Plentywood is a city in and the county seat of Sheridan County, Montana, United States. The population was 2,061 at the 2000 census.
As of the census of 2000, there were 2,061 people, 857 households, and 522 families residing in the city. The population density was 1,756.1 people per square mile (680.1/km²). There were 1,020 housing units at an average density of 869.1/sq mi (336.6/km²). The racial makeup of the city was 97.14% White, 0.15% African American, 0.97% Native American, 0.44% Asian, 0.19% from other races, and 1.12% from two or more races. Hispanic or Latino of any race were 1.12% of the population.
There were 857 households out of which 27.7% had children under the age of 18 living with them, 53.2% were married couples living together, 5.7% had a female householder with no husband present, and 39.0% were non-families. 36.3% of all households were made up of individuals and 19.4% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 2.95.
In the city the population was spread out with 23.3% under the age of 18, 4.5% from 18 to 24, 23.0% from 25 to 44, 23.7% from 45 to 64, and 25.5% who were 65 years of age or older. The median age was 44 years. For every 100 females there were 88.7 males. For every 100 females age 18 and over, there were 85.8 males.
The median income for a household in the city was $30,037, and the median income for a family was $37,679. Males had a median income of $24,741 versus $20,662 for females. The per capita income for the city was $15,609. About 10.6% of families and 16.3% of the population were below the poverty line, including 14.0% of those under age 18 and 19.1% of those age 65 or over.
Plentywood is home to "Radio International", with the combined signals of KATQ 1070 and KATQ-FM 100.1. Both stations are located at 112 Third Avenue East. The stations serve the Northeast Montana, Western North Dakota and Southern Saskatchewan regions.
Plentywood is home to the largest high school in Sheridan County. A new school building was constructed on the previous site after a fire destroyed most of the original building in the early 1990s.
The athletic teams are known as the Plentywood Wildcats and compete in Montana's Class B High School Classification.
The 1976 boys basketball team won the Montana Class A title. In 1978, the boys basketball team won the Class B title after declining enrollment resulted in a downward classification. The 1979 boys basketball team finished as runners-up to the archrival Scobey Spartans at the State B Boys Basketball Tournament. The 2007 boys basketball team finished again as runners up but this time it was to Huntly Project at the State B Boys Tournament
The 1981 Plentywood Wildcats football team, coached by Ron Smith, beat the Big Timber Herders for the State B title in Big Timber.
In 1997 the Plentywood Wildcat football team also made it to the state championship losing to Frenchtown.
The 1999 and 2000 Girls' Golf Team won the State B-C title.
For 5 years from 1997-2001 Plentywood was the state champion girls' 4x400 relay winner
A number of stand out athletes have competed in Plentywood. Zoonie McLean Jr. was starting quarterback for the Montana State Bobcats in the late 60's and early 70's. Ron Marsh was a standout track and field/football player for PHS. He participated in the East/West Shrine Game his senior year and after that attended Minot State College. The 6-1, 245-pound defensive end earned All-Conference and All-District titles while playing his senior year in 1981. He also was chosen for the Honorable Mention All-American title. After his senior year he signed with the Denver Broncos. Former University of Montana Grizzly basketball coach Don Holst is a PHS graduate as is current University of Montana assistant football coach Kraig Paulson. Long time University of Montana Grizzly women's basketball coach Robin Selvig is a native of nearby Outlook and his first teaching job was at Plentywood High School.
Baseball was one of the early sports to gain popularity in the Plentywood area. In fact, the rivalry between Plentywood and Scobey, 42 miles to the west, got so heated in the 1920s that supporters of each town team were known to bring in professional players as ringers. Members of the Chicago Black Sox were reputed to have played a part in this diamond rivalry.
Plentywood is also the home of Dave 'Bobo' Collins, a former Navy Seal and professional wrestler whose life was documented in a made for TV movie produced by NBC.