Willow Springs, IL population, income and ZIP codes

Willow Springs village is a mid-size town in Illinois, with 5,871 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #308 of 1,462 ranked by population — larger than 78% of them. The median age here is 45.4 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Willow Springs village earn a median of $103,429 a year, 31.7% above the national figure of $78,538 and 39% above the $74,244 median for the 698 Illinois cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 5.1% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Willow Springs village is valued at $370,900, 22.2% above the national figure and 107% above the $179,100 peer median, while median gross rent runs $1,328 a month, 5.5% below the national figure, or roughly $15,936 across a full year. A household on the local median income would put about 15.4% 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 3.6×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 86.6% 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. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

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.