Southwest, NC ZIP Codes

ZIP code, county, time zone and coordinates of Southwest, North Carolina

The ZIP code of Southwest, NC is 28540. Southwest has 2 ZIP codes: 28540, 28542. It is in Onslow County.

Mailing address format for Southwest

John Smith
123 Main St
SOUTHWEST NC 28540
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

All ZIP codes in Southwest

ZIP codePopulationArea
28540—110.3 sq miMain
28542—1.6 sq mi

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

Where is Southwest? Location, county and time zone

State
North Carolina
County
Onslow County
GPS coordinates
34.74342, -77.51773
Time zone
America/New YorkEST · UTC-05:00

Map of Southwest, NC 28540

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ZIP codes near Southwest

Southwest ZIP code: FAQ

What is the ZIP code for Southwest, NC?

The main ZIP code for Southwest, NC is 28540. All ZIP codes: 28540, 28542.

How many ZIP codes does Southwest have?

Southwest has 2 ZIP codes.

What county is Southwest, NC in?

Southwest is in Onslow County, North Carolina.

What time zone is Southwest in?

Southwest is in the America/New York time zone (EST, UTC-05:00 right now).

What are the coordinates of Southwest?

Latitude 34.74342, longitude -77.51773.

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