Belfast, ME population, income and ZIP codes

Belfast city is a mid-size town in Maine, with 6,985 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #23 of 155 ranked by population — larger than 85% of them. The median age here is 56.7 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 Belfast city earn a median of $61,322 a year, 21.9% below the national figure of $78,538 and 4% above the $58,992 median for the 106 Maine cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 18.2% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Belfast city is valued at $307,700, 1.4% above the national figure and 39% above the $221,600 peer median, while median gross rent runs $986 a month, 29.9% below the national figure, or roughly $11,832 across a full year. A household on the local median income would put about 19.3% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. 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. 67.3% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

A median age of 56.7 puts Belfast city 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.

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.