Plainfield, IL population, income and ZIP codes

Plainfield village is a small city in Illinois, with 45,705 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #32 of 1,462 ranked by population — larger than 97% of them. The median age here is 37.3 years against 39.1 nationally, a slightly younger profile than the country as a whole. 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 Plainfield village earn a median of $142,265 a year, 81.1% above the national figure of $78,538 and 92% 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 4.1% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Plainfield village is valued at $398,000, 31.2% above the national figure and 122% above the $179,100 peer median, while median gross rent runs $1,889 a month, 34.4% above the national figure, or roughly $22,668 across a full year. A household on the local median income would put about 15.9% 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 2.8×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 88.7% 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.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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.