City · Missouri
Cottleville, Missouri
Cottleville, city, in St. Charles County, Missouri. Cottleville had 6,717 residents on July 1, 2025 by the Census Bureau's estimate, up 19.6% since 2020; the 2020 Census counted 5,611 and the ACS 2020-2024 5-year estimates put it at 5,937 (±26). GEOID 2916678.
Residents, July 2025 estimate
6,717
Census Bureau estimate (no margin published)
2020 Census count: 5,611 · ACS 2020-2024: 5,937 ±26
Median household income
$131,310
±$28,368 (90% margin)
Missouri: $70,702
Median home value
$435,400
±$37,965 (90% margin)
Missouri: $230,300
Median gross rent
$1,624
±$224 (90% margin)
Missouri: $1,033
Where is Cottleville and what county is it in?
Cottleville is a city in St. Charles County, Missouri. It covers 4.7 square miles of land, 1,184 residents per square mile in 2020.
Cottleville 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 Cottleville, and is it growing?
The Census Bureau estimates that 6,717 people lived in Cottleville on July 1, 2025, up 19.6% since 2020, faster than Missouri (+1.9%). The 2020 Census counted 5,611 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 5,937 (±26).
| Measure | Cottleville | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 5,937 ±26 | 414,535 | +737 |
| Households | 2,206 ±185 | 161,311 | +316 |
| Average household size | 2.69 ±0.22 | 2.53 | no clear change |
| Housing units | 2,275 ±197 | 167,163 | no clear change |
Cottleville's population since 2000
From 1,928 in 2000 to 6,717 in 2025: up 248.4%. The 2000, 2010 and 2020 figures are census counts, each for Cottleville 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 Cottleville?
The median resident of Cottleville is 41.1 years old; 22.0% are under 18 and 15.2% are 65 or older. The largest group is non-Hispanic white residents at 80.6%, then non-Hispanic Black residents at 7.1%.
| Measure | Cottleville | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 41.1 ±4.0 | 39.8 | no clear change |
| Under 18 years | 22.0% ±4.5 pts | 22.5% | – |
| 65 years and over | 15.2% ±4.8 pts | 17.0% | – |
| Male | 47.9% ±3.8 pts | 49.5% | – |
| Hispanic or Latino (any race) | 3.5% ±3.2 pts | 4.2% | – |
| White alone, not Hispanic | 80.6% ±6.6 pts | 83.0% | −10.2 pts |
| Black or African American alone, not Hispanic | 7.1% ±6.2 pts | 5.0% | – |
| Asian alone, not Hispanic | 1.3% ±1.5 pts | 3.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.6 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 6.3% ±4.0 pts | 4.3% | – |
| Some other race alone, not Hispanic | 1.2% ±1.8 pts | 0.4% | – |
| Born outside the United States | 6.2% ±5.6 pts | 4.5% | – |
| Speak a language other than English at home (age 5+) | 2.5% ±2.0 pts | 5.8% | – |
| Civilian veterans (age 18+) | 3.7% ±3.0 pts | 6.6% | – |
| With a disability | 7.2% ±2.6 pts | 11.7% | – |
| No health insurance coverage | 1.8% ±2.2 pts | 4.2% | – |
| High school graduate or higher (age 25+) | 98.2% ±1.7 pts | 95.7% | – |
| Bachelor's degree or higher (age 25+) | 53.3% ±8.5 pts | 42.7% | no clear change |
| Graduate or professional degree (age 25+) | 25.1% ±6.9 pts | 15.8% | – |
| Lived in the same house a year earlier | 88.4% ±5.4 pts | 89.6% | – |
| Moved from another state in the past year | 0.8% ±0.9 pts | 1.9% | – |
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 Cottleville earn?
Half of Cottleville's 2,206 households earn less than $131,310 a year (±$28,368), against $104,692 in St. Charles County and $70,702 in Missouri. In 2015-2019 it was $132,959 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Cottleville | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $131,310 ±$28,368 | $104,692 | no clear change |
| Mean household income | $175,123 ±$19,038 | $129,305 | – |
| Per capita income | $67,203 ±$8,649 | $51,051 | no clear change |
| People below the poverty line | 2.0% ±1.5 pts | 5.2% | – |
| Children under 18 below the poverty line | 0.0% ±2.8 pts | 5.7% | – |
| Households receiving SNAP | 0.2% ±0.3 pts | 3.6% | – |
| Households with a computer | 98.5% ±2.5 pts | 97.4% | – |
| Households with a broadband subscription | 98.1% ±2.8 pts | 95.1% | – |
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 Cottleville?
