Fergus County is a county in the U.S. state of Montana. As of the 2020 census, the population was 11,446. Its county seat is Lewistown. The county was founded in 1885 and named for James Fergus, a Montana politician who was instrumental in creating the county.

Geography

According to the United States Census Bureau, the county has a total area of 4350 sqmi, of which 4340 sqmi is land and 11 sqmi (0.2%) is water.

Adjacent counties

Major highways

National protected areas

Military Installations

Demographics

2020 census

As of the census, of 2020, there were 11,446 people living in the county.

2010 census

As of the 2010 census, there were 11,586 people, 5,099 households, and 3,202 families living in the county. The population density was 2.7 PD/sqmi. There were 5,836 housing units at an average density of 1.3 /sqmi. The racial makeup of the county was 96.6% white, 1.2% American Indian, 0.2% black or African American, 0.2% Asian, 0.2% from other races, and 1.5% from two or more races. Those of Hispanic or Latino origin made up 1.5% of the population. In terms of ancestry, 30.8% were German, 15.9% were English, 14.7% were Norwegian, 12.8% were Irish, and 4.2% were American. Of the 5,099 households, 23.8% had children under the age of 18 living with them, 52.9% were married couples living together, 6.5% had a female householder with no husband present, 37.2% were non-families, and 32.6% of all households were made up of individuals. The average household size was 2.18 and the average family size was 2.75. The median age was 47.8 years. The median income for a household in the county was $37,607 and the median income for a family was $48,623. Males had a median income of $35,110 versus $21,225 for females. The per capita income for the county was $22,295. About 12.5% of families and 14.7% of the population were below the poverty line, including 24.2% of those under age 18 and 9.3% of those age 65 or over.

Politics

Since the 1964 election, the Republican candidate has been selected in every election.

Communities

City

Towns

Unincorporated communities

Former communities

Moulton

Census-designated places

Notable people