Round Lake Heights, IL population, income and ZIP codes

Round Lake Heights village is a small town in Illinois, with 2,585 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #456 of 1,462 ranked by population — larger than 68% of them. The median age here is 29.6 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 Round Lake Heights village earn a median of $75,556 a year, 3.8% below the national figure of $78,538 and within a couple of points of 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 15.7% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Round Lake Heights village is valued at $196,100, 35.4% below the national figure and 9% above the $179,100 peer median, while median gross rent runs $1,435 a month, 2.1% above the national figure, or roughly $17,220 across a full year. A household on the local median income would put about 22.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 2.6×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 80.7% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

A median age of 29.6 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.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. 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.