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Lancaster, NH ZIP code

The ZIP code for Lancaster, New Hampshire is 03584. It is in Coos County.

Population in these ZIPs
3,501
Avg. median income
$66,800population-weighted
Typical home value
$299,800population-weighted
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ZIP codes within 10 miles

Lancaster, NH ZIP code list

Lancaster, NH ZIP codes
ZIP codePopulationMedian incomeTypical home value
035843,501$66,768$299,800

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

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Frequently asked questions

What is the ZIP code for Lancaster, NH?

The ZIP code for Lancaster, NH is 03584.

What county is Lancaster, New Hampshire in?

Lancaster ZIP codes are in Coos County.