A post office called Garrison was established in 1883, and remained in operation until 1980. The community was named for William Lloyd Garrison, an abolitionist. who was also the father-in-law of Henry Villard, the man who finally pushed the Northern Pacific Railroad to completion in 1883. Garrison is just east of Gold Creek, Montana, where the 'golden spike' was driven on Sept. 8, 1883 to mark the completion of the line. Among others present for the occasion was former President Ulysses S. Grant.
Geography
Garrison is located at . According to the United States Census Bureau, the CDP has a total area of, all land.
Demographics
As of the census of 2000, there were 112 people, 50 households, and 34 families residing in the CDP. The population density was 11.7 people per square mile. There were 63 housing units at an average density of 6.6 per square mile. The racial makeup of the CDP was 91.96% White, 4.46% Native American, and 3.57% from two or more races. Hispanic or Latino of any race were 1.79% of the population. There were 50 households, out of which 22.0% had children under the age of 18 living with them, 52.0% were married couplesliving together, 8.0% had a female householder with no husband present, and 32.0% were non-families. 24.0% of all households were made up of individuals, and 10.0% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.62. In the CDP, the population was spread out, with 20.5% under the age of 18, 4.5% from 18 to 24, 23.2% from 25 to 44, 31.3% from 45 to 64, and 20.5% who were 65 years of age or older. The median age was 46 years. For every 100 females, there were 119.6 males. For every 100 females age 18 and over, there were 117.1 males. The median income for a household in the CDP was $33,250, and the median income for a family was $32,656. Males had a median income of $16,250 versus $28,250 for females. The per capita income for the CDP was $12,678. There were 35.5% of families and 36.4% of the population living below the poverty line, including 90.0% of under eighteens and none of those over 64.
