Rochester, New Hampshire

Rochester population, 2020 to 2024

Rochester added 1,077 residents from July 2020 to July 2024, a change of +3.3%. In the latest year it moved by +75. Among 13 New Hampshire places of 5,000 or more, that growth ranks 4th; the median place changed by +1.4%. The median place of 5,000+ in New Hampshire has 22,938 people, so Rochester is 1.5 times that size.

Rochester covers 45.02 square miles of land and 0.42 of water, for 746 people per square mile of land. The median New Hampshire place of 5,000+ has 746, so Rochester is close to the typical town.

What county Rochester is in

All of Rochester's residents live in Strafford County, which had 134,202 residents in 2024. Rochester holds 25.0% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Rochester

3 ZIP Code Tabulation Areas (ZCTAs) overlap Rochester by at least 10% of the ZCTA's or the city's land: 03839, 03867, 03868. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Rochester is

The Census internal point of Rochester is at 43.298500, -70.977000. Concord, the capital, is 28.9 miles WSW in a straight line. The nearest larger place is Dover, NH (33,909 people), 9.1 miles away. The nearest city of 100,000 or more is Manchester, NH, 32.0 miles away.

Daylight in Rochester

At 43.30° N, Rochester gets about 15 h 24 min of daylight around the June solstice and 8 h 58 min around the December solstice, a swing of 6 h 26 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Rochester

The eight nearest incorporated places of 1,000+ in New Hampshire, measured between internal points. The closest is Somersworth, 5.5 miles away, with 12,218 people.