What is the population of Fergus County?

The population of Fergus County, MT is 11,104.

Where is Fergus County located?

Fergus County, MT is located at latitude 47.2635700 and longitude -109.2243300. It is in United States.

What is the area of Fergus County?

The area of Fergus County, MT is 11267 km².

What is the elevation of Fergus County?

Fergus County, MT has an elevation of 1338 meters (4390 feet) above sea level.

What time zone is Fergus County in?

Fergus County, MT is in the America/Denver time zone.

How has the population of Fergus County changed?

The population of Fergus County, MT has decreased from 11,586 (2010) to 11,104 (2020), a change of -4.2%.

Fergus County, Montana

Fergus County: county in Montana, United States

About

Fergus County is a county located in the U.S. state of Montana. As of the 2010 census, the population was 11,586 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 11,104 inhabitants. Its county seat is Lewistown. The county was created 141 years ago in 1884.

Fergus County locator map — Location of Fergus County on Montana map.

County Snapshot

Fergus County at a glance

Fergus County currently has 5 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

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

Montana counties

Open related pages

Largest city

Lewistown

Population 5,905

Quick Facts about Fergus County

Population	11,104 (2020)
Country	United States of America
State	Montana (United States)
Area	11267 km²
Water as percent of area	0.2%
Land as percent of area	99.8%
Latitude & Longitude	47.2636,-109.2243
Named for	James Fergus
Altitude	4,058 feet / 1237 meters
Capital	Lewistown
Establishment	January 01, 1885
Time Zone	America/Denver
Local time	04:04:52 (19th April 2026)
Density	1 Pop. per km² as of 2020
Population growth	-4.34% (2010-2020)
Weather	33℉ Mostly Clear 7-days weather

Lewistown MT Fergus County Courthouse image

Geography

Fergus County is located at 47°15'49"N 109°13'28"W (47.2635700, -109.2243300). It has 2 neighbors: Blaine County and Petroleum County.

Fergus County map

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The largest city of Fergus County is Lewistown with a population of 5,905. Other cities include, Denton population 234, Winifred population 196, Moore population 182 and Grass Range population 105. See all Fergus County cities & populated places.

Fergus County Populated Places

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

City Name	Population	Title
Lewistown	5,905	City in Montana, United States
Denton	234	Town in Montana, United States
Winifred	196	Town in Montana, USA
Moore	182	Town of the United States
Grass Range	105	Town of the United States

Weather

33°F

Mostly Clear

9 to 14 mph SW Saturday Night

Mostly clear, with a low around 33. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.

7-Day Forecast

Official website of Fergus County

Official Website

Fergus County has 2 neighbours.

Blaine County county in northern Montana, United States
Petroleum County county in Montana, United States

Lewistown

Demographics

According to census records, the population of Fergus County decreased by 4.34% in 10 years.

Year	Population	% Change	Method
2010	11,586	-	census
2011	11,461	-1.09%	estimation process
2012	11,391	-0.61%	estimation process
2013	11,464	0.64%	estimation process
2014	11,329	-1.19%	estimation process
2015	11,307	-0.19%	estimation process
2016	11,349	0.37%	estimation process
2017	11,281	-0.6%	estimation process
2018	11,117	-1.48%	estimation process
2019	11,050	-0.61%	estimation process
2020	11,104	0.49%	estimation process

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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