Hillsborough ZIP codes — Hillsborough County, New Hampshire

Hillsborough County is a mid-size city in New Hampshire, with 424,732 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 41 years against 39.1 nationally, a slightly older profile than the country as a whole. At this size the Census also publishes one-year estimates; the five-year values used here are steadier and let you compare against smaller neighbours on the same basis.

Households in Hillsborough County earn a median of $100,436 a year, 27.9% above the national figure of $78,538. 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 6.5% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Hillsborough County is valued at $385,500, 27.1% above the national figure, while median gross rent runs $1,532 a month, 9% above the national figure, or roughly $18,384 across a full year. A household on the local median income would put about 18.3% 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 3.8×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 67.5% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. 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.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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.