ZIP Code 16103
16103 is one of Pennsylvania's ZIP codes, delivering to addresses in New Castle, Lawrence County.
- City
- New Castle
- County
- Lawrence County
- State
- Pennsylvania
- Prefix
- 161xx
Where this code sits
16103 is part of the 161xx range, the group of codes handled by one mail processing centre. New Castle is served by 6 ZIP codes in total; the full list, with the county each falls in, is on the New Castle page.
New Castle Pennsylvania ZIP codes →
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 16103 delivers to without sharing its boundary.
ZIP codes nearest 16103
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 16107 | 0.0 mi | New Castle, PA |
| ZIP code 16108 | 0.0 mi | New Castle, PA |
| ZIP code 16101 | 1.1 mi | New Castle, PA |
| ZIP code 16105 | 3.1 mi | New Castle, PA |
| ZIP code 16102 | 4.6 mi | New Castle, PA |
| ZIP code 16160 | 5.0 mi | West Pittsburg, PA |
| ZIP code 16157 | 7.6 mi | Wampum, PA |
| ZIP code 16156 | 7.9 mi | Volant, PA |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 16103. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.