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zipcodes.pro — STATE/IL/COUNTY/RANDOLPH

Randolph County, IL ZIP codes

There are 12 ZIP codes in Randolph County, IL, in 12 towns, from 62217 to 62297. The largest are 62233 (Chester), 62286 (Sparta) and 62288 (Steeleville). 1 more crosses into it from a neighbouring county: 62278.

The county seat is Chester.

ZIP codes
12
Partly in it
1 more
Towns
12
County seat
Chester
County FIPS
17157
Population
30,058
Median household income
$68,131
Land area
575 sq mi

Randolph County ZIP codes by town

Chester (county seat)
62233

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 Randolph County

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

Map of Randolph County ZIP codes

622176223362241622426225962261622726227762286622886229262297

The ZIP codes of Randolph 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.

Randolph County in numbers

About 30,058 people live in Randolph County, in 11,945 households, the 47th most populous of Illinois's 102 counties. The median household income is $68,131 a year, 18% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $135,100 (49% below the Illinois median), and median gross rent is $780 a month. The median age is 43.7; 15.2% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 23 minutes.

Population30,058Randolph30,058
Households11,945Randolph11,945
Median age43.7Randolph43.7Illinois39.0US 38.9
Median household income$68,131Randolph$68,131Illinois$83,390US $80,734
Median home value$135,100Randolph$135,100Illinois$263,300US $332,700
Median gross rent$780Randolph$780Illinois$1,274US $1,413
Bachelor's degree or higher15.2%Randolph15.2%Illinois37.8%US 35.7%
Mean commute23.1 minRandolph23.1 minIllinois27.8 minUS 26.4 min
Population density52 / sq miRandolph52 / 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 Randolph County

Largest towns in Randolph County
TownZIP codesPopulation
Chester 1 6,797
Sparta 1 4,068
Steeleville 1 1,855
Percy 1 921
Evansville 1 781
Tilden 1 762
Prairie Du Rocher 1 454
Ellis Grove 1 359
Baldwin 1 355
Walsh 1 158
Modoc 1 80

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 Randolph County.

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

Every ZIP code in Randolph County, with figures

ZIP codes in Randolph County
ZIP City Type Population Median income Median home
62217 Baldwin , IL Standard 767 $84,615 $146,300
62233 Chester , IL Standard 8,326 $84,556 $120,500
62241 Ellis Grove , IL Standard 879 $83,438 $148,800
62242 Evansville , IL Standard 1,660 $60,400 $121,800
62259 Menard , IL No street area — — —
62261 Modoc , IL Standard 80 — —
62272 Percy , IL Standard 1,521 $50,938 $83,500
62277 Prairie Du Rocher , IL Standard 940 $67,969 $128,100
62286 Sparta , IL Standard 5,491 $61,220 $117,800
62288 Steeleville , IL Standard 2,820 $67,159 $177,500
62292 Tilden , IL Standard 762 $47,857 $70,300
62297 Walsh , IL Standard 158 $90,938 $120,800

Cite this page

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

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