Racial and ethnic composition 2020 census As of the
2020 census, Wasco had a population of 27,047 and a population density of . The median age was 29.5 years. The age distribution was 28.3% under the age of 18, 12.2% aged 18 to 24, 33.7% aged 25 to 44, 18.5% aged 45 to 64, and 7.2% who were 65 years of age or older. For every 100 females there were 135.9 males, and for every 100 females age 18 and over there were 152.9 males age 18 and over. There were 6,109 households, of which 57.5% had children under the age of 18 living in them. Of all households, 52.1% were married-couple households, 8.7% were
cohabiting couple households, 25.2% had a female householder with no spouse or partner present, and 14.0% had a male householder with no spouse or partner present. About 11.7% of households were made up of individuals, and 4.8% had someone living alone who was 65 years of age or older. The average household size was 3.71. There were 5,123
families (83.9% of all households).
2010 census At the
2010 census Wasco had a population of 25,545. The population density was . The racial makeup of Wasco was 12,579 (49.2%) White, 1,951 (7.6%) African American, 283 (1.1%) Native American, 180 (0.7%) Asian, 12 (0.0%) Pacific Islander, 9,714 (38.0%) from
other races, and 826 (3.2%) from two or more races. Hispanic or Latino of any race were 19,585 persons (76.7%). The census reported that 19,825 people (77.6% of the population) lived in households, 10 (0%) lived in non-institutionalized group quarters, and 5,710 (22.4%) were institutionalized. There were 5,131 households, 3,143 (61.3%) had children under the age of 18 living in them, 2,894 (56.4%) were
opposite-sex married couples living together, 992 (19.3%) had a female householder with no husband present, 484 (9.4%) had a male householder with no wife present. There were 478 (9.3%)
unmarried opposite-sex partnerships, and 27 (0.5%)
same-sex married couples or partnerships. 575 households (11.2%) were one person and 243 (4.7%) had someone living alone who was 65 or older. The average household size was 3.86. There were 4,370 families (85.2% of households); the average family size was 4.11. The age distribution was 7,351 people (28.8%) under the age of 18, 3,687 people (14.4%) aged 18 to 24, 8,621 people (33.7%) aged 25 to 44, 4,593 people (18.0%) aged 45 to 64, and 1,293 people (5.1%) who were 65 or older. The median age was 28.3 years. For every 100 females, there were 160.3 males. For every 100 females age 18 and over, there were 192.5 males. There were 5,477 housing units at an average density of 581.1 per square mile, of the occupied units 2,680 (52.2%) were owner-occupied and 2,451 (47.8%) were rented. The homeowner vacancy rate was 5.1%; the rental vacancy rate was 4.0%. 10,486 people (41.0% of the population) lived in owner-occupied housing units and 9,339 people (36.6%) lived in rental housing units.
People in group quarters Source: • 7,975 people in
Wasco State Prison • 1,226 people in other types of correctional institutions • 10 people in homes for the mentally ill • 8 people in other non-institutional group quarters ==Economy==