Custer Park, IL population, income and ZIP codes

Custer Park CDP is a very small community in Illinois, with 426 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #983 of 1,462 ranked by population — larger than 32% of them. The median age here is 29 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Custer Park CDP earn a median of $173,274 a year, 120.6% above the national figure of $78,538 and 133% above the $74,244 median for the 698 Illinois cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 4.7% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Custer Park CDP is valued at $218,800, 27.9% below the national figure and 22% above the $179,100 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 1.3×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 31% of occupied homes are owner-occupied versus 65% nationally, a renter-majority market, so rent figures matter more here than the home-value line. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

A median age of 29 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address. With 426 residents, a handful of survey responses moves every median on this page. Compare Custer Park CDP against its county rather than against national figures.

The Census withheld gross rent for Custer Park CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.