Year Built

Massachusetts contains 685 ZIP codes across 14 counties. With an estimated population of 6,992,213 residents and a median age of 40.64 years, it is a middle-aged state in terms of demographics.

Economically, Massachusetts is broadly a upper-middle-income state. The median household income of $109,539 is above the national average. The statewide unemployment rate is 5.2%, near the national average. Approximately 9.7% of residents live below the poverty line.

Massachusetts has a premium housing market overall, with a median home value of $582,431 — more than double the national average. Median monthly rent across the state averages around $1,754. Homeownership stands at 63.1% statewide.

The population of Massachusetts is majority White (67.77%). Residents are broadly well-educated — 55.5% hold a bachelor's degree or higher, above the national average.

The 685 ZIP codes across Massachusetts vary widely in character — from dense urban cores to rural agricultural areas. Each of the 14 counties has its own economic profile, housing market, and demographic makeup. Browse by county below to find ZIP codes that match your specific needs, whether you're researching relocation, real estate, business demographics, or local government boundaries.

Looking for ZIP code data in Massachusetts? Every ZIP code page includes population counts, median household income, home values, rental rates, age distribution, race and ethnicity breakdown, education levels, commute data, and housing stock information — all sourced from the U.S. Census Bureau's American Community Survey.