Village · Grundy County, Illinois

Mazon, Illinois

Mazon is a village in Grundy County, Illinois, part of the Chicago-Naperville-Elgin, IL-IN metro area. It has 1,401 residents. Mazon, Illinois has a quality-of-life score of 40 out of 100 (moderate), ranking #9,313 of 15,651 US cities and towns. Within Illinois it ranks #427 of 697 cities and towns. It ranks best on job growth (high), primary care shortage (low) and violent crime rate (low). It ranks worst on effective property tax rate (high), suicide rate (high) and new homes permitted (low).

40Moderate

Quality-of-life score: #9,313 of 15,651 cities and towns
Illinois: #427 of 697 in IL
Population: 1,401 (2020-2024)
Land area: 1 mi²
Density: 2,327.9 /mi²
FIPS code: 1747787

Percentile-based score (100 is the best in the country) from 74 of 80 indicators, with the default “Explorer” weights.

Open in the map

Scores by category

Each category averages its indicators' percentile scores among US cities and towns.

Safety71#4,487/15,637
Economy71#4,589/15,631
Housing27#10,887/14,977
Health56#6,832/15,609
Healthcare38#9,653/15,650
Environment15#13,204/15,453
Education25#11,735/15,649
Infrastructure33#10,423/15,650
Community56#6,861/15,651
Leisure & amenities59#6,432/15,651

Strengths · Weaknesses

Indicators where Mazon, Illinois ranks highest and lowest among US cities and towns (score = percentile, 100 = best). Values marked “Grundy County value” are the county’s: the source publishes no figure for this city or town, and the county holding most of its residents stands in.

Strengths

Job growth · high6.4%
99/100Illinois 0.0%United States 0.1%2026 Q1U.S. Bureau of Labor StatisticsProvisional dataGrundy County value
Primary care shortage · low0.0
90/100Illinois 6.6United States 6.2Oct 2026Health Resources and Services AdministrationGrundy County value
Violent crime rate · low86 /100k
90/100Illinois 251 /100kUnited States 328 /100k2025Federal Bureau of InvestigationGrundy County value
Property crime rate · low520 /100k
88/100Illinois 1,508 /100kUnited States 1,535 /100k2025Federal Bureau of InvestigationGrundy County value
Drug overdose deaths · low8.6 /100k
86/100Illinois 14.2 /100kUnited States 18.4 /100kMar 2025–Feb 2026Centers for Disease Control and PreventionModel-based estimateProvisional dataGrundy County value
Gyms and fitness centers · high1.9 /10k
85/100Illinois 1.1 /10kUnited States 1.3 /10k2025U.S. Bureau of Labor StatisticsGrundy County value

Weaknesses

Effective property tax rate · high2.30%
3/100Illinois 1.88%United States 0.94%2020-2024U.S. Census Bureau Census table B25090
Suicide rate · high24.3 /100k
10/100Illinois 11.7 /100kUnited States 14.1 /100kMay 2025–Apr 2026Centers for Disease Control and PreventionProvisional dataGrundy County value
New homes permitted · low0.0 /1k
13/100Illinois 1.5 /1kUnited States 4.2 /1kSep 2025–Aug 2026U.S. Census BureauProvisional data
Primary care physicians · low36 /100k
17/100Illinois 82 /100kUnited States 76 /100k2022University of Wisconsin Population Health InstituteGrundy County value
Grocery stores · low1.1 /10k
19/100Illinois 1.9 /10kUnited States 1.7 /10k2025U.S. Bureau of Labor StatisticsGrundy County value
Dentists · low37 /100k
19/100Illinois 86 /100kUnited States 75 /100k2023University of Wisconsin Population Health InstituteGrundy County value

Trends

The largest changes over about five years, next to the country's over the same periods.

