Big Timber is a city in, and the county seat of Sweet Grass County, Montana, United States. The population was 1,641 at the 2010 census.
Big Timber is located at 45°50′0″N 109°57′1″W / 45.83333°N 109.95028°W / 45.83333; -109.95028 (45.833224, -109.950361).
According to the United States Census Bureau, the city has a total area of 0.95 square miles (2.46 km), of which, 0.92 square miles (2.38 km) is land and 0.03 square miles (0.08 km) is water.
As of the census of 2010, there were 1,641 people, 751 households, and 429 families residing in the city. The population density was 1,783.7 inhabitants per square mile (688.7/km). There were 933 housing units at an average density of 1,014.1 per square mile (391.5/km). The racial makeup of the city was 95.9% White, 0.1% African American, 0.5% Native American, 0.7% Asian, 0.1% Pacific Islander, 0.5% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 1.8% of the population.
There were 751 households of which 28.0% had children under the age of 18 living with them, 43.5% were married couples living together, 9.5% had a female householder with no husband present, 4.1% had a male householder with no wife present, and 42.9% were non-families. 38.7% of all households were made up of individuals and 20.9% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.82.
The median age in the city was 45.5 years. 23.1% of residents were under the age of 18; 5.8% were between the ages of 18 and 24; 20.8% were from 25 to 44; 25.2% were from 45 to 64; and 25.2% were 65 years of age or older. The gender makeup of the city was 48.5% male and 51.5% female.
As of the census of 2000, there were 1,650 people, 711 households, and 430 families residing in the city. The population density was 1,752.6 people per square mile (677.7/km²). There were 812 housing units at an average density of 862.5 per square mile (333.5/km²). The racial makeup of the city was 96.61% White, 0.79% Native American, 0.30% Asian, 0.06% Pacific Islander, 0.73% from other races, and 1.52% from two or more races. Hispanic or Latino of any race were 1.70% of the population.
There were 711 households out of which 27.8% had children under the age of 18 living with them, 52.2% were married couples living together, 5.5% had a female householder with no husband present, and 39.5% were non-families. 34.7% 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 2.24 and the average family size was 2.92.
In the city, the population was spread out with 23.7% under the age of 18, 6.6% from 18 to 24, 23.2% from 25 to 44, 23.7% from 45 to 64, and 22.8% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 96.4 males. For every 100 females age 18 and over, there were 91.9 males.
The median income for a household in the city was $30,595, and the median income for a family was $38,869. Males had a median income of $29,000 versus $17,596 for females. The per capita income for the city was $17,569. About 9.3% of families and 10.8% of the population were below the poverty line, including 15.9% of those under age 18 and 7.6% of those age 65 or over.