Newmarket, NH population, income and ZIP codes

Newmarket CDP is a mid-size town in New Hampshire, with 5,730 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #23 of 100 ranked by population — larger than 77% of them. The median age here is 35.9 years against 39.1 nationally, a slightly younger profile than the country as a whole. 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 Newmarket CDP earn a median of $83,871 a year, 6.8% above the national figure of $78,538 and 8% above the $77,368 median for the 65 New Hampshire cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 6.6% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Newmarket CDP is valued at $364,800, 20.2% above the national figure and 34% above the $271,300 peer median, while median gross rent runs $1,668 a month, 18.6% above the national figure, or roughly $20,016 across a full year. A household on the local median income would put about 23.9% 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 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 37.9% of occupied homes are owner-occupied versus 65% nationally, a renter-majority market, so rent figures matter more here than the home-value line. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

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.