2020 census
Green Park city, Missouri – Racial and ethnic composition
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos may be of any race.| Race / Ethnicity (NH = Non-Hispanic) | Pop 2000 [7] | Pop 2010 [8] | Pop 2020 [9] | % 2000 | % 2010 | % 2020 |
|---|
| White alone (NH) | 2,594 | 2,395 | 2,341 | 97.30% | 91.34% | 86.54% |
| Black or African American alone (NH) | 0 | 36 | 46 | 0.00% | 1.37% | 1.70% |
| Native American or Alaska Native alone (NH) | 1 | 1 | 4 | 0.04% | 0.04% | 0.15% |
| Asian alone (NH) | 22 | 89 | 120 | 0.83% | 3.39% | 4.44% |
| Native Hawaiian or Pacific Islander alone (NH) | 1 | 1 | 0 | 0.04% | 0.04% | 0.00% |
| Other race alone (NH) | 0 | 0 | 8 | 0.00% | 0.00% | 0.30% |
| Mixed race or Multiracial (NH) | 16 | 56 | 84 | 0.60% | 2.14% | 3.11% |
| Hispanic or Latino (any race) | 32 | 44 | 102 | 1.20% | 1.68% | 3.77% |
| Total | 2,666 | 2,622 | 2,705 | 100.00% | 100.00% | 100.00% |
As of the census [10] of 2010, there were 2,622 people, 1,001 households, and 730 families living in the city. The population density was 1,942.2 inhabitants per square mile (749.9/km2). There were 1,034 housing units at an average density of 765.9 per square mile (295.7/km2). The racial makeup of the city was 92.5% White, 1.4% African American, 3.5% Asian, 0.1% Pacific Islander, 0.3% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 1.7% of the population.
There were 1,001 households, of which 29.4% had children under the age of 18 living with them, 58.0% were married couples living together, 10.0% had a female householder with no husband present, 4.9% had a male householder with no wife present, and 27.1% were non-families. 23.8% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.48 and the average family size was 2.92.
The median age in the city was 45.1 years. 20.3% of residents were under the age of 18; 6.3% were between the ages of 18 and 24; 23.3% were from 25 to 44; 28.2% were from 45 to 64; and 21.8% were 65 years of age or older. The gender makeup of the city was 47.3% male and 52.7% female.
2000 census
As of the census [4] of 2000, there were 2,666 people, 961 households, and 720 families living in the city. The population density was 1,909.0 inhabitants per square mile (737.1/km2). There were 985 housing units at an average density of 705.3 per square mile (272.3/km2). The racial makeup of the city was 97.86% White, 0.04% Native American, 0.83% Asian, 0.08% Pacific Islander, 0.53% from other races, and 0.68% from two or more races. Hispanic or Latino of any race were 1.20% of the population.
There were 961 households, out of which 31.3% had children under the age of 18 living with them, 61.8% were married couples living together, 9.6% had a female householder with no husband present, and 25.0% were non-families. 21.4% of all households were made up of individuals, and 10.0% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 2.95.
In the city, the population was spread out, with 21.3% under the age of 18, 6.6% from 18 to 24, 26.3% from 25 to 44, 22.8% from 45 to 64, and 23.0% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 84.6 males. For every 100 females age 18 and over, there were 79.2 males.
The median income for a household in the city was $49,069, and the median income for a family was $55,431. Males had a median income of $43,021 versus $29,934 for females. The per capita income for the city was $20,414. 3.1% of the population and 0.7% of families were below the poverty line. Out of the total population, none under the age of 18 and 10.3% of those 65 and older were living below the poverty line.
United States 
Missouri 
