Walworth County, South Dakota

Walworth County: county in South Dakota, United States

About

Walworth County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 5,438 and a population density of 7 people per km². After 10 years in 2020 county had an estimated population of 5,336 inhabitants. Its county seat is Selby. The county was created 153 years ago in 1872.

Walworth County locator map
Location of Walworth County on South Dakota map.

County Snapshot

Walworth County at a glance

Walworth County currently has 6 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

6

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Walworth County

Population 5,336 (2020)
Country United States of America
State South Dakota (United States)
Different from Walworth County
Area 745 km2
Water as percent of area 4.8%
Land as percent of area 95.2%
Latitude & Longitude 45.4300,-100.0316
Named for Walworth County
Capital Selby
Establishment January 01, 1873
Time Zone America/Chicago
Local time 22:32:25 (18th April 2026)
Density 7 Pop. per km² as of 2020
Population growth -1.91% (2010-2020)
Weather 21℉ Mostly Clear 7-days weather
Walworth County Court House '1911'  Selby  South Dakota '29360818481' image
Walworth County Court House '1911' Selby South Dakota '29360818481' image

Geography

Walworth County is located at 45°25'48"N 100°1'54"W (45.4299500, -100.0315600). It has 2 neighbors: Potter County and Campbell County.

Walworth County map

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The largest city of Walworth County is Mobridge with a population of 3,373. Other cities include, Selby population 612, Java population 125, Glenham population 103 and Akaska population 47. See all Walworth County cities & populated places.

Walworth County Populated Places

Cities, towns, neighborhoods & other populated places in Walworth County.

City Name Population Title
Mobridge 3,373 City in South Dakota, United States of America
Selby 612 City in and county seat of Walworth County, South Dakota, United States
Java 125 Human settlement in Walworth County, South Dakota, United States of America
Glenham 103 Town in South Dakota, United States of America
Akaska 47 Town in South Dakota, United States of America
Lowry 6 Town in South Dakota, United States of America

Weather

21°F
Mostly Clear
14 to 18 mph NW Tonight

Mostly clear, with a low around 21. Northwest wind 14 to 18 mph, with gusts as high as 28 mph.

7-Day Forecast

Official website of Walworth County

Official Website
  • Selby

Demographics

According to census records, the population of Walworth County decreased by 1.91% in 10 years.

Year Population % Change Method
2010 5,438 - census
2011 5,559 2.18% estimation process
2012 5,446 -2.07% estimation process
2013 5,484 0.69% estimation process
2014 5,502 0.33% estimation process
2015 5,404 -1.81% estimation process
2016 5,472 1.24% estimation process
2017 5,497 0.45% estimation process
2018 5,477 -0.37% estimation process
2019 5,435 -0.77% estimation process
2020 5,336 -1.86% estimation process
Comitatul Walworth, Comte de Walworth, Comté de Walworth, Condado de Walworth, Condado han Walworth, Contea di Walworth, Hrabstwo Walworth, Okrug Volvort, Quan Walworth, Quận Walworth, Uoluort, Uoluurt, Volvort, Walworth, Walworth Kun, Walworth Kūn, Walworth konderria, Walworth megye, Walworthi maakond, mqatʿt walwrth, raalaraartha ka'unti, shhrstan walwrs dakwtay jnwby, u~oruwasu jun, wo er wo si xian, Волворт, Округ Волворт, Уолуорт, Уолуърт, Ուոլվորթ շրջան, شهرستان والورس، داکوتای جنوبی, مقاطعة والورث, والورتھ کاؤنٹی, والورتھ کاؤنٹی، جنوبی ڈکوٹا, ৱালৱার্থ কাউন্টি, ウォルワース郡, 沃爾沃思縣

Other places with the same name (1)

South Dakota Other Counties (more counties)

County Name Population Title
Minnehaha County 196,659 County in South Dakota, United States of America
Sioux Falls 157,584 The largest city in South Dakota.
Pennington County 115,926 County in South Dakota, United States of America
Rapid City 77,503 The second most populous city in South Dakota.
Lincoln County 63,019 County in South Dakota, United States
Brown County 38,738 County in South Dakota, United States
Brookings County 35,603 County in South Dakota, United States of America
Meade County 28,588 County in South Dakota, United States
Codington County 28,186 County in South Dakota, United States of America
Lawrence County 26,221 County in South Dakota, United States
Yankton County 22,742 County in South Dakota, United States
Watertown 22,303 City in and county seat of Codington County, South Dakota, United States
Davison County 19,812 County in South Dakota, United States of America
Beadle County 18,513 County in South Dakota, United States
Hughes County 17,336 County in Oklahoma, United States
Union County 16,192 County in South Dakota, United States