Vista Santa Rosa first appeared as a
census designated place in the
2010 U.S. census. The median age was 35.3 years. The age distribution was 26.4% under the age of 18, 11.7% aged 18 to 24, 23.0% aged 25 to 44, 26.2% aged 45 to 64, and 12.8% who were 65 years of age or older. For every 100 females there were 109.7 males, and for every 100 females age 18 and over there were 106.0 males age 18 and over. There were 711 households, out of which 44.6% included children under the age of 18. Of all households, 56.4% were married-couple households, 5.9% were
cohabiting couple households, 19.1% had a female householder with no spouse or partner present, and 18.6% had a male householder with no spouse or partner present. About 11.4% of households were one person, and 4.8% had someone living alone who was 65 years of age or older. The average household size was 3.67. There were 596
families (83.8% of all households). There were 746 housing units at an average density of , of which 711 (95.3%) were occupied. Of these, 66.4% were owner-occupied, and 33.6% were occupied by renters. Of all housing units, 4.7% were vacant. The homeowner vacancy rate was 0.2% and the rental vacancy rate was 1.6%. ==References==