Jarvis Township in pictures
The archive holds 2 old photos and papers going back to 1906 and 6 maps from 1907 on.
Explore the history →Each edition grades its towns against each other only.
A town of 16,209. Public schools that outperform most of Illinois.
Jarvis Township's standout: the median household earns $118K. Overall it grades A, 107th among Illinois's 767 graded towns. Its public schools beat 87% of Illinois towns on state tests and graduation and it is healthier than 85% of U.S. towns. 29% of residents are under 18 in Jarvis Township, against 22% in Illinois’ towns and 22% across U.S. towns. Tri-Township Park, at 89 acres with 1.1 miles of trail, is the biggest park or preserve.
Where Jarvis Township beats most towns.
14,232 counted in 2010 and 15,779 in 2020; an estimated 16,209 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 Jarvis Township is from typical.
How TownRatings grades towns →
The archive holds 2 old photos and papers going back to 1906 and 6 maps from 1907 on.
Explore the history →Museums, parks, gardens and other places to visit around Jarvis Township. Close and well known come first.
Big draw11 mi State parkCahokia
Big draw18 mi Stadium & arenaThe Dome at America's Center
18 mi Stadium & arenaBusch Stadium
11 mi LandmarkMonks Mound
17 mi National ParkGateway Arch National Park2.2M visitors a year
19 mi Stadium & arenaEnterprise CenterCahokia: 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 · Enterprise Center: Haaron755, CC BY-SA 3.0
Who provides power, water and the rest in Jarvis Township, 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 Jarvis Township.
Jarvis Township sends many workers across the state line and has less no health insurance than most of Illinois.
Its public schools are run by Triad CUSD 2. Three of its 5 schools are below, each with why it’s listed. The largest public high school is Triad High School, with 1,218 students.
| School | Level | Students | Letter |
|---|---|---|---|
| Triad Middle SchoolLargest public middle schoolGrades 6–8 | Grades 6–8 | 925 | A |
| Triad High SchoolLargest public high schoolGrades 9–12 | Grades 9–12 | 1,218 | A− |
| C A Henning SchoolTop results in townGrades PK–5 | Grades PK–5 | 706 | A− |
NCES · EDFacts · graded within IL on state tests and graduation
Its widest gap with Illinois is no health insurance: 5.5% of those 18–64 have no health insurance, against 9.9% statewide. Against the 5,962 U.S. towns with household incomes like Jarvis Township’s, it is healthier than 68%, a smaller edge than it has nationally: part of it comes with its incomes.
20% of Jarvis Township adults binge drink. Jarvis Township beats the Illinois average on 13 of 32 CDC measures and trails it on 1. 17% of Jarvis Township adults get no exercise outside work.
| Jarvis Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Binge drink (CDC PLACES) | 20% | 18% | 16% |
| Get no exercise (CDC PLACES) | 17% | 23% | 25% |
| Diabetes (CDC PLACES) | 9% | 11% | 12% |
| Fair or poor health (CDC PLACES) | 14% | 18% | 19% |
| What stands out | Jarvis Township | IL |
|---|---|---|
| Fewer uninsured adults | 5.5% | 9.9% |
| Fewer adults facing food insecurity | 9.4% | 15.9% |
| More adults who have had cancer | 8.5% | 7.6% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
28% of working residents cross a state line to work.
Most working residents leave Jarvis Township for work: only 9% work in town. 2.1% of residents live below the poverty line in Jarvis Township. Since 2013, Jarvis Township has added 218 jobs, to 3,096 in 2023.
| Jarvis Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Median household income | $118,000 | $83,000 | $80,000 |
| Below the poverty line | 2.1% | 8.4% | 9.6% |
| Work from home | 14% | 11% | 11% |
Census LEHD 2023 · ACS
Jarvis Township has chilly winters and warm summers. Jarvis Township’s July high is 88°F.
