Lavina, Montana  Lavina is a town in Golden Valley County, Montana, United States. The population was 187 at the 2010 census. The town is situated on the north bank of the Musselshell River. Lavina is located at (46.295130, -108.939684). According to the United States Census Bureau, the town has a total area of , all land. This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters. According to the Köppen Climate Classification system, Lavina has a humid continental climate, abbreviated "Dfb" on climate maps. As of the census of 2010, there were 187 people, 79 households, and 52 families residing in the town. The population density was . There were 91 housing units at an average density of . The racial makeup of the town was 89.3% White, 0.5% Native American, 1.6% Asian, 3.7% from other races, and 4.8% from two or more races. Hispanic or Latino of any race were 3.7% of the population. There were 79 households of which 26.6% had children under the age of 18 living with them, 50.6% were married couples living together, 7.6% had a female householder with no husband present, 7.6% had a male householder with no wife present, and 34.2% were non-families. 32.9% of all households were made up of individuals and 11.4% had someone living alone who was 65 years of age or older. The average household size was 2.37 and the average family size was 3.00. The median age in the town was 44.5 years. 25.7% of residents were under the age of 18; 7.5% were between the ages of 18 and 24; 17.6% were from 25 to 44; 33.2% were from 45 to 64; and 16% were 65 years of age or older. The gender makeup of the town was 51.3% male and 48.7% female. As of the census of 2000, there were 209 people, 85 households, and 57 families residing in the town. The population density was 206.9 people per square mile (79.9/km²). There were 98 housing units at an average density of 97.0 per square mile (37.5/km²).