ZIP Code 27577

27577 is one of North Carolina's ZIP codes, delivering to addresses in Smithfield, Johnston County.

City: Smithfield
County: Johnston County
State: North Carolina
Prefix: 275xx

Where this code sits

27577 is part of the 275xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Smithfield.

Smithfield North Carolina ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 27577 delivers to without sharing its boundary.

ZIP codes nearest 27577

The ZIP codes whose reference points sit closest to 27577.
ZIP code	Distance	Delivers to
ZIP code 27576	5.8 mi	Selma, NC
ZIP code 27568	5.8 mi	Pine Level, NC
ZIP code 27593	5.8 mi	Wilsons Mills, NC
ZIP code 27524	8.1 mi	Four Oaks, NC
ZIP code 27555	9.0 mi	Micro, NC
ZIP code 27520	11 mi	Clayton, NC
ZIP code 27527	11 mi	Clayton, NC
ZIP code 27569	11 mi	Princeton, NC

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 27577, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 27577. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.