Census tract · St. Louis County
Census Tract 2179.21, St. Louis County, Missouri
Census Tract 2179.21, GEOID 29189217921, in St. Louis County, Missouri, partly within Ellisville, Wildwood and Ballwin. 4,919 residents in the ACS 2020-2024 5-year estimates (±438); the 2020 Census counted 4,833.
Residents, 2020-2024
4,919
±438 (90% margin)
2020 Census count: 4,833
Median household income
$171,987
±$22,227 (90% margin)
St. Louis County: $82,936
Median home value
$558,900
±$21,716 (90% margin)
St. Louis County: $276,800
Median gross rent
$1,090
±$100 (90% margin)
St. Louis County: $1,209
Where is Census Tract 2179.21?
Census Tract 2179.21 is one of 236 census tracts in St. Louis County, Missouri. It covers 7.49 square miles of land, 645 residents per square mile in 2020. Its GEOID, 29189217921, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Ellisville | 23% |
| Wildwood | 18% |
| Ballwin | 1% |
8 census tracts border Census Tract 2179.21: Tract 2178.06 ($117,699), Tract 2179.23 ($121,699), Tract 2179.32 ($123,988), Tract 2179.43 ($110,714), Tract 2179.44 ($127,179), Tract 2214.21 ($140,956), Tract 2215.06 ($150,938) and Tract 2221 ($148,056). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 2179.21?
The 2020-2024 American Community Survey puts Census Tract 2179.21's population at 4,919 (±438) in 1,786 households; the 2020 Census counted 4,833 residents and 1,787 housing units.
| Measure | Tract 2179.21 | St. Louis County |
|---|---|---|
| Total population | 4,919 ±438 | 995,569 |
| Households | 1,786 ±123 | 413,849 |
| Average household size | 2.66 ±0.21 | 2.36 |
| Housing units | 1,786 ±123 | 446,192 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 2179.21?
The median resident of Census Tract 2179.21 is 46.9 years old; 19.6% are under 18 and 22.3% are 65 or older. The largest group is non-Hispanic white residents at 76.7%, then non-Hispanic Asian residents at 13.8%. 10.3% of residents were born outside the United States.
| Measure | Tract 2179.21 | St. Louis County |
|---|---|---|
| Median age | 46.9 ±3.0 | 40.3 |
| Under 18 years | 19.6% ±3.6 pts | 22.0% |
| 65 years and over | 22.3% ±4.4 pts | 19.1% |
| Hispanic or Latino (any race) | 1.6% ±1.3 pts | 3.9% |
| White alone, not Hispanic | 76.7% ±6.2 pts | 61.4% |
| Black or African American alone, not Hispanic | 1.1% ±1.1 pts | 24.0% |
| Asian alone, not Hispanic | 13.8% ±3.0 pts | 4.9% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 6.7% ±5.7 pts | 5.3% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.5% |
| Born outside the United States | 10.3% ±2.7 pts | 8.4% |
| Speak a language other than English at home (age 5+) | 10.8% ±2.7 pts | 10.5% |
| Civilian veterans (age 18+) | 4.4% ±1.9 pts | 6.0% |
| With a disability | 7.8% ±2.6 pts | 12.1% |
| No health insurance coverage | 3.6% ±2.2 pts | 5.7% |
| High school graduate or higher (age 25+) | 98.2% ±1.4 pts | 94.5% |
| Bachelor's degree or higher (age 25+) | 72.4% ±6.0 pts | 47.4% |
| Graduate or professional degree (age 25+) | 25.9% ±4.7 pts | 20.4% |
| Lived in the same house a year earlier | 93.4% ±3.1 pts | 88.2% |
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 Census Tract 2179.21 earn?
