City · Missouri
Ballwin, Missouri
Ballwin, city, in St. Louis County, Missouri. Ballwin had 30,901 residents on July 1, 2025 by the Census Bureau's estimate, down 2.5% since 2020; the 2020 Census counted 31,103 and the ACS 2020-2024 5-year estimates put it at 31,279 (±51). GEOID 2903160.
Residents, July 2025 estimate
30,901
Census Bureau estimate (no margin published)
2020 Census count: 31,103 · ACS 2020-2024: 31,279 ±51
Median household income
$124,626
±$8,097 (90% margin)
Missouri: $70,702
Median home value
$377,100
±$9,965 (90% margin)
Missouri: $230,300
Median gross rent
$1,418
±$70 (90% margin)
Missouri: $1,033
Where is Ballwin and what county is it in?
Ballwin is a city in St. Louis County, Missouri. It covers 9.1 square miles of land, 3,424 residents per square mile in 2020.
Ballwin is in the St. Louis, MO-IL metropolitan statistical area, which takes in 15 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Ballwin, and is it growing?
The Census Bureau estimates that 30,901 people lived in Ballwin on July 1, 2025, down 2.5% since 2020, while Missouri grew 1.9%. The 2020 Census counted 31,103 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 31,279 (±51).
| Measure | Ballwin | St. Louis County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 31,279 ±51 | 995,569 | +1,027 |
| Households | 12,079 ±428 | 413,849 | no clear change |
| Average household size | 2.59 ±0.09 | 2.36 | no clear change |
| Housing units | 12,563 ±425 | 446,192 | no clear change |
Ballwin's population since 2000
From 31,283 in 2000 to 30,901 in 2025: down 1.2%. The 2000, 2010 and 2020 figures are census counts, each for Ballwin as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Ballwin?
The median resident of Ballwin is 42.6 years old; 22.3% are under 18 and 19.1% are 65 or older. The largest group is non-Hispanic white residents at 75.0%, then non-Hispanic Asian residents at 8.9%. 9.2% of residents were born outside the United States.
| Measure | Ballwin | St. Louis County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.6 ±2.8 | 40.3 | no clear change |
| Under 18 years | 22.3% ±1.8 pts | 22.0% | – |
| 65 years and over | 19.1% ±2.2 pts | 19.1% | – |
| Male | 50.2% ±1.5 pts | 47.8% | – |
| Hispanic or Latino (any race) | 4.1% ±1.6 pts | 3.9% | no clear change |
| White alone, not Hispanic | 75.0% ±3.8 pts | 61.4% | −13.2 pts |
| Black or African American alone, not Hispanic | 2.8% ±1.6 pts | 24.0% | no clear change |
| Asian alone, not Hispanic | 8.9% ±1.8 pts | 4.9% | +3.0 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 8.2% ±2.8 pts | 5.3% | – |
| Some other race alone, not Hispanic | 1.0% ±1.1 pts | 0.5% | – |
| Born outside the United States | 9.2% ±1.6 pts | 8.4% | no clear change |
| Speak a language other than English at home (age 5+) | 13.4% ±2.3 pts | 10.5% | – |
| Civilian veterans (age 18+) | 4.8% ±1.1 pts | 6.0% | – |
| With a disability | 8.9% ±1.8 pts | 12.1% | – |
| No health insurance coverage | 4.6% ±1.5 pts | 5.7% | no clear change |
| High school graduate or higher (age 25+) | 97.8% ±1.1 pts | 94.5% | – |
| Bachelor's degree or higher (age 25+) | 65.2% ±3.5 pts | 47.4% | +8.8 pts |
| Graduate or professional degree (age 25+) | 22.6% ±2.8 pts | 20.4% | – |
| Lived in the same house a year earlier | 89.3% ±2.7 pts | 88.2% | – |
| Moved from another state in the past year | 2.8% ±1.4 pts | 2.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Ballwin earn?
Half of Ballwin's 12,079 households earn less than $124,626 a year (±$8,097), against $82,936 in St. Louis County and $70,702 in Missouri. In 2015-2019 it was $121,531 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.8% of residents live below the poverty line.
| Measure | Ballwin | St. Louis County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $124,626 ±$8,097 | $82,936 | no clear change |
| Mean household income | $146,690 ±$11,272 | $123,036 | – |
| Per capita income | $57,442 ±$4,678 | $51,977 | no clear change |
| People below the poverty line | 4.8% ±2.0 pts | 9.8% | no clear change |
| Children under 18 below the poverty line | 5.5% ±4.0 pts | 13.5% | – |
| Households receiving SNAP | 2.3% ±1.1 pts | 8.0% | – |
| Households with a computer | 96.5% ±2.0 pts | 96.3% | – |
| Households with a broadband subscription | 95.0% ±2.1 pts | 93.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Ballwin?
