Promise, South Dakota
Promise: Situated in Dewey County at an elevation of 1624 feet, this unincorporated community lies within the boundaries of the Cheyenne River Indian Reservation in north-central South Dakota.
About
Promise is a city located in the county of Dewey in the U.S. state of South Dakota.
Quick Facts about Promise
| State | South Dakota (United States) |
| County | Dewey County |
| Latitude & Longitude | 45.3328,-100.6038 |
| Time Zone | America/Denver |
| Local time | 09:04:28 (9th June 2026) |
| Weather | 59℉ Partly Cloudy 7-days weather |
Geography
Promise is located at 45°19'58"N 100°36'14"W (45.3327700, -100.6037500).
Promise map
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Weather
59°F
Partly Cloudy
5 to 12 mph E
Monday Night
Partly cloudy, with a low around 59. East wind 5 to 12 mph, with gusts as high as 21 mph.
7-Day ForecastClosest post offices linked to Promise.
| Post Office Name | City | ZIP |
|---|---|---|
| Trail City Post Office | Trail City (SD) | 57657 |
Other cities in Dewey County
Cities, towns, neighborhoods & other populated places in Dewey County , SD.
| City Name | Population | Title |
|---|---|---|
| North Eagle Butte | 1,954 | Census designated place in Dewey County, South Dakota, United States |
| Eagle Butte | 1,418 | City in Dewey and Ziebach counties in South Dakota, United States |
| Timber Lake | 491 | City in and county seat of Dewey County, South Dakota, United States |
| Virginia | 292 | Township in Union County, South Dakota |
| Isabel | 150 | Town in Dewey County, South Dakota, United States |
| Firesteel | 35 | Unincorporated community in South Dakota |
| Moreau | 27 | Township in Perkins County, South Dakota |