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Merrimack, NH ZIP code

The ZIP code for Merrimack, New Hampshire is 03054. It is in Hillsborough County.

Population in these ZIPs
28,176
Avg. median income
$127,300population-weighted
Typical home value
$529,300population-weighted
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ZIP codes within 10 miles

Merrimack, NH ZIP code list

Merrimack, NH ZIP codes
ZIP codePopulationMedian incomeTypical home value
0305428,176$127,303$529,300

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Merrimack

Frequently asked questions

What is the ZIP code for Merrimack, NH?

The ZIP code for Merrimack, NH is 03054.

What county is Merrimack, New Hampshire in?

Merrimack ZIP codes are in Hillsborough County.