Southwest, PA ZIP Code

ZIP code, county, time zone and coordinates of Southwest, Pennsylvania

The ZIP code of Southwest, PA is 16420. It is in Warren County.

Mailing address format for Southwest

John Smith
123 Main St
SOUTHWEST PA 16420
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
16420—49.5 sq miMain

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
Pennsylvania
County
Warren County
GPS coordinates
41.66477, -79.55385
Time zone
America/New YorkEST · UTC-05:00
Population
427

Map of Southwest, PA 16420

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ZIP codes near Southwest

Southwest ZIP code: FAQ

What is the ZIP code for Southwest, PA?

The main ZIP code for Southwest, PA is 16420.

How many ZIP codes does Southwest have?

Southwest has 1 ZIP code.

What county is Southwest, PA in?

Southwest is in Warren County, Pennsylvania.

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 41.66477, longitude -79.55385.

Last updated: