There are 27 zip codes in Merrimack County, New Hampshire. The most populated is 3301, located in Concord. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
330133,986Concord
330316,118Concord
310614,654Hooksett
327512,028Suncook
32358,827Franklin
33048,235Bow
32426,094Henniker
32295,925Contoocook
33075,638Loudon
32344,846Epsom
32574,381New London
32634,093Pittsfield
32783,003Warner
30463,000Dunbarton
32582,659Chichester
32242,343Canterbury
32212,263Bradford
32162,041Andover
32551,899Newbury
32681,507Salisbury
32871,502Wilmot
32301,491Danbury
3260995North Sutton
3243902Hill
3273309South Sutton
3233209Elkins
3231110East Andover
showing: 27 rows

Zip Codes in Merrimack County, New Hampshire by Population (2024)