PlainZIP

Cortland, IL

Single-footprint Census roll-up for Cortland, IL: 1 USPS ZIP, population 4,560. 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 CORTLAND-IL · Cortland, IL 1 ZIPs · 4,560 pop · #12049/25278 · DeKalb County

INC-MID · RANK-MID · BELOW-PEER · BOOK-ONE · OWN-MID · POP-VILLAGE · SPREAD-UNK · HOME-MID

  • INC-MID $72,831
  • RANK-MID #12049/25278
  • BELOW-PEER under Shabbona
  • BOOK-ONE 1 ZIP
  • OWN-MID 79% owners
  • POP-VILLAGE 4,560
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $229,900

Nearest income peer: Shabbona, IL (+ $8,743 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 Cortland

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

Top 48%
household income vs 25,278 US cities
4,560
city population (Census)
1
USPS ZIP codes covered
$72,831
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 60112 (4,560 residents). Household income $72,831 is the roll-up; open the ZIP for tenure and commute.

Owner-occupancy sits in a mixed band (78.6%) - check the ZIP page's tenure split before treating Cortland as a pure owner town.

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

Population concentration

Cortland reads through its lone ZIP, 60112

4,560 ACS residents, one ZIP: 60112 is not the leading code inside Cortland, it is the only one on file. Treat the ZIP page as the primary source for anything below the city-wide total.

Census ZBP business roll-up

Sparse ZBP book inside single-ZIP Cortland

Citywide ZBP: 61 establishments, 947 employees , annual payroll $93,241k (~13 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 60112 (61 units) ; leading NAICS Construction (12) · also Manufacturing · Administrative and support and waste management and remediation services .

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ZIP Codes in Cortland, IL

These ZIP codes sit in DeKalb County, which covers 13 ZIP codes in all; 1 of them fall in Cortland. See the DeKalb County roll-up →

Cortland sits in the lower half of DeKalb County on income: Sycamore, Sandwich and Genoa report more, and only Dekalb reports less. Esmond marks the far end of that range at $117,750, 62% above Cortland.

ZIP Code Population Median income Establishments Density
60112 4,560 $72,831 61 476
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Cortland 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 Cortland, .