North Plymouth, MA population, income and ZIP codes

North Plymouth CDP is a small town in Massachusetts, with 4,458 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #129 of 248 ranked by population — larger than 48% of them. The median age here is 39 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in North Plymouth CDP earn a median of $71,205 a year, 9.3% below the national figure of $78,538 and 28% below the $99,537 median for the 222 Massachusetts cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 18.3% of residents here, above the 12.4% national rate.

The typical owner-occupied home in North Plymouth CDP is valued at $456,600, 50.5% above the national figure and 8% below the $497,400 peer median, while median gross rent runs $1,787 a month, 27.1% above the national figure, or roughly $21,444 across a full year. A household on the local median income would put about 30.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is a stretch on median earnings. The home-price-to-income ratio works out to 6.4×, against roughly 3.9× nationally, so buying is out of reach on local earnings alone and the ownership market leans on outside income, equity or dual high earners. 41.3% of occupied homes are owner-occupied versus 65% nationally, a renter-majority market, so rent figures matter more here than the home-value line. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

Home values sit at 6.4× median household income, far past the 3.9× national mark, so ownership costs here are set by something other than local wages — second homes, retirees with equity, or commuters earning elsewhere.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. 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.