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Zip Code 03584 — Lancaster, NH

03584 is a ZIP Code associated with Lancaster, NH, located within Coos. The postal region supports an estimated population of 3,501 residents across Data Pending housing units, with a population density of 21.8 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (44.486960, -71.542780)

Data Metric	Local Statistic
Postal / Zip Code	03584
Primary City	Lancaster
State / Province	NH
County	Coos
Total Population	3,501
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	21.8 people/sq mi
Timezone	America/New_York

How 03584 Compares

Metric	ZIP 03584	Coos County	NH State Average
Population	3,501	30,887	1,394,951
Median Income	Data Pending	N/A	N/A
Population Density	21.8 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 03583	Jefferson	7.2 mi	1,013	N/A
Zip 03598	Whitefield	8.6 mi	3,396	N/A
Zip 03582	Groveton	9.3 mi	1,949	N/A
Zip 03595	Twin Mountain	12.5 mi	648	N/A
Zip 03575	Bretton Woods	15.0 mi	11	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →