St. John city, Missouri demographics
Population: 6,617
Median age: 39.1
Median household income: 55,231
St. John is a city in St. Louis County, Missouri, United States.
Demographics, population, home values, social and economic characteristics of St. John city, MO.
Population
| 2021 | 6,617 |
| 2020 | 6,369 |
| 2019 | 6,396 |
| 2018 | 6,432 |
| 2017 | 6,426 |
| 2016 | 6,459 |
| 2015 | 6,491 |
| 2014 | 6,486 |
| 2013 | 6,500 |
| 2012 | 6,519 |
| 2011 | 6,549 |
| 2010 | 6,563 |
| 2009 | 6,437 |
Census data for St. John city, Missouri
Demographic and housing estimates in St. John city, Missouri
| Total population | 6,617 |
| Male | 3,391 |
| Female | 3,226 |
| Total population | 6,617 |
| Under 5 years | 347 |
| 5 to 9 years | 339 |
| 10 to 14 years | 437 |
| 15 to 19 years | 185 |
| 20 to 24 years | 407 |
| 25 to 34 years | 1,087 |
| 35 to 44 years | 1,147 |
| 45 to 54 years | 800 |
| 55 to 59 years | 330 |
| 60 to 64 years | 624 |
| 65 to 74 years | 686 |
| 75 to 84 years | 179 |
| 85 years and over | 49 |
| Median age (years) | 39.1 |
| Under 18 years | 1,210 |
| 16 years and over | 5,435 |
| 18 years and over | 5,407 |
| 21 years and over | 5,262 |
| 62 years and over | 1,286 |
| 65 years and over | 914 |
| Total population | 6,617 |
| One race | 6,416 |
| White | 3,339 |
| Black or African American | 2,312 |
| American Indian and Alaska Native | 0 |
| Asian | 272 |
| Native Hawaiian and Other Pacific Islander | 0 |
| Some other race | 493 |
| Two or more races | 201 |
| Citizen, VOTING AGE 18 and over population | 5,115 |
| Male Citizen, VOTING AGE 18 and over population | 2,611 |
| Female Citizen, VOTING AGE 18 and over population | 2,504 |
Social characteristics in St. John city, Missouri
| Total households | 2,702 |
| Family households (families) | 1,351 |
| Married-couple family | 216 |
| Male householder, no wife present, family | 502 |
| Female householder, no husband present, family | 242 |
| Nonfamily households | 633 |
| Average household size | 747 |
| Average family size | 2.43 |
Economic characteristics in St. John city, Missouri
| Total households | 2,702 |
| Less than $10,000 | 98 |
| $10,000 to $14,999 | 85 |
| $15,000 to $24,999 | 349 |
| $25,000 to $34,999 | 194 |
| $35,000 to $49,999 | 469 |
| $50,000 to $74,999 | 552 |
| $75,000 to $99,999 | 402 |
| $100,000 to $149,999 | 441 |
| $150,000 to $199,999 | 93 |
| $200,000 or more | 19 |
| Median household income (dollars) | 55,231 |
Housing characteristics in St. John city, Missouri
| Total housing units | 3,053 |
| Occupied housing units | 2,702 |
| Vacant housing units | 351 |
| Total housing units | 3,053 |
| 1-unit, detached | 2,791 |
| 1-unit, attached | 0 |
| 2 units | 127 |
| 3 or 4 units | 56 |
| 5 to 9 units | 28 |
| 10 to 19 units | 0 |
| 20 or more units | 0 |
| Mobile home | 51 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 3,053 |
| Built 2014 or later | 0 |
| Built 2010 to 2013 | 18 |
| Built 2000 to 2009 | 0 |
| Built 1990 to 1999 | 26 |
| Built 1980 to 1989 | 34 |
| Built 1970 to 1979 | 123 |
| Built 1960 to 1969 | 450 |
| Built 1950 to 1959 | 1,213 |
| Built 1940 to 1949 | 377 |
| Built 1939 or earlier | 812 |
| Total housing units | 3,053 |
| 1 room | 0 |
| 2 rooms | 33 |
| 3 rooms | 160 |
| 4 rooms | 615 |
| 5 rooms | 715 |
| 6 rooms | 826 |
| 7 rooms | 357 |
| 8 rooms | 160 |
| 9 rooms or more | 187 |
| Median rooms | 5.5 |
| Total housing units | 3,053 |
| No bedroom | 0 |
| 1 bedroom | 151 |
| 2 bedrooms | 1,804 |
| 3 bedrooms | 731 |
| 4 bedrooms | 347 |
| 5 or more bedrooms | 20 |
| Occupied housing units | 2,702 |
| Owner-occupied | 1,577 |
| Renter-occupied | 1,125 |
| Average household size of owner-occupied unit | 2.25 |
| Average household size of renter-occupied unit | 2.66 |
| Occupied housing units | 2,702 |
| Moved in 2017 or later | 184 |
| Moved in 2015 to 2016 | 678 |
| Moved in 2010 to 2014 | 401 |
| Moved in 2000 to 2009 | 703 |
| Moved in 1990 to 1999 | 412 |
| Moved in 1989 and earlier | 324 |
| Owner-occupied units | 1,577 |
| Less than $50,000 | 59 |
| $50,000 to $99,999 | 1,019 |
| $100,000 to $149,999 | 404 |
| $150,000 to $199,999 | 53 |
| $200,000 to $299,999 | 42 |
| $300,000 to $499,999 | 0 |
| $500,000 to $999,999 | 0 |
| $1,000,000 or more | 0 |
| Median (dollars) | 80,100 |
| Owner-occupied units | 1,577 |
| Housing units with a mortgage | 1,033 |
| Housing units without a mortgage | 544 |
| Occupied units paying rent | 1,080 |
| Less than $500 | 0 |
| $500 to $999 | 490 |
| $1,000 to $1,499 | 543 |
| $1,500 to $1,999 | 47 |
| $2,000 to $2,499 | 0 |
| $2,500 to $2,999 | 0 |
| $3,000 or more | 0 |
| Median (dollars) | 1,030 |
| No rent paid | 45 |
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