Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/IL/COUNTY/HENRY

Henry County, IL ZIP codes

There are 16 ZIP codes in Henry County, IL, in 16 towns, from 61233 to 61490. The largest are 61443 (Kewanee), 61254 (Geneseo) and 61241 (Colona). 1 more crosses into it from a neighbouring county: 61277.

The county seat is Cambridge.

ZIP codes
16
Partly in it
1 more
Towns
16
County seat
Cambridge
County FIPS
17073
Population
48,643
Median household income
$71,911
Land area
823 sq mi
Area code
309

Henry County ZIP codes by town

Cambridge (county seat)
61238

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Henry County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Henry County.

Map of Henry County ZIP codes

61233612346123561238612416125461258612626127361274614136141961434614436146861490

The ZIP codes of Henry County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Henry County in numbers

About 48,643 people live in Henry County, in 20,272 households, the 30th most populous of Illinois's 102 counties. The median household income is $71,911 a year, 14% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $151,600 (42% below the Illinois median), and median gross rent is $842 a month. The median age is 43.6; 24.7% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 22 minutes.

Population48,643Henry48,643
Households20,272Henry20,272
Median age43.6Henry43.6Illinois39.0US 38.9
Median household income$71,911Henry$71,911Illinois$83,390US $80,734
Median home value$151,600Henry$151,600Illinois$263,300US $332,700
Median gross rent$842Henry$842Illinois$1,274US $1,413
Bachelor's degree or higher24.7%Henry24.7%Illinois37.8%US 35.7%
Mean commute22.2 minHenry22.2 minIllinois27.8 minUS 26.4 min
Population density59 / sq miHenry59 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Henry County

Largest towns in Henry County
TownZIP codesPopulation
Kewanee 1 11,913
Geneseo 1 6,673
Colona 1 5,139
Galva 1 2,454
Cambridge 1 2,128
Orion 1 1,812
Atkinson 1 982
Annawan 1 865
Alpha 1 831
Woodhull 1 731
Andover 1 434
Hooppole 1 182
Bishop Hill 1 134
Ophiem 1 92
Osco 1 74

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Henry County.

Not sure you are in Henry County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Henry County, with figures

ZIP codes in Henry County
ZIP City Type Population Median income Median home
61233 Andover , IL Standard 281 $71,667 $182,600
61234 Annawan , IL Standard 1,116 $79,688 $146,500
61235 Atkinson , IL Standard 1,283 $61,932 $132,800
61238 Cambridge , IL Standard 2,549 $64,583 $131,100
61241 Colona , IL Standard 6,587 $80,000 $165,900
61254 Geneseo , IL Standard 12,135 $92,297 $222,700
61258 Hooppole , IL Standard 182 $44,261 $75,000
61262 Lynn Center , IL Standard 1,197 $86,250 $244,700
61273 Orion , IL Standard 3,120 $99,032 $187,400
61274 Osco , IL Standard 197 $72,000 $128,800
61413 Alpha , IL Standard 1,035 $73,125 $120,100
61419 Bishop Hill , IL Standard 134 $56,429 $102,500
61434 Galva , IL Standard 2,971 $56,780 $100,100
61443 Kewanee , IL Standard 13,456 $52,615 $79,600
61468 Ophiem , IL Standard 92 $42,969 $96,800
61490 Woodhull , IL Standard 1,035 $65,625 $158,000

Cite this page

zipcodes.pro. “Henry County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/il/county/henry

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