Lake Catherine, IL population, income and ZIP codes

Lake Catherine CDP is a small town in Illinois, with 1,091 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #674 of 1,462 ranked by population — larger than 53% of them. The median age here is 50.5 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. 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 Lake Catherine CDP earn a median of $94,821 a year, 20.7% above the national figure of $78,538 and 28% above the $74,244 median for the 698 Illinois cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 7.2% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Lake Catherine CDP is valued at $237,100, 21.9% below the national figure and 32% above the $179,100 peer median, while median gross rent runs $1,250 a month, 11.1% below the national figure, or roughly $15,000 across a full year. A household on the local median income would put about 15.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.5×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 78.3% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 50.5 puts Lake Catherine CDP well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.