2020 census
As of the 2020 census, Mission had a population of 85,778. The median age was 34.0 years. 28.5% of residents were under the age of 18 and 14.0% of residents were 65 years of age or older. For every 100 females there were 93.2 males, and for every 100 females age 18 and over there were 89.4 males age 18 and over.[11]
99.5% of residents lived in urban areas, while 0.5% lived in rural areas.[12]
There were 27,165 households in Mission, of which 44.4% had children under the age of 18 living in them. Of all households, 53.9% were married-couple households, 14.5% were households with a male householder and no spouse or partner present, and 27.1% were households with a female householder and no spouse or partner present. About 18.0% of all households were made up of individuals and 8.9% had someone living alone who was 65 years of age or older.[11]
There were 32,707 housing units, of which 16.9% were vacant. The homeowner vacancy rate was 1.6% and the rental vacancy rate was 10.1%.[11]
2000 census
As of the 2000 United States census, 45,408 people, 13,766 households, and 11,384 families lived in the city. The population density was 1,881.9 inhabitants per square mile (726.6/km2). The 17,723 housing units had an average density of 734.5/sq mi (283.6/km2). The racial makeup of the city was 77.63% White, 0.37% African American, 0.38% Native American, 1.63% Asian, 18.65% from other races, and 2.34% from two or more races. Hispanics or Latinos of any race were 81.03% of the population.
Of the 13,766 households, 43.4% had children under 18 living with them, 64.8% were married couples living together, 14.5% had a female householder with no husband present, and 17.3% were not families; 15.3% of all households were made up of individuals, and 9.1% had someone living alone who was 65 or older. The average household size was 3.29, and the average family size was 3.68.
In the city, the age distribution was 32.1% under 18, 9.8% from 18 to 24, 26.8% from 25 to 44, 17.1% from 45 to 64, and 14.2% who were 65 or older. The median age was 30 years. For every 100 females, there were 91.1 males. For every 100 females 18 and over, there were 85.3 males.
The median income for a household in the city was $30,647, and for a family was $33,465. Males had a median income of $25,710 versus $20,718 for females. The per capita income for the city was $12,796. About 22.6% of families and 26.8% of the population were below the poverty line, including 37.4% of those under 18 and 15.6% of those 65 or over.
The United States Postal Service operates a post office in the city.[14] Local ZIP codes include 78571, 78572, 78573, and 78574.