PopulationRising
1,145 (2015-2019) → 1,401 (2020-2024)
+22%5 yearsCensus table B01003US 328,329,953 → 340,003,797
Rent-burdened householdsWorsening
36.1% (2015-2019) → 68.8% (2020-2024)
+33 pts5 yearsCensus table B25070US 49.6% → 51.1%
Broadband subscriptionsImproving
78.7% (2015-2019) → 89.6% (2020-2024)
+11 pts5 yearsCensus table B28002US 82.7% → 91.0%
Rent as share of incomeWorsening
26.0% (2015-2019) → 34.3% (2020-2024)
+8.3 pts5 yearsCensus table B25071US 29.8% → 30.6%
Uninsured residents (under 65)Worsening
3.5% (2015-2019) → 10.3% (2020-2024)
+6.8 pts5 yearsCensus table B27010US 10.8% → 9.8%
Median household incomeImproving
$57,461 (2015-2019) → $73,750 (2020-2024)
+28%5 yearsCensus table B19013US $65,712 → $81,604

What changed in five years

How each measure moved between two periods about five years apart, read against whether more or less is better, the published margin of error and the same change in other places.

Over about five years, Mazon, Illinois improved on 1 of 12 measures with a comparison and declined on 2. 9 moved within the margin of error and 0 barely changed.

Earlier (2015-2019)
Latest (2020-2024)
Lower standingHigher standing

Position is the place's standing among cities and towns: further right is better, whichever way the measure counts.

Improved1

Broadband+11 points78.7% → 89.6%

Declined2

Rent burden+33 points36.1% → 68.8%
Rent / income+8.3 points26.0% → 34.3%

All 12 measures

Change of every measure of Mazon, Illinois between two periods about five years apart
Measure	Before	After	Change	Reading	Favourable vs peers
Average commute time	28.4 min2015-2019	24.3 min2020-2024	−4.1 min	Within the margin of error	86%
Bachelor's degree or higher	15.0%2015-2019	20.1%2020-2024	+5 points	Within the margin of error	68%
Broadband subscriptions	78.7%2015-2019	89.6%2020-2024	+11 points	Improved	64%
Effective property tax rate	2.36%2015-2019	2.30%2020-2024	−0.1 points	Within the margin of error	26%
High school diploma or higher	95.1%2015-2019	90.1%2020-2024	−5 points	Within the margin of error	6%
Home price to income ratio	2.6×2015-2019	2.8×2020-2024	+0.2×	Within the margin of error	69%
Income inequality (Gini index)	0.3802015-2019	0.4142020-2024	+0.035	Within the margin of error	24%
Median household income	$57,4612015-2019	$73,7502020-2024	+28%	Within the margin of error	52%
Poverty rate	10.1%2015-2019	9.6%2020-2024	−0.5 points	Within the margin of error	49%
Rent as share of income	26.0%2015-2019	34.3%2020-2024	+8.3 points	Declined	12%
Rent-burdened households	36.1%2015-2019	68.8%2020-2024	+33 points	Declined	2%
Unemployment rate	4.2%2015-2019	2.5%2020-2024	−1.6 points	Within the margin of error	77%

“Against peers” compares the change with the same change in the 14640 cities and towns that have the same two periods. It describes how common a change is, not why it happened.

Sources: American Community Survey 5-Year Estimates. Values are the latest and the one five years earlier of the same publisher dataset; datasets that changed publisher in between are never compared.

Survey estimates (American Community Survey) compare the two most recent 5-year windows that do not share years, so the margin of error of the difference holds. The 2015-2019 window predates the pandemic and 2020-2024 includes it.
A change counts only when it is larger than 1.645 times the square root of the two standard errors squared, summed (a 90% margin). Measures published without a margin must change by at least 5% to count.
“Against peers” compares the change with the same change in the 15651 cities and towns that have the same two periods. It describes how common a change is, not why it happened.
Standing is a percentile among the same places: 0 is the lowest value on the measure (or the worst when lower is better), 100 the best.

