Piatt ZIP codes — Piatt County, Illinois

Piatt County is a mid-size town in Illinois, with 16,702 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 42.5 years against 39.1 nationally, a slightly older 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 Piatt County earn a median of $87,516 a year, 11.4% above the national figure of $78,538. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 5.9% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Piatt County is valued at $173,200, 42.9% below the national figure, while median gross rent runs $950 a month, 32.4% below the national figure, or roughly $11,400 across a full year. A household on the local median income would put about 13% 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×, 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. 85.4% 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.

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.