Half of the 1,786 households in Census Tract 2179.21 earn less than $171,987 a year (±$22,227), against $82,936 across St. Louis County: 15th highest of the county's 234 tracts with a reliable estimate. 5.1% of residents live below the poverty line.
| Measure | Tract 2179.21 | St. Louis County |
|---|---|---|
| Median household income | $171,987 ±$22,227 | $82,936 |
| Mean household income | $192,143 ±$15,842 | $123,036 |
| Per capita income | $71,168 ±$7,513 | $51,977 |
| People below the poverty line | 5.1% ±3.1 pts | 9.8% |
| Children under 18 below the poverty line | 7.1% ±6.9 pts | 13.5% |
| Households receiving SNAP | 3.8% ±3.1 pts | 8.0% |
| Households with a computer | 100.0% ±1.9 pts | 96.3% |
| Households with a broadband subscription | 96.7% ±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 Census Tract 2179.21?
Owners occupy 87.7% of Census Tract 2179.21's occupied homes and renters 12.3%. The median owner-occupied home is valued at $558,900 by its owner (±$21,716). The median renter pays $1,090 a month including utilities.
| Measure | Tract 2179.21 | St. Louis County |
|---|---|---|
| Median home value (owner-occupied) | $558,900 ±$21,716 | $276,800 |
| Median gross rent | $1,090 ±$100 | $1,209 |
| Renters paying 35% or more of income on rent | 10.0% ±13.7 pts | 39.5% |
| Median monthly owner costs, with a mortgage | $2,945 ±$179 | $1,753 |
| Owner-occupied homes | 87.7% ±4.5 pts | 69.2% |
| Renter-occupied homes | 12.3% ±4.5 pts | 30.8% |
| Housing units | 1,786 ±123 | 446,192 |
| Single-family detached homes | 84.4% ±4.4 pts | 72.0% |
| Mobile homes | 0.0% ±1.9 pts | 0.3% |
| Built 2020 or later | 0.8% ±1.2 pts | 0.7% |
| Built 2010 to 2019 | 4.1% ±1.9 pts | 3.5% |
| Built 1939 or earlier | 4.9% ±3.2 pts | 9.7% |
| Households with no vehicle | 4.7% ±3.0 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 do people in Census Tract 2179.21 get to work?
68.3% of Census Tract 2179.21's workers drive alone and 25.6% work from home. The average trip to work takes 26.3 minutes.
| Measure | Tract 2179.21 | St. Louis County |
|---|---|---|
| In the labor force (age 16+) | 60.8% ±4.8 pts | 65.0% |
| Unemployment rate | 5.6% ±5.0 pts | 4.3% |
| Drove alone to work | 68.3% ±6.4 pts | 71.3% |
| Carpooled | 4.8% ±3.3 pts | 6.4% |
| Public transportation | 0.0% ±1.5 pts | 1.4% |
| Walked | 1.1% ±1.3 pts | 1.4% |
| Worked from home | 25.6% ±6.2 pts | 18.3% |
| Mean travel time to work | 26.3 min ±1.8 | 23.1 min |
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
How does Census Tract 2179.21 compare with the other tracts in St. Louis County?
Among St. Louis County's tracts with a reliable estimate, Census Tract 2179.21 ranks as shown below (1 = highest).
| Measure | In St. Louis County |
|---|---|
| Population | 77th of 236 |
| Residents per square mile | 220th of 236 |
| Median household income | 15th of 234 |
| Per capita income | 39th of 236 |
| Median home value | 24th of 233 |
| Median gross rent | 150th of 210 |
| Poverty rate | 118th of 146 |
| Bachelor's degree or higher | 37th of 227 |
| Median age | 37th of 234 |
| Owner-occupied share | 52nd of 236 |
The tracts next to it on St. Louis County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 2216.21 | 12th | $180,417±$45,998 · within the margin of this tract |
| Tract 2178.52 | 13th | $176,315±$25,298 · within the margin of this tract |
| Tract 2184.01 | 14th | $172,604±$35,462 · within the margin of this tract |
| Tract 2179.21 | 15th | $171,987±$22,227 |
| Tract 2188 | 16th | $170,700±$29,281 · within the margin of this tract |
| Tract 2178.51 | 17th | $170,417±$33,256 · within the margin of this tract |
| Tract 2194 | 18th | $168,929±$52,971 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 2179.21?
2 of the 18 figures for Census Tract 2179.21 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.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections