Olathe is a statutory town in Montrose County, Colorado, United States. The population was 2,019 as of the 2020 census, up from 1,849 at the 2010 census. A post office called Olathe has been in operation since 1896. The community was named after Olathe, Kansas. Geography Olathe is located in northeastern Montrose County at , in the valley of the Uncompahgre River. U.S. Route 50 passes through the east side of the town, leading southeast to Montrose, the county seat, and northwest to Delta. According to the United States Census Bureau, the town has a total area of , all of it land. The Uncompahgre River passes along the western edge of the town, flowing northwest to the Gunnison River at Delta. Ash Mesa rises over the town to the west. Demographics As of the census of 2000, there were 1,573 people, 520 households, and 383 families residing in the town. The population density was . There were 571 housing units at an average density of . The racial makeup of the town was 74.44% White, 0.06% African American, 1.65% Native American, 0.32% Asian, 19.71% from other races, and 3.81% from two or more races. Hispanic or Latino of any race were 35.22% of the population. There were 520 households, out of which 41.5% had children under the age of 18 living with them, 59.0% were married couples living together, 10.2% had a female householder with no husband present, and 26.3% were non-families. 22.9% of all households were made up of individuals, and 11.7% had someone living alone who was 65 years of age or older. The average household size was 2.88 and the average family size was 3.44. In the town, the population was spread out, with 31.8% under the age of 18, 10.1% from 18 to 24, 24.7% from 25 to 44, 19.3% from 45 to 64, and 14.0% who were 65 years of age or older. The median age was 31 years. For every 100 females, there were 95.2 males. For every 100 females age 18 and over, there were 87.1 males. The median income for a household in the town was $26,286, and the median income for a family was $31,354. Males had a median income of $22,708 versus $18,077 for females. The per capita income for the town was $12,620. About 15.9% of families and 21.8% of the population were below the poverty line, including