2020 census As of the
2020 census, Mountain View had a population of 4,215. The median age was 39.0 years. 25.2% of residents were under the age of 18 and 16.9% of residents were 65 years of age or older. For every 100 females there were 100.3 males, and for every 100 females age 18 and over there were 98.4 males age 18 and over. 0.0% of residents lived in urban areas, while 100.0% lived in rural areas. There were 1,428 households in Mountain View, of which 32.8% had children under the age of 18 living in them. Of all households, 45.9% were married-couple households, 23.0% were households with a male householder and no spouse or partner present, and 22.1% were households with a female householder and no spouse or partner present. About 25.9% of all households were made up of individuals and 12.1% had someone living alone who was 65 years of age or older. Of the 1,318 households, 34.6% had children under the age of 18 living with them. The average household size was 2.98. In the Mountain View CDP the population was spread out, with 29.6% under the age of 18, 8.8% from 18 to 24, 12.4% from 25 to 34, 18.0 from 35 to 49, 21.5% from 50 to 64, and 9.7% 65 or older. For every 100 females, there were 96.9 males. For every 100 males there were 103.2 females.
Income and poverty The median household income was $26,860 and the median income in 2000 for a family was $33,750. Males had a median income in 2000 of $24,250 versus $22,135 for females. The per capita income for the CDP in 2000 was $13,229. About 23.6% of families and 30.3% of the population were below the
poverty line in 2000, including 45.7% of those under age 18 and 5.0% of those age 65 or over. ==Education==