Dover, New Hampshire

Dover population, 2020 to 2024

Dover added 1,126 residents from July 2020 to July 2024, a change of +3.4%. In the latest year it moved by +406. Among 13 New Hampshire places of 5,000 or more, that growth ranks 3rd; the median place changed by +1.4%. The median place of 5,000+ in New Hampshire has 22,938 people, so Dover is 1.5 times that size.

Dover covers 26.73 square miles of land and 2.32 of water, for 1,269 people per square mile of land. The median New Hampshire place of 5,000+ has 746, so Dover is denser than the typical town.

What county Dover is in

All of Dover's residents live in Strafford County, which had 134,202 residents in 2024. Dover holds 25.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Dover

1 ZIP Code Tabulation Area (ZCTA) overlaps Dover by at least 10% of the ZCTA's or the city's land: 03820. 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 Dover is

The Census internal point of Dover is at 43.186400, -70.883600. Concord, the capital, is 33.0 miles W in a straight line. The nearest larger place is Haverhill, MA (68,291 people), 29.7 miles away. The nearest city of 100,000 or more is Manchester, NH, 31.5 miles away.

Daylight in Dover

At 43.19° N, Dover gets about 15 h 23 min of daylight around the June solstice and 8 h 59 min around the December solstice, a swing of 6 h 24 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Dover

The eight nearest incorporated places of 1,000+ in New Hampshire, measured between internal points. The closest is Somersworth, 4.6 miles away, with 12,218 people.