Postal reference / United States

16101New Castle, Pennsylvania

ZIP code 16101 is a United States postal code for New Castle, Pennsylvania. Its county association is Lawrence County. The map reference point is at 40.9922, -80.3284.

State / territory
Pennsylvania
Recorded place name
New Castle
County association
Lawrence
Estimated coordinate
40.9922, -80.3284
View on OpenStreetMap
ZIP prefix
161 · 45 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
69.229 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Other ZIP codes in New Castle, PA

New Castle has 6 ZIP codes in the reference dataset.

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
16103New CastlePALawrence1.1
16107New CastlePALawrence1.1
16108New CastlePALawrence1.1
16105New CastlePALawrence2.4
16102New CastlePALawrence3.7
16160West PittsburgPALawrence4.6
16116EdinburgPALawrence7.4
16157WampumPALawrence7.6

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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