ZIP Code 04978

ZIP code 04978 is classified by USPS as a standard delivery area and covers roughly 39.2 square miles in Smithfield, Somerset County, Maine. The area is home to 799 residents, producing a population density of 20 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 04978 against Maine and the nation.

On the economic side, the median household income for ZIP 04978 sits at $107,917 (47% above the Maine average), while per-capita income is $55,791. The poverty rate stands at 5.8% and the unemployment rate at 5.3%. On housing, the median home value is $242,800 (14% below the state average) with median rent at $1,109 per month, and 88.9% of occupied units are owner-occupied, a direct signal of whether 04978 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 34.7% of adults hold a bachelor's degree or higher, the median age is 55.8, and the average commute is —. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Somerset County, so you can benchmark 04978 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 →