NOAA U.S. Climate Normals, 1991–2020
The median age in Jarvis Township is 36.2 years. Jarvis Township has grown 2.7% since 2020, to 16,209 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.
| Jarvis Township | Illinois towns | U.S. towns | |
|---|---|---|---|
| Bachelor’s degree or more, 25+ | 45% | 29% | 29% |
| Aged 65 or older | 14% | 19% | 18% |
| Median age | 36.2 years | 40.7 years | 40.5 years |
51% women, 49% men
That’s an even split within the survey’s margin of ±2.2 points. Across Illinois, 50.6% of residents are women. Median age: women 38.2, men 34.7.
| Jarvis Township | IL | U.S. | |
|---|---|---|---|
| Under 10 | 15.6% | 11.5% | 11.6% |
| 10 to 17 | 13.3% | 10.4% | 10.3% |
| 18 to 24 | 4.9% | 9.1% | 9.1% |
| 25 to 34 | 14.3% | 13.6% | 13.7% |
| 35 to 44 | 13.9% | 13.3% | 13.2% |
| 45 to 54 | 11.1% | 12.4% | 12.2% |
| 55 to 64 | 13.2% | 12.8% | 12.7% |
| 65 to 74 | 9.3% | 10% | 10.2% |
| 75 and older | 4.4% | 7% | 7% |
| No diploma | 2.4% | 9.5% | 10.4% |
| High school | 16% | 25.1% | 26% |
| Some college | 24.5% | 19.2% | 19.1% |
| Associate’s | 11.8% | 8.3% | 8.8% |
| Bachelor’s | 27.1% | 22.6% | 21.6% |
| Graduate | 18.3% | 15.3% | 14.1% |
Census population estimates, 2025 · U.S. Census Bureau · ACS 2020-2024 5-year estimates
Expected storm and flood damage is higher than in 57% of U.S. communities. Since 2008, 3 flood insurance claims have been paid out in Jarvis Township.
FEMA flood insurance claims · FEMA National Risk Index · OpenFEMA
1.5 miles of trail in 2 parks and preserves.
| Biggest places to walk | Trails | Acres |
|---|---|---|
| 1. Tri-Township Park | 1.1 mi | 89 |
| 2. Meadow Drive Park | — | 1 |
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
3 within 15 miles of the center of Jarvis Township
About 4 of every 100 Jarvis Township residents are enrolled in college, against 6 across Illinois.
Where Jarvis Township’s working residents go each day. Line width shows the share.
Census LEHD 2023
Township in Illinois, United States
Jarvis Township is located in Madison County, Illinois, in the United States. As of the 2010 census, its population was 14,232 and it contained 5,540 housing units. Jarvis Township was named in honor of John Jarvis, who made the first entry of land from the United States government on September 10, 1814 and died here on October 29, 1823. The township was first surveyed in 1806. The primary town when first started was known as Columbia and for some time its principal industry was the Jarvis grist mill, which supplied the milling needs for area farmers. In 1819, Columbia was expanded, platted, and its name was changed to Troy. The first settlement within its present boundaries was made by Mes…
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
5 towns share a border with Jarvis Township.
| Town | IL rank | Overall | Cost | Safety | Schools | Health |
|---|---|---|---|---|---|---|
| Jarvis Township | #107 | A | B− | — | A | A− |
| Collinsville Township | #407 | B | B | — | C+ | B |
| O'Fallon Township | #159 | A | C | — | A− | A |
| St. Jacob Township | #162 | A | C+ | — | A | A |
| Pin Oak Township | #302 | B+ | C− | — | A− | A− |
| Troy | #27 | A+ | B− | A | A | A |
Jarvis Township, Collinsville Township, O'Fallon Township, St. Jacob Township and Pin Oak Township report no FBI crime data of their own. Compare Jarvis Township with a neighbor →
Short answers, built from the data on this page.
By most measures, yes. Jarvis Township grades A overall, better than 91% of U.S. towns and #107 of 767 in Illinois. It grades A− for health and A for schools.
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−.