PlainZIP

Illiopolis, IL

Single-footprint Census roll-up for Illiopolis, IL: 1 USPS ZIP, population 1,358. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet ILLIOPOLIS-IL · Illiopolis, IL 1 ZIPs · 1,358 pop · #8412/25278 · Sangamon County

INC-HIGH · RANK-UPPER · PHOTO-FINISH · BOOK-ONE · OWN-HIGH · POP-VILLAGE · SPREAD-UNK · HOME-LOW

  • INC-HIGH $82,750
  • RANK-UPPER #8412/25278
  • PHOTO-FINISH ≈ Divernon
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 88% owners
  • POP-VILLAGE 1,358
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $123,400

Nearest income peer: Divernon, IL ( $562 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around Illiopolis

Lowest/highest poles plus county-sharing cities nearest Illiopolis on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, Illiopolis, IL sits among US cities with an above-median household income, on a village-scale population base, across a single-ZIP footprint.

Top 33%
household income vs 25,278 US cities
1,358
city population (Census)
1
USPS ZIP codes covered
$82,750
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

Above-median income on a short ZIP list (1) - lead code 62539 (1,358 residents). Household income $82,750 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy here runs high (87.6%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Illinois, Okawville is the closest lower-income city and Lena the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Illiopolis.

Population concentration

Illiopolis's single ZIP 62539 carries the town

Illiopolis is published as a single USPS ZIP. Code 62539 is the entire residential footprint (1,358 ACS residents), so the city page and the ZIP page tell the same household story, open that ZIP for income, tenure, and commute detail.

Census ZBP business roll-up

Sparse ZBP book inside single-ZIP Illiopolis

Citywide ZBP: 16 establishments, 69 employees , annual payroll $1,704k (~12 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 62539 (16 units) ; leading NAICS Retail trade (5) · also Accommodation and food services · Construction .

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ZIP Codes in Illiopolis, IL

These ZIP codes sit in Sangamon County, which covers 25 ZIP codes in all; 1 of them fall in Illiopolis. See the Sangamon County roll-up →

Illiopolis sits in the lower half of Sangamon County on income: Chatham, Rochester and Sherman report more, Springfield and New Berlin report less. Sherman marks the far end of that range at $139,196, 68% above Illiopolis.

ZIP Code Population Median income Establishments Density
62539 1,358 $82,750 16 11
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Illiopolis roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving Illiopolis, .