Owners occupy 84.2% of Ballwin's occupied homes and renters 15.8%. The median owner-occupied home is valued at $377,100 by its owner (±$9,965). The median renter pays $1,418 a month including utilities, and 34.9% of renters pay 35% or more of their income on rent.
| Measure | Ballwin | St. Louis County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $377,100 ±$9,965 | $276,800 | +$54,781 |
| Median gross rent | $1,418 ±$70 | $1,209 | no clear change |
| Renters paying 35% or more of income on rent | 34.9% ±9.2 pts | 39.5% | no clear change |
| Median monthly owner costs, with a mortgage | $2,128 ±$73 | $1,753 | – |
| Owner-occupied homes | 84.2% ±2.4 pts | 69.2% | no clear change |
| Renter-occupied homes | 15.8% ±2.4 pts | 30.8% | – |
| Housing units | 12,563 ±425 | 446,192 | no clear change |
| Homeowner vacancy rate | 0.2% ±0.2 pts | 0.7% | – |
| Rental vacancy rate | 0.0% ±1.8 pts | 5.0% | – |
| Single-family detached homes | 81.2% ±3.0 pts | 72.0% | – |
| Mobile homes | 0.0% ±0.3 pts | 0.3% | – |
| Built 2020 or later | 0.0% ±0.3 pts | 0.7% | – |
| Built 2010 to 2019 | 2.7% ±1.1 pts | 3.5% | – |
| Built 1939 or earlier | 0.5% ±0.4 pts | 9.7% | – |
| Households with no vehicle | 2.3% ±1.1 pts | 6.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Ballwin building?
Builders took permits for 0 new housing units in Ballwin in 2025 (0 in single-family houses; the permit office reported 3 of 12 months), 0.0 per 1,000 residents against 2.8 across Missouri.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Ballwin work and get to work?
72.9% of Ballwin's workers drive alone and 20.7% work from home. The average trip to work takes 25.5 minutes. The unemployment rate in 2020-2024 averaged 2.9%.
| Measure | Ballwin | St. Louis County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 66.8% ±2.6 pts | 65.0% | – |
| Unemployment rate | 2.9% ±1.5 pts | 4.3% | no clear change |
| Drove alone to work | 72.9% ±2.6 pts | 71.3% | – |
| Carpooled | 4.5% ±1.5 pts | 6.4% | – |
| Public transportation | 0.2% ±0.2 pts | 1.4% | – |
| Walked | 0.6% ±0.5 pts | 1.4% | – |
| Worked from home | 20.7% ±2.5 pts | 18.3% | +13.0 pts |
| Mean travel time to work | 25.5 min ±1.9 | 23.1 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Ballwin?
4 census tracts lie mostly in Ballwin, and 8 more reach into it (2020 census blocks). Their median household incomes run from $113,125 (Tract 2178.02) to $127,179 (Tract 2179.44).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 2178.07St. Louis County | 6,313 | $125,958 |
| Tract 2179.23St. Louis County | 6,510 | $121,699 |
| Tract 2179.44St. Louis County | 5,901 | $127,179 |
| Tract 2178.02St. Louis County | 6,636 | $113,125 |
| Tract 2178.52St. Louis County | 6,554 | $176,315 |
| Tract 2178.06St. Louis County | 5,888 | $117,699 |
| Tract 2179.31St. Louis County | 6,696 | $118,487 |
| Tract 2179.43St. Louis County | 3,422 | $110,714 |
| Tract 2179.32St. Louis County | 4,835 | $123,988 |
| Tract 2177.02St. Louis County | 7,788 | $158,162 |
| Tract 2216.26St. Louis County | 6,127 | $183,355 |
| Tract 2179.21St. Louis County | 4,919 | $171,987 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Ballwin) · Census block assignment files
How does Ballwin compare with other places in Missouri?
By the Census Bureau's July 2025 estimates, Ballwin is the 1,332nd-most populous of the 19,476 U.S. incorporated places that have one and the 21st-most populous of 936 in Missouri.
Ballwin ranks 23rd of 416 places in Missouri with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 21st | 936 |
| Growth 2020-2025 (PEP) | 336th | 394 |
| Residents per square mile | 39th | 420 |
| Median household income | 23rd | 416 |
| Per capita income | 30th | 420 |
| Median home value | 30th | 416 |
| Median gross rent | 30th | 398 |
| Poverty rate | 352nd | 373 |
| Bachelor's degree or higher | 19th | 404 |
| Median age | 88th | 420 |
| Owner-occupied share | 49th | 418 |
| Work from home | 35th | 270 |
| Travel time to work | 133rd | 420 |
Ballwin's figures with every place in Missouri (CSV)
Every place in Missouri, sortable · Compare Ballwin with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Ballwin?
11 of the 57 figures for Ballwin on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Ballwin are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Ballwin.