PlainZIP

Frankfort, IL

Single-footprint Census roll-up for Frankfort, IL: 1 USPS ZIP, population 30,423. 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 FRANKFORT-IL · Frankfort, IL 1 ZIPs · 30,423 pop · #1280/25278 · Will County

INC-TOP · RANK-TOP · PHOTO-FINISH · BOOK-ONE · OWN-HIGH · POP-SMALL · SPREAD-UNK · HOME-MID

  • INC-TOP $136,730
  • RANK-TOP #1280/25278
  • PHOTO-FINISH ≈ Aurora
  • BOOK-ONE 1 ZIP
  • OWN-HIGH 94% owners
  • POP-SMALL 30,423
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $398,200

Nearest income peer: Aurora, IL ( $4 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 Frankfort

Lowest/highest poles plus county-sharing cities nearest Frankfort 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, Frankfort, IL sits among US cities with a top-decile household income, on a small-city population base, across a single-ZIP footprint.

Top 5%
household income vs 25,278 US cities
30,423
city population (Census)
1
USPS ZIP codes covered
$136,730
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.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $136,730 and home value $398,200 should be read as near-neighborhood numbers ; bachelor's attainment averages 48.5%.

Owner-occupancy here runs high (94.0%) - tenure is stable enough that the ZIP detail's owner share is the right next click, not a renter-heavy compare.

Within Illinois, Medinah is the closest lower-income city and New Lenox the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Frankfort.

Population concentration

Frankfort's single ZIP 60423 carries the town

Frankfort is published as a single USPS ZIP. Code 60423 is the entire residential footprint (30,423 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

Dense ZBP book packed into Frankfort's one ZIP

Citywide ZBP: 1,122 establishments, 12,744 employees , annual payroll $651,435k (~37 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 60423 (1,122 units) ; leading NAICS Health care and social assistance (158) · also Construction · Professional, scientific, and technical services .

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ZIP Codes in Frankfort, IL

These ZIP codes sit in Will County, which covers 31 ZIP codes in all; 1 of them fall in Frankfort. See the Will County roll-up →

Frankfort sits in the upper half of Will County on income: Joliet, Plainfield and Bolingbrook report less, while Naperville reports more. Crest Hill marks the far end of that range at $73,074, 47% below Frankfort.

ZIP Code Population Median income Establishments Density
60423 30,423 $136,730 1,122 322
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Frankfort 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 Frankfort, .