% since 2020
- Households
- 20,595
- Median age
- 39.5
- Homes lived in by their owners
- 74%
- Vehicles per household
- 2.1
- Land area
- 418 sq. mi.
- People per square mile
- 127
- Median household income
- $92,235+19.2% vs. 2015–2019, before inflation
- Average household income
- $111,828
- Median home value
- $271,700
- Jobs located here
- 22,659
- Daytime population
- 48,130Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Grundy 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 Grundy 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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Questions
How fast is Grundy County, IL growing?
Population estimates put Grundy County at 54,052 people in 2025, up 2.9% since 2020, in step with the U.S. (+3.1%). It has 20,595 households. Against the 2015–2019 survey, median household income rose 19.2%, before inflation.
How much do households in Grundy County, IL spend?
Households in Grundy County spend about $313.8M a year on rent and homeowner costs, $132.8M on groceries and $89.5M on food away from home. Relative to the U.S., household spending in Grundy County runs highest on vehicle maintenance and repairs (an index of 128, where 100 is the U.S. average) and lowest on child care and other personal services (84).
Which business types have the highest market scores in Grundy County, IL?
Of the business types scored in Grundy County, tire shops (86), grocery stores (83) and grocery and convenience stores (83) have the highest Groundwork market scores. For tire shops, that ranks #27 of 1,530 scored counties.
How does Grundy County, IL compare with the U.S.?
Median household income in Grundy County is $92,235, 14% above the U.S. median of $80,734. The population rose 2.9% from 2020 to 2025, against +3.1% for the U.S. The median home value is $271,700, against $332,700 for the U.S. Against the U.S., map listings per household run highest for pet grooming and boarding businesses (2.4 times the U.S. rate) and lowest for clothing and shoe stores (37% 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. 48 of the 56 business types have a score in Grundy 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 Grundy 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 Grundy 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 Grundy 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.