ZIP Code 61340

ZIP code 61340 is classified by USPS as a standard delivery area and covers roughly 1.3 square miles in Mark, Putnam County, Illinois. The area is home to 292 residents, producing a population density of 221 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 61340 against Illinois and the nation.

On the economic side, the median household income for ZIP 61340 sits at $78,750 (2% below the Illinois average), while per-capita income is $38,583. The poverty rate stands at 10.3% and the unemployment rate at 2.6%. On housing, the median home value is $160,100 (17% below the state average) with median rent at $938 per month, and 73.5% of occupied units are owner-occupied, a direct signal of whether 61340 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 21.0% of adults hold a bachelor's degree or higher, the median age is 44.4, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Putnam County, so you can benchmark 61340 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →