Moreau, South Dakota

Moreau: township in Perkins County, South Dakota

About

Moreau is a township located in the county of Dewey in the U.S. state of South Dakota. Its population at the 2010 census was 20. After 10 years in 2020 city had an estimated population of 27 inhabitants.

Quick Facts about Moreau

Population 27 (2020)
Country United States of America
State South Dakota (United States)
County Dewey County
Latitude & Longitude 45.3558,-100.3979
Time Zone America/Denver
Local time 22:37:13 (15th April 2026)
Population growth 25.93% (2010-2020)
Weather 40℉ Partly Cloudy 7-days weather

Geography

Moreau is located at 45°21'21"N 100°23'52"W (45.3558200, -100.3979100).

Moreau map

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Weather

40°F
Partly Cloudy
7 mph S Tuesday Night

Partly cloudy, with a low around 40. South wind around 7 mph.

7-Day Forecast

Demographics

The population of Moreau increased by 25.93% in 10 years.

Year Population % Change Method
2010 20 - census
2011 29 31.03% estimation process
2012 30 3.33% estimation process
2013 29 -3.45% estimation process
2014 29 0% estimation process
2015 29 0% estimation process
2016 29 0% estimation process
2017 29 0% estimation process
2018 28 -3.57% estimation process
2019 28 0% estimation process
2020 27 -3.7% estimation process

Closest post offices linked to Moreau.

Post Office Name City ZIP
Mobridg Post Office Mobridge (SD) 57601

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