Each edition grades its towns against each other only.
A town of 11,893, platted in 1819.
Few places in the country grade higher. Troy earns an A+, 27th among Illinois's 767 graded towns. The median household earns $112K, crime is low: it reports less per resident than 89% of U.S. towns, and it is healthier than 88% of U.S. towns. Its lowest mark, a B−, is in cost of living. Troy's schools rank ahead of 87% of Illinois towns. Troy has 2 places on the National Register of Historic Places, among them John Carney House and William W. Jarvis House. Most errands need a car: it is less walkable than 72% of U.S. towns.
Where Troy beats most towns.
9,888 counted in 2010 and 10,960 in 2020; an estimated 11,893 in 2025.
U.S. Census 2010 & 2020 counts · Census Bureau estimate, July 1, 2025
Each subject compared with towns across the country (schools within Illinois), ordered by how far Troy is from typical.
How TownRatings grades towns →
Its founding year, 1819, comes before those of 95% of the Illinois towns we grade with a known year.
Census counts: 648 in 1880, 10,960 in 2020. The archive holds 4 old photos and papers going back to 2013 and 6 maps from 1907 on.
2 places on the National Register of Historic Places.
Museums, parks, gardens and other places to visit around Troy. Close and well known come first.
Big draw11 mi State parkCahokia
Big draw17 mi Stadium & arenaThe Dome at America's Center
18 mi Stadium & arenaBusch Stadium
10 mi LandmarkMonks Mound
17 mi National ParkGateway Arch National Park2.2M visitors a year
20 mi Ancient sitePiasaCahokia: Thank You (24 Millions ) views, CC BY 2.0 · The Dome at America's Center: Paul Sableman, CC BY 2.0 · Busch Stadium: Lee Ann Ratledge, CC BY 4.0 · Monks Mound: Skubasteve834, CC BY-SA 3.0 · Gateway Arch National Park: Daniel Schwen, CC BY-SA 4.0 · Piasa: Burfalcy, CC BY-SA 3.0
Who provides power, water and the rest in Troy, and how to reach them.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
Ordered by what stands out in Troy.
Troy sends many workers across the state line, has less no health insurance than most of Illinois and sees little violent crime.
Violent crime is rare: 1 reported in 2025, 0.1 per 1,000 residents.
Troy’s violent crime rate is 0.1 per 1,000 residents, below both Illinois’ towns (1) and U.S. towns (1.6). The property crime rate in Troy is 4.4 per 1,000 residents.
| Troy | Illinois towns | U.S. towns | |
|---|---|---|---|
| Violent crimes per 1,000 (2025) | 0.1 per 1,000 residents | 1 | 1.6 |
| Property crimes per 1,000 (2025) | 4.4 per 1,000 residents | 7.9 | 9.9 |
FBI crime data, 2025 · crimes reported to police
Its widest gap with Illinois is no health insurance: 5.1% of those 18–64 have no health insurance, against 9.9% statewide.
8.3% of adults have diabetes in Troy, below both the Illinois town median (11%) and the median of U.S. towns (12%). 30% of adults have high blood pressure in Troy. Troy beats the Illinois average on 14 of 32 CDC measures and trails it on 0.
| Troy | Illinois towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 21% | 18% | 16% |
| Get no exercise (CDC PLACES) | 16% | 23% | 25% |
| Diabetes (CDC PLACES) | 8.3% | 11% | 12% |
| Fair or poor health (CDC PLACES) | 13% | 18% | 19% |
| What stands out | Troy | IL |
|---|---|---|
| Fewer uninsured adults | 5.1% | 9.9% |
| Fewer adults facing food insecurity | 8.6% | 15.9% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
29% of working residents cross a state line to work.
2% of Troy residents live below the poverty line. Jobs based in Troy grew to 2,809 in 2023, 307 more than in 2013. Most working residents leave Troy for work: only 8% work in town.
| Troy | Illinois towns | U.S. towns | |
|---|---|---|---|
| Below the poverty line | 2% | 8.4% | 9.6% |
| Median household income | $112,000 | $83,000 | $80,000 |
| Work from home | 12% | 11% | 11% |
Census LEHD 2023 · ACS
1.5 miles of trail in 2 parks and preserves. Tri-Township Park, at 87 acres with 1.1 miles of trail, is the biggest park or preserve.
| Troy | Illinois towns | U.S. towns | |
|---|---|---|---|
| Conserved land | 2.3% | 3.7% | 4.3% |
| Miles of trail per square mile | 0.2 miles per square mile | 0.3 | 0.4 |
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Tri-Township Park | 1.1 mi | 87 |
| 2. Meadow Drive Park | — | 1 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Troy has chilly winters and warm summers. Troy’s July high is 88°F.
NOAA U.S. Climate Normals, 1991–2020
Children under 18 are 30% of residents (22% statewide). Troy has grown 4.1% since 2020, to 11,893 residents in the Census Bureau’s 2025 estimate. 45% of adults 25 and older have a bachelor’s degree or more, vs 38% across Illinois.
| Troy | Illinois towns | U.S. towns | |
|---|---|---|---|
| Under 18 | 30% | 22% | 22% |
| Bachelor’s degree or more, 25+ | 45% | 29% | 29% |
| Median age | 35.2 years | 40.7 years | 40.5 years |
| Aged 65 or older | 14% | 19% | 18% |
53% women, 47% men
That’s an even split within the survey’s margin of ±2.8 points. Across Illinois, 50.6% of residents are women. Median age: women 37.3, men 34.2.
| Troy | IL | U.S. | |
|---|---|---|---|
| Under 10 | 16.7% | 11.5% | 11.6% |
| 10 to 17 | 13.2% | 10.4% | 10.3% |
| 18 to 24 | 4.1% | 9.1% | 9.1% |
| 25 to 34 | 15.7% | 13.6% | 13.7% |
| 35 to 44 | 14.8% | 13.3% | 13.2% |
| 45 to 54 | 9.5% | 12.4% | 12.2% |
| 55 to 64 | 12.1% | 12.8% | 12.7% |
| 65 to 74 | 9.2% | 10% | 10.2% |
| 75 and older | 4.8% | 7% | 7% |
| No diploma | 2.5% | 9.5% | 10.4% |
| High school | 16.5% | 25.1% | 26% |
| Some college | 24.7% | 19.2% | 19.1% |
| Associate’s | 11% | 8.3% | 8.8% |
| Bachelor’s | 27.7% | 22.6% | 21.6% |
| Graduate | 17.6% | 15.3% | 14.1% |
Census population estimates, 2025 · U.S. Census Bureau · ACS 2020-2024 5-year estimates
The typical Troy home is worth about $332,000, up 4.1% in a year, 12% above the Illinois typical home.
| Troy | Illinois towns | U.S. towns | |
|---|---|---|---|
| Median rent | $1,116 a month | $1,129 a month | $1,185 a month |
| Households that own their home | 74% | 75% | 73% |
Zillow Home Value Index · Redfin Data Center
Expected storm and flood damage is higher than in 58% of U.S. communities. One flood insurance claim has been paid in Troy since 2019.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
3 within 15 miles of the center of Troy
About 4 of every 100 Troy residents are enrolled in college, against 6 across Illinois.
Where Troy’s working residents go each day. Line width shows the share.
Census LEHD 2023
2 places in Troy on the National Register of Historic Places.
City in Illinois, United States
Troy is a city in Madison County, Illinois, United States. The population was 10,960 at the 2020 census, up from 9,888 in 2010. Troy is part of the St. Louis Metropolitan Statistical Area. Its namesake in Lincoln County, Missouri, is also part of this MSA, making it (along with the two O'Fallons in Illinois and Missouri) one of the few pairs of like-named municipalities to be part of the same MSA.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
3 towns share a border with Troy.
At #27 in IL, it grades higher overall than all 3 graded towns on its borders; Jarvis Township (A) comes closest.
| Town | IL rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| Troy | #27 | A+ | B− | A | A | A |
| Maryville | #253 | A− | B− | A− | C+ | A− |
| Jarvis Township | #107 | A | B− | — | A | A− |
| Collinsville Township | #407 | B | B | — | C+ | B |
Jarvis Township and Collinsville Township report no FBI crime data of their own. Compare Troy with a neighbor →
Short answers, built from the data on this page.
Yes, by almost any measure. Troy grades A+ overall, better than 97% of U.S. towns and #27 of 767 in Illinois. It grades A for health, A for safety and A for schools.
That is 4.1 years of the area's median household income ($80,196 across the St. Louis, MO-IL metro area). Cost of living, which also weighs rents, property taxes and how many households pay 30% or more of their income for housing, grades B−.
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