Keystone, SD ZIP Code

ZIP code, county, time zone and coordinates of Keystone, South Dakota

The ZIP code of Keystone, SD is 57751. It is in Pennington County.

Mailing address format for Keystone

John Smith
123 Main St
KEYSTONE SD 57751
USA

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

All ZIP codes in Keystone

ZIP codePopulationArea
57751—44.2 sq miMain

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

Where is Keystone? Location, county and time zone

State
South Dakota
County
Pennington County
GPS coordinates
43.89494, -103.42681
Elevation
4,331 ft (1,320 m)
Time zone
America/DenverMST · UTC-07:00
Population
240

Map of Keystone, SD 57751

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ZIP codes near Keystone

Keystone ZIP code: FAQ

What is the ZIP code for Keystone, SD?

The main ZIP code for Keystone, SD is 57751.

How many ZIP codes does Keystone have?

Keystone has 1 ZIP code.

What county is Keystone, SD in?

Keystone is in Pennington County, South Dakota.

What time zone is Keystone in?

Keystone is in the America/Denver time zone (MST, UTC-07:00 right now).

What are the coordinates of Keystone?

Latitude 43.89494, longitude -103.42681.

Last updated: