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zipcodes.pro — STATE/IL/COUNTY/COLES

Coles County, IL ZIP codes

Coles County, IL has 6 ZIP codes, in 6 towns: 61938, 61920, 61943, 61912, 62440 and 61931. 1 more crosses into it from a neighbouring county: 61910.

The county seat is Charleston.

ZIP codes
6
Partly in it
1 more
Towns
6
County seat
Charleston
County FIPS
17029
Population
46,777
Median household income
$56,478
Land area
508 sq mi
Area codes
217, 447

Coles County ZIP codes by town

Charleston (county seat)
61920

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 Coles County

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

Map of Coles County ZIP codes

619126192061931619386194362440

The ZIP codes of Coles 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.

Coles County in numbers

About 46,777 people live in Coles County, in 20,824 households, the 31st most populous of Illinois's 102 counties. The median household income is $56,478 a year, 32% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $127,400 (52% below the Illinois median), and median gross rent is $780 a month. The median age is 37.5; 26.9% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 18 minutes.

Population46,777Coles46,777
Households20,824Coles20,824
Median age37.5Coles37.5Illinois39.0US 38.9
Median household income$56,478Coles$56,478Illinois$83,390US $80,734
Median home value$127,400Coles$127,400Illinois$263,300US $332,700
Median gross rent$780Coles$780Illinois$1,274US $1,413
Bachelor's degree or higher26.9%Coles26.9%Illinois37.8%US 35.7%
Mean commute18.2 minColes18.2 minIllinois27.8 minUS 26.4 min
Population density92 / sq miColes92 / 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 Coles County

Largest towns in Coles County
TownZIP codesPopulation
Charleston 1 17,062
Mattoon 1 16,586
Oakland 1 862
Ashmore 1 721
Humboldt 1 329
Lerna 1 226

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 Coles County.

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

Every ZIP code in Coles County, with figures

ZIP codes in Coles County
ZIP City Type Population Median income Median home
61912 Ashmore , IL Standard 1,255 $74,954 $135,100
61920 Charleston , IL Standard 20,951 $52,429 $149,200
61931 Humboldt , IL Standard 1,350 $74,125 $135,000
61938 Mattoon , IL Standard 20,350 $57,503 $111,700
61943 Oakland , IL Standard 1,396 $54,196 $109,000
62440 Lerna , IL Standard 1,107 $79,605 $128,000

Cite this page

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

Underlying data is public domain or openly licensed — sources, vintages and licences.