2020 census As of the
2020 census, Marquette Heights had a population of 2,541. The median age was 41.3 years. 22.2% of residents were under the age of 18 and 18.4% of residents were 65 years of age or older. For every 100 females there were 100.2 males, and for every 100 females age 18 and over there were 97.4 males age 18 and over. 100.0% of residents lived in urban areas, while 0.0% lived in rural areas. There were 1,011 households in Marquette Heights, of which 31.9% had children under the age of 18 living in them. Of all households, 54.3% were married-couple households, 14.8% were households with a male householder and no spouse or partner present, and 22.4% were households with a female householder and no spouse or partner present. About 22.7% of all households were made up of individuals and 11.7% had someone living alone who was 65 years of age or older. of 2000, there were 2,794 people, 982 households, and 815 families residing in the city. The population density was . There were 1,006 housing units at an average density of . The racial makeup of the city was 98.21%
White, 0.39%
African American, 0.07%
Native American, 0.25%
Asian, 0.39% from
other races, and 0.68% from two or more races.
Hispanic or
Latino of any race were 1.32% of the population. There were 982 households, out of which 38.9% had children under the age of 18 living with them, 68.1% were
married couples living together, 9.8% had a female householder with no husband present, and 17.0% were non-families. 14.1% of all households were made up of individuals, and 4.4% had someone living alone who was 65 years of age or older. The average household size was 2.85 and the average family size was 3.08. In the city, the population was spread out, with 28.5% under the age of 18, 8.2% from 18 to 24, 30.3% from 25 to 44, 25.1% from 45 to 64, and 7.9% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 101.3 males. For every 100 females age 18 and over, there were 98.7 males. The median income for a household in the city was $47,073, and the median income for a family was $50,714. Males had a median income of $40,870 versus $23,674 for females. The
per capita income for the city was $17,935. About 2.7% of families and 2.9% of the population were below the
poverty line, including 0.9% of those under age 18 and none of those age 65 or over. ==Transportation==