Fort Thompson, South Dakota

Fort Thompson: census-designated place in Buffalo County, South Dakota, United States

About

Fort Thompson is a CDP located in the county of Buffalo in the U.S. state of South Dakota.

Fort Thompson locator map
Location of Fort Thompson on South Dakota map.

Quick Facts about Fort Thompson

Population 1,282
Country United States of America
State South Dakota (United States)
County Buffalo County
Postal code 57339
Phone Area Codes 605
Area 32.63 km2
Latitude & Longitude 44.0686,-99.4379
Altitude 1,440 feet / 439 meters
Establishment January 01, 1889 (137 years ago)
Time Zone Central Time Zone
Local time 19:29:32 (15th April 2026)
Weather 74℉ Sunny 7-days weather
Fort Thompson Mounds image
Fort Thompson Mounds image

Geography

Fort Thompson is located at 44°4'7"N 99°26'16"W (44.0686000, -99.4378800).

Fort Thompson map

Click "full screen" full screen map icon to open full mode. View satellite images

Weather

74°F
Sunny
6 to 10 mph W This Afternoon

Sunny, with a high near 74. West wind 6 to 10 mph.

7-Day Forecast
Fort Thompson zip code is 57339. County name: Buffalo, County fips: 46017

People born in Fort Thompson (2)

People born in Fort Thompson, including editor, essayist, poet, novelist, academic Elizabeth Cook-Lynn, politician Michael Jandreau, .

More notable people

Closest post offices linked to Fort Thompson.

Post Office Name City ZIP
Fort Thompson Post Office Fort Thompson (SD) 57339

Other cities in Buffalo County

Cities, towns, neighborhoods & other populated places in Buffalo County , SD.

City Name Population Title
Shelby 97 Township in Brown County, South Dakota

Distance to Other Cities

Fort Thompson distances to largest South Dakota cities