PlainZIP

Island Lake, IL

Single-footprint Census roll-up for Island Lake, IL: 1 USPS ZIP, population 8,547. 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 ISLAND-LAKE-IL · Island Lake, IL 1 ZIPs · 8,547 pop · #4471/25278 · McHenry County

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

  • INC-HIGH $99,917
  • RANK-TOP #4471/25278
  • PHOTO-FINISH ≈ Marengo
  • BOOK-ONE 1 ZIP
  • OWN-MID 83% owners
  • POP-TOWN 8,547
  • SPREAD-UNK Single-ZIP book
  • HOME-MID $259,100

Nearest income peer: Marengo, IL ( $1,466 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 Island Lake

Lowest/highest poles plus county-sharing cities nearest Island Lake 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, Island Lake, IL sits among US cities with an upper-quartile household income, on a town-scale population base, across a single-ZIP footprint.

Top 18%
household income vs 25,278 US cities
8,547
city population (Census)
1
USPS ZIP codes covered
$99,917
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 $99,917 and home value $259,100 should be read as near-neighborhood numbers ; bachelor's attainment averages 30.0%.

Owner-occupancy sits in a mixed band (82.9%) - check the ZIP page's tenure split before treating Island Lake as a pure owner town.

Within Illinois, Brimfield is the closest lower-income city and Waterman the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for Island Lake.

Population concentration

Island Lake reads through its lone ZIP, 60042

8,547 ACS residents, one ZIP: 60042 is not the leading code inside Island Lake, 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

Mid-pack ZBP load on Island Lake's one ZIP

Citywide ZBP: 164 establishments, 816 employees , annual payroll $34,876k (~19 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 60042 (164 units) ; leading NAICS Construction (29) · also Retail trade · Other services (except public administration) .

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ZIP Codes in Island Lake, IL

These ZIP codes sit in McHenry County, which covers 19 ZIP codes in all; 1 of them fall in Island Lake. See the McHenry County roll-up →

Island Lake lands mid-pack among the 12 cities sharing McHenry County: Crystal Lake, Algonquin and Lake In The Hills earn more and Mchenry, Woodstock and Huntley earn less. Crystal Lake marks the far end of that range at $134,196, 34% above Island Lake.

ZIP Code Population Median income Establishments Density
60042 8,547 $99,917 164 725
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

Island Lake 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 Island Lake, .