2020 census As of the
2020 census, Dixon had a population of 18,988. The population density was . The median age was 37.0 years, with 24.7% of residents under the age of 18, 8.9% aged 18 to 24, 27.1% aged 25 to 44, 25.4% aged 45 to 64, and 14.0% aged 65 or older. For every 100 females, there were 97.1 males, and for every 100 females age 18 and over, there were 94.2 males age 18 and over. The census reported that 100.0% of the population lived in households, 4 people (0.0%) lived in non-institutionalized group quarters, and no one was institutionalized. There were 6,374 households, of which 40.0% had children under the age of 18 living in them. Of all households, 56.1% were married-couple households, 7.5% were
cohabiting couple households, 13.6% had a male householder with no spouse or partner present, and 22.9% had a female householder with no spouse or partner present. About 17.6% of households were made up of individuals, and 8.6% had someone living alone who was 65 years of age or older. The average household size was 2.98, and there were 4,846 families (76.0% of all households). There were 6,554 housing units at an average density of . Of all housing units, 2.7% were vacant. Of occupied units, 65.9% were owner-occupied and 34.1% were occupied by renters. The homeowner vacancy rate was 0.6%, and the rental vacancy rate was 3.3%.
2023 ACS estimates In 2023, the US Census Bureau estimated that 17.2% of the population were foreign-born. Of all people aged 5 or older, 67.2% spoke only English at home, 28.2% spoke
Spanish, 2.6% spoke other
Indo-European languages, and 2.0% spoke Asian or Pacific Islander languages. Of those aged 25 or older, 83.9% were high school graduates and 24.3% had a bachelor's degree. The median household income was $98,798, and the
per capita income was $42,163. About 7.2% of families and 8.4% of the population were below the poverty line.
2010 census The
2010 United States census reported that Dixon had a population of 18,351. The population density was . The racial makeup of Dixon was 13,023 (71.0%)
White, 562 (3.1%)
African American, 184 (1.0%)
Native American, 671 (3.7%)
Asian, 58 (0.3%)
Pacific Islander, 2,838 (15.5%) from
other races, and 1,015 (5.5%) from two or more races.
Hispanic or
Latino of any race were 7,426 persons (40.5%). The Census reported that 100% of the population lived in households. There were 5,856 households, out of which 2,773 (47.4%) had children under the age of 18 living in them, 3,550 (60.6%) were
opposite-sex married couples living together, 790 (13.5%) had a female householder with no husband present, 339 (5.8%) had a male householder with no wife present. There were 327 (5.6%)
unmarried opposite-sex partnerships, and 26 (0.4%)
same-sex married couples or partnerships. 867 households (14.8%) were made up of individuals, and 301 (5.1%) had someone living alone who was 65 years of age or older. The average household size was 3.13. There were 4,679
families (79.9% of all households); the average family size was 3.47. The population was spread out, with 5,349 people (29.1%) under the age of 18, 1,816 people (9.9%) aged 18 to 24, 5,026 people (27.4%) aged 25 to 44, 4,608 people (25.1%) aged 45 to 64, and 1,552 people (8.5%) who were 65 years of age or older. The median age was 33.3 years. For every 100 females, there were 97.8 males. For every 100 females age 18 and over, there were 94.8 males. There were 6,172 housing units at an average density of , of which 3,902 (66.6%) were owner-occupied, and 1,954 (33.4%) were occupied by renters. The homeowner vacancy rate was 2.0%; the rental vacancy rate was 5.2%. 12,149 people (66.2% of the population) lived in owner-occupied housing units and 6,201 people (33.8%) lived in rental housing units. ==Notable sites==