Owners occupy 80.6% of Cottleville's occupied homes and renters 19.4%. The median owner-occupied home is valued at $435,400 by its owner (±$37,965). The median renter pays $1,624 a month including utilities.
| Measure | Cottleville | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $435,400 ±$37,965 | $320,800 | +$56,346 |
| Median gross rent | $1,624 ±$224 | $1,370 | no clear change |
| Renters paying 35% or more of income on rent | 25.4% ±16.8 pts | 34.5% | – |
| Median monthly owner costs, with a mortgage | $2,035 ±$246 | $1,866 | – |
| Owner-occupied homes | 80.6% ±7.0 pts | 80.5% | no clear change |
| Renter-occupied homes | 19.4% ±7.0 pts | 19.5% | – |
| Housing units | 2,275 ±197 | 167,163 | no clear change |
| Homeowner vacancy rate | 0.0% ±1.9 pts | 0.3% | – |
| Rental vacancy rate | 12.1% ±18.0 pts | 6.2% | – |
| Single-family detached homes | 72.0% ±5.9 pts | 74.7% | – |
| Mobile homes | 0.0% ±1.5 pts | 2.5% | – |
| Built 2020 or later | 8.7% ±3.9 pts | 3.3% | – |
| Built 2010 to 2019 | 51.5% ±7.8 pts | 14.4% | – |
| Built 1939 or earlier | 1.4% ±1.9 pts | 2.2% | – |
| Households with no vehicle | 5.8% ±4.1 pts | 3.8% | – |
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 Cottleville building?
Builders took permits for 77 new housing units in Cottleville in 2025 (77 in single-family houses), 11.5 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 Cottleville work and get to work?
76.2% of Cottleville's workers drive alone and 13.7% work from home. The average trip to work takes 22.5 minutes.
| Measure | Cottleville | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 77.7% ±3.8 pts | 69.4% | – |
| Unemployment rate | 2.3% ±2.5 pts | 2.9% | – |
| Drove alone to work | 76.2% ±6.1 pts | 73.8% | – |
| Carpooled | 4.4% ±2.8 pts | 5.9% | – |
| Public transportation | 0.0% ±1.0 pts | 0.1% | – |
| Walked | 1.1% ±1.3 pts | 0.8% | – |
| Worked from home | 13.7% ±4.6 pts | 18.0% | +5.6 pts |
| Mean travel time to work | 22.5 min ±1.8 | 24.5 min | −4.7 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
What census tracts are in Cottleville?
No census tract lies mostly in Cottleville; 6 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 3113.22St. Charles County | 6,089 | $107,641 |
| Tract 3111.24St. Charles County | 7,248 | $128,542 |
| Tract 3111.14St. Charles County | 5,566 | $112,259 |
| Tract 3117.40St. Charles County | 2,196 | $154,313 |
| Tract 3113.12St. Charles County | 7,935 | $101,967 |
| Tract 3117.39St. Charles County | 4,486 | $139,487 |
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 Cottleville) · Census block assignment files
How does Cottleville compare with other places in Missouri?
By the Census Bureau's July 2025 estimates, Cottleville is the 4,163rd-most populous of the 19,476 U.S. incorporated places that have one and the 109th-most populous of 936 in Missouri.
Cottleville ranks 20th 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 | 109th | 936 |
| Growth 2020-2025 (PEP) | 14th | 394 |
| Residents per square mile | 164th | 420 |
| Median household income | 20th | 416 |
| Per capita income | 22nd | 420 |
| Median home value | 23rd | 416 |
| Median gross rent | 13th | 398 |
| Bachelor's degree or higher | 35th | 404 |
| Median age | 128th | 420 |
| Owner-occupied share | 73rd | 418 |
| Work from home | 99th | 270 |
| Travel time to work | 210th | 420 |
Cottleville's figures with every place in Missouri (CSV)
Every place in Missouri, sortable · Compare Cottleville 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 Cottleville?
23 of the 57 figures for Cottleville 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 Cottleville 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 Cottleville.