PlainZIP

Markham, IL

Single-footprint Census roll-up for Markham, IL: 1 USPS ZIP, population 12,203. 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 MARKHAM-IL · Markham, IL 1 ZIPs · 12,203 pop · #17879/25278 · Cook County

INC-MID · RANK-LOWER · BELOW-PEER · BOOK-ONE · OWN-MID · POP-TOWN · SPREAD-UNK · HOME-LOW

  • INC-MID $60,000
  • RANK-LOWER #17879/25278
  • BELOW-PEER under Chicago Heights
  • BOOK-ONE 1 ZIP
  • OWN-MID 76% owners
  • POP-TOWN 12,203
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $136,000

Nearest income peer: Chicago Heights, IL (+ $2,073 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 Markham

Lowest/highest poles plus county-sharing cities nearest Markham 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, Markham, IL sits among US cities with a below-median household income, on a town-scale population base, across a single-ZIP footprint.

29th pct
household income vs 25,278 US cities
12,203
city population (Census)
1
USPS ZIP codes covered
$60,000
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.

Below-median income with few delivery areas (1): read cost-of-living from the primary ZIP. Household income $60,000 and poverty 18.5% concentrate in 60428.

Owner-occupancy sits in a mixed band (76.1%) - check the ZIP page's tenure split before treating Markham as a pure owner town.

Within Illinois, Saunemin is the closest lower-income city and Granite City the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Markham.

Population concentration

One ZIP, 60428, is all of Markham

There is no split to weigh here: 60428 holds every one of Markham's 12,203 ACS residents. City-level and ZIP-level numbers on this site are the same number twice, check the ZIP page for the income/tenure/commute breakdown.

Census ZBP business roll-up

Sparse ZBP book inside single-ZIP Markham

Citywide ZBP: 160 establishments, 3,809 employees , annual payroll $206,640k (~13 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 60428 (160 units) ; leading NAICS Transportation and warehousing (28) · also Other services (except public administration) · Construction .

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ZIP Codes in Markham, IL

These ZIP codes sit in Cook County, which covers 163 ZIP codes in all; 1 of them fall in Markham. See the Cook County roll-up →

Every one of the 12 cities sharing Cook County reports a higher average ZIP median income than Markham, Chicago, Des Plaines and Cicero among them. That gap is the county's income spread, not a measure of the housing or commute picture below. Evanston marks the far end of that range at $119,919, 100% above Markham.

ZIP Code Population Median income Establishments Density
60428 12,203 $60,000 160 907
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Markham 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 Markham, .