Spencer, MA population, income and ZIP codes

Spencer CDP is a mid-size town in Massachusetts, with 5,520 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #117 of 248 ranked by population — larger than 53% of them. The median age here is 50.8 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Spencer CDP earn a median of $59,618 a year, 24.1% below the national figure of $78,538 and 40% below the $99,537 median for the 222 Massachusetts cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 11.4% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Spencer CDP is valued at $297,700, 1.9% below the national figure and 40% below the $497,400 peer median, while median gross rent runs $1,052 a month, 25.2% below the national figure, or roughly $12,624 across a full year. A household on the local median income would put about 21.2% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 5×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 40.9% of occupied homes are owner-occupied versus 65% nationally, a renter-majority market, so rent figures matter more here than the home-value line. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

A median age of 50.8 puts Spencer CDP well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. 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.