ZIP Code 20621

ZIP code 20621 is classified by USPS as a standard delivery area and covers roughly 36.1 square miles in Chaptico, St. Mary's County, Maryland. The area is home to 1,373 residents, producing a population density of 38 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 20621 against Maryland and the nation.

On the economic side, the median household income for ZIP 20621 sits at —, while per-capita income is $54,408. The poverty rate stands at 20.0% and the unemployment rate at 14.4%. On housing, the median home value is $481,100 (8% above the state average) with median rent at — per month, and 100.0% of occupied units are owner-occupied, a direct signal of whether 20621 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 15.8% of adults hold a bachelor's degree or higher, the median age is 63, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing St. Mary's County, so you can benchmark 20621 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 →