Cities and towns like Mazon, Illinois five years ago that improved

The places whose measures looked most like those of Mazon, Illinois in the earlier period, ranked by how many measures improved beyond the margin of error, minus how many declined. A comparison of published data, not a forecast and not advice.

For comparison, Mazon, Illinois itself moved −14.7 points in standing on average over the same 10 measures (standings of all places average about zero).

How the ranking works

Similarity is the root-mean-square difference of standings in the earlier period over the measures most places have. Places are ranked by measures that improved beyond the margin of error minus those that declined (a count that estimation noise in small places cannot inflate), then by the mean change of standing over the measures a place has in both periods. Only places with more improvements than declines and a rise in standing are listed. Standings are relative, so a place can improve in absolute terms and still lose standing.

Who lives here

Age, race and education of residents, from the American Community Survey. Shares are of all residents (age), residents of every origin (race) or adults 25 and over (education).

Age and sex

1,401 residents (±245)

Men
Women

80 and over†
70–79†
60–69†

Income

How household income is spread, not just the middle: each bar is the share of households in that income range.

Household income

519 households (±96)

Mazon, Illinois
Illinois share

Under $25k17%†88
$25k–50k17%†88
$50k–75k

Homes

Who owns and who rents, what homes cost, and what the housing stock looks like.

Owners and renters

519 households (±96)

Mazon, Illinois
Illinois share

Own81%420
Rent19%†99

Biggest shift since 2015–2019: Own (+22.1 points).

† Wide margin of error (more than 30% of the estimate): read with care.

Table view

Getting to work

How workers travel to their job and how long it takes them.

How people get to work

702 workers (±158)

Mazon, Illinois
Illinois share

Drive alone91%637
Carpool2.8%†20
Public transit0.0%0

Jobs and pay

What the largest occupations here pay, from the Bureau of Labor Statistics' Occupational Employment and Wage Statistics survey.

The Bureau of Labor Statistics publishes pay by metro area, not by county or city. The metro area page lists its largest occupations and lets you look up any job.

Pay in the Chicago-Naperville-Elgin, IL-IN

Local businesses

Employer businesses and sole proprietors by industry, per resident and against the state and the nation. Counts of businesses next to counts of people, not a measure of demand.

The Census Bureau publishes business counts by county, not by city, so these are the figures of Grundy County, the county holding most of Mazon's residents.

Grundy County has 1,202 employer establishments, 224 for every 10,000 residents (0.90× the US rate of 248; 0.88× Illinois's), with 17,169 paid employees at an average annual pay of $60,715. The Census Bureau also counts 3,548 nonemployer businesses, mostly sole proprietors.

Establishments: 1,202; 3,548 nonemployers
Per 10,000 residents: 224; US 248 · Illinois 255
Paid employees: 17,169
Average annual pay: $60,715; US $68,342

Employer establishments, employees, average pay and nonemployers of Grundy County by industry, with the density per resident against the nation

Ambulatory health care services	123	23	1.10×About typical	920	$72,980	127
Restaurants and other eating places	102	19	1.04×About typical	1,713	$18,563	14
Specialty trade contractors	96	17.9	1.16×About typical	821	$83,281	235
Truck transportation	52	9.7	1.92×More than typical	297	$90,088	141
Limited-service restaurants	50	9.3	1.16×About typical	969	$17,976	9
Offices of physicians	50	9.3	1.44×More than typical	413	$100,656	19
Full-service restaurants	43	8	1.05×About typical	620	$18,866	4
Offices of other health practitioners	43	8	1.32×More than typical	186	$44,624	72
Automotive repair and maintenance	40	7.5	1.48×More than typical	198	$45,096	55
Building equipment contractors	34	6.3	1.06×About typical	561	$85,193	32
Construction of buildings	33	6.2	0.82×About typical	121	$77,207	72
Gasoline stations	32	6	1.84×More than typical	502	$33,078	—

Rank places for an industry Open Grundy County

County Business Patterns (2023); Nonemployer Statistics (2024)

Per-resident figures divide by the population estimate of 2023: 53,550 residents here, 336,755,052 in the United States. County Business Patterns counts establishments in 2023; the Nonemployer Statistics count businesses in 2024.
“More than typical” is a density at least 1.25 times the nation's per resident, “fewer” at most 0.8 times, with at least 10 establishments. It compares counts of businesses with counts of people: it says nothing about demand, incomes, size, quality or profit, and visitors and commuters are not residents.
The Census Bureau adds noise to employment and payroll to protect confidentiality, and withholds some figures: an industry with few establishments can show employees or pay as unavailable.
Industries overlap: a narrower industry (full-service restaurants) is part of a broader one (restaurants), so the rows do not add up.
Industries follow the North American Industry Classification System; the two surveys use different editions (NAICS 2017 and 2022), which this page matches industry by industry.

Federal contracts performed here

In FY2026, an estimated $0 of federal contract obligations were for work performed in Mazon, Illinois: $0 per resident (US $1,994).

Obligations: $0
Per resident: $0; US $1,994
Sole-source: —; US 30%
Single offer: —; US 8.8%

A signal is a reason to look closer, not evidence of wrongdoing: most sole-source awards are lawful and justified.

Top buying agencies

Top recipients

Spending by fiscal year

4.5KFY2024

What was bought

Source: Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov), data current to Oct 3, 2026, loaded Oct 3, 2026.

How this is estimated

Agencies report each contract action's place of performance as a county and a ZIP code. A ZIP code's money is split among the cities it covers by the share of its land inside each (Census 2020 ZIP code tabulation areas); the part outside city limits stays with the county.

The place of performance is what the contracting agency reports, often the contractor's office rather than where the work happens.
Shares are of land, not of people or businesses: a ZIP code that is mostly rural land but has its offices in town gives the town less than it should.
ZIP codes that are not mapped areas (post office boxes, the unique ZIP codes of large federal sites and companies) stay with their county, unless one city covers nearly all of it.
Counts of actions and awards include those only partly in Mazon, Illinois, so they do not add up across cities.

Mazon, Illinois's figures are part of those of Grundy County, IL ($582.5K in FY2026), never added to them: 0.0% of that total.

Grants and other federal assistance are counted by county here, not split among cities: Mazon is mostly in Grundy County.

See federal money in Grundy County

Representation in Congress

Members serving today, with their record in the current Congress (party-unity votes cast with their caucus, roll calls missed). Not a grade.

Mazon, Illinois is represented in the 119th Congress by these members.

House

Darin LaHoodR-IL-16 · 100% of residentsWith party 98%Missed 5.6%

Senate

Explore Congress The 2026 races

County

A city can lie in several counties. Some indicators are published for counties only: the page marks them.

Grundy County77100% of residents

Metro area

The metro or micro area the city belongs to.

Chicago-Naperville-Elgin, IL-IN66

Other cities and towns in Grundy County

Largest first.

Similar cities and towns

Closest indicator profiles across the country (no model: score distances).

Data and sources

Latest published value of each indicator; periods differ by source. Values flagged by their publisher are marked.

PLACES: Local Data for Better HealthCenters for Disease Control and Prevention · release 2025
Local Area Unemployment StatisticsU.S. Bureau of Labor Statistics · release 2025
American Community Survey 5-Year EstimatesU.S. Census Bureau · release 2017-2024
Building Permits SurveyU.S. Census Bureau · release 2026-08
Population Estimates ProgramU.S. Census Bureau · release 2025
Small Area Health Insurance EstimatesU.S. Census Bureau · release 2024
Small Area Income and Poverty EstimatesU.S. Census Bureau · release 2024
County Health Rankings & RoadmapsUniversity of Wisconsin Population Health Institute · release 2022-2025+2026-03-supplement

JSON · /api/v1/places/1747787

Scores by category

Strengths · Weaknesses

Strengths

Weaknesses

Trends