ZIP code · Lancaster · New Hampshire · United States
ZIP code 03584 — Lancaster
ZIP code 03584 serves Lancaster, New Hampshire.
- Postal code
- 03584Single source Value from one source, not cross-checked.
- City
- Lancaster
- County
- Coos
- State
- New Hampshire
- Country
- United States
- Coordinates
- 44.4921, -71.5591 — precision precise (locality)
View on OpenStreetMap - Population
- 3,439 (ZCTA, ACS 5-year)
- Median household income
- $92,797
- Median age
- 47.7
- Time zone
- America/New_York (UTC−5 / UTC−4 DST)
- Area code
- 603Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Nearby localities
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page