Richland County, Montana

Richland County: County in Montana, United States


Richland County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 9,746 and a population density of 2 people per km². After 10 years in 2020 county had an estimated population of 11,043 inhabitants. Its county seat is Sidney. The county was created 109 years ago in 1913.

Richland County locator map
Location of Richland County on Montana map.

Quick Facts about Richland County

Population : 11,043 (2020)
Country : United States of America
State : Montana (United States)
Different from : Richland County, Richland Parish, Richland County, Richland County, Richland County, Richland County
Area : 5447 km2
Water as percent of area : 0.9%
Land as percent of area : 99.1%
Capital : Sidney
Establishment : January 01, 1914
Time Zone : America/Denver
Local time : 01:32:42 (11th December 2023)
Density : 2 Pop. per km² as of 2020
Population growth : 11.74% (2010-2020)
Richland county courthouse image
Richland county courthouse
Richland county courthouse image


Richland County is located at 47°47'17"N 104°33'41"W (47.7879200, -104.5613400). It has 4 neighbors: Dawson County, Roosevelt County, McCone County and Wibaux County.

Richland County map

The largest city of Richland County is Sidney with a population of 6,297. . See all Richland County cities & populated places.

Richland County Populated Places

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

City Name Population Title
Sidney 6,297 City in Montana, United States
Fairview 882 Town in Richland County, Montana, United States

Richland County has 4 neighbours.

  • Sidney


The population of Richland County increased by 11.74% in 10 years.

Year Population % Change Method
2010 9,746 - census
2011 10,144 3.92% estimation process
2012 10,780 5.9% estimation process
2013 11,154 3.35% estimation process
2014 11,531 3.27% estimation process
2015 11,902 3.12% estimation process
2016 11,408 -4.33% estimation process
2017 11,027 -3.46% estimation process
2018 10,855 -1.58% estimation process
2019 10,803 -0.48% estimation process
2020 11,043 2.17% estimation process

Comitatul Richland, Comte de Richland, Comté de Richland, Condado de Richland, Condado han Richland, Contea di Richland, Hrabstwo Richland, Okrug Richland, Quan Richland, Quận Richland, Richland, Richland Kun, Richland Kūn, Richland konderria, Richland megye, Richlend, li qi lan xian, mqatʿt ratshland, ricalyanda ka'unti, ritchirando jun, shhrstan rychlnd mwntana, Округ Ричланд, Ричланд, Ричленд, Річленд, Ռիչլանդ շրջան, رچلینڈ کاؤنٹی، مونٹانا, رچلینڈ کاؤنٹی،مونٹانا, شهرستان ریچلند، مونتانا, مقاطعة راتشلاند, রিচল্যান্ড কাউন্টি, リッチランド郡, 里奇蘭縣

People born in Richland County (1)

Scott Staffanson was born in Richland County

Other places with the same name (6)

Montana Other Counties (more counties)

County Name Population Title
Yellowstone County 162,990 County in Montana, United States of America
Missoula County 121,630 County in Montana, United States
Billings 117,445 The most populous city in Montana.
Gallatin County 116,806 County in Montana, United States
Flathead County 105,851 County in Montana, United States
Cascade County 81,346 County in central Montana, United States
Missoula 76,848 The most populous city in Missoula County, Montana.
Lewis and Clark County 70,229 County in Montana, United States
Great Falls 58,353 Town in Cascade County, Montana, United States
Bozeman 50,970 Town in Gallatin County, Montana, United States
Ravalli County 45,002 County in Montana, United States
Silver Bow County 35,180 County in Montana, United States
Butte 34,190 Consolidated city-county in Montana, United States
Helena 33,737 State capital of Montana, United States and seat of Lewis and Clark County
Lake County 30,986 County in Montana, United States
Kalispell 25,329 City in Flathead County, Montana, United States