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Cornwall Township, Illinois

Township in Henry County, Illinois · ZIP 61234, 61235

  • Henry County
  • Census data · ACS 2019-2023
Join Cornwall TownshipAsk Cornwall TownshipBusinessesPeople
  • 253 (2024 estimate)Population
  • 112Households
  • $107,679Median household income
  • $199,200Median home value
  • 2ZIP codes

About Cornwall Township

This page shows only what has been published about Cornwall Township: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−29.5%
2002503003502000: 31520002010: 27820102020: 2222020315222
Population of Cornwall Township at each census
CensusPopulation
2000315
2010278
2020222

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, county subdivision level, state 17, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county subdivision level, state 17, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county subdivision level, state 17, retrieved November 14, 2026.

Household income in Cornwall Township
Under $50k6.3%
$50k to $100k42.9%
$100k to $150k15.2%
$150k to $200k12.5%
$200k and over23.2%

Median household income $107,679 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county subdivision level, state 17, retrieved November 14, 2026.

Housing tenure in Cornwall Township
Owner occupied
98 units
Renter occupied
14 units
Vacancy rate
15.2%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 17, retrieved November 14, 2026.

Cornwall Township compared with its county and state
Cornwall Township compared with its county and state, American Community Survey 2019-2023
MeasureCornwall TownshipHenry CountyIllinois
Population33148,94812,692,653
Median household income$107,679$69,912$81,702
Median age41.543.438.9
Median home value$199,200$145,300$250,500
Bachelor’s degree or higher44.5%24.3%37.2%
Foreign-born residents0.0%1.6%14.4%
Owner-occupied homes87.5%80.4%66.8%
Mean commute to work25.8 minutes22.6 minutes28.1 minutes

Source: American Community Survey 5-year data profile 2019–2023, county subdivision level, state 17, retrieved November 14, 2026.

CommunityRules and moderation

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Events in Cornwall TownshipAll events

Coming up in Cornwall TownshipAll events

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Schools

No public school is listed for Cornwall Township: either the NCES directory for Illinois is not loaded yet, or no school's address falls inside Cornwall Township’s boundary. Schools in neighbouring towns are on their pages.

Legislative districts

Legislative districts for Cornwall Township3
Congressional and state legislative districts for Cornwall Township
ChamberDistrict
U.S. House of RepresentativesCongressional District 16 (IL-16)
State legislature, lower chamberState House District 93
State legislature, upper chamberState Senate District 47

Boundaries from the Census Bureau’s TIGER/Line district files, matched to Cornwall Township’s own boundary. Who holds each seat appears on the People page once the official records are approved.

Sources: Census cartographic boundaries 2025: congressional districts, 119th Congress, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, upper chamber, state 17, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, lower chamber, state 17, retrieved November 14, 2026.

Frequently asked about Cornwall TownshipPromoted from questions people asked

No question about Cornwall Township has been asked often enough to publish an answer yet. Ask Cornwall Township and the answer, once a person checks it, appears here.

Nearby towns

Other towns in Henry County

All towns in Henry County