Town · Missouri
Augusta, Missouri
Augusta, town, in St. Charles County, Missouri. Augusta had 265 residents on July 1, 2025 by the Census Bureau's estimate, down 1.5% since 2020; the 2020 Census counted 270 and the ACS 2020-2024 5-year estimates put it at 285 (±76). GEOID 2902512.
Residents, July 2025 estimate
265
Census Bureau estimate (no margin published)
2020 Census count: 270 · ACS 2020-2024: 285 ±76
Median household income
$103,750
±$30,327 (90% margin)
Missouri: $70,702
Median home value
$362,500
±$81,381 (90% margin)
Missouri: $230,300
Median gross rent
$1,375
±$791 (90% margin)
Missouri: $1,033
Where is Augusta and what county is it in?
Augusta is a town in St. Charles County, Missouri. It covers 0.9 square miles of land, 304 residents per square mile in 2020.
Augusta 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 Augusta, and is it growing?
The Census Bureau estimates that 265 people lived in Augusta on July 1, 2025, down 1.5% since 2020, while Missouri grew 1.9%. The 2020 Census counted 270 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 285 (±76).
| Measure | Augusta | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 285 ±76 | 414,535 | no clear change |
| Households | 131 ±35 | 161,311 | no clear change |
| Average household size | 2.18 ±0.48 | 2.53 | no clear change |
| Housing units | 166 ±43 | 167,163 | no clear change |
Augusta's population since 2000
From 218 in 2000 to 265 in 2025: up 21.6%. The 2000, 2010 and 2020 figures are census counts, each for Augusta 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 Augusta?
The median resident of Augusta is 51.8 years old; 20.4% are under 18 and 27.4% are 65 or older. The largest group is non-Hispanic white residents at 97.5%, then non-Hispanic residents of two or more races at 2.1%.
| Measure | Augusta | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 51.8 ±10.1 | 39.8 | no clear change |
| Under 18 years | 20.4% ±9.6 pts | 22.5% | – |
| 65 years and over | 27.4% ±14.9 pts | 17.0% | – |
| Male | 47.4% ±6.5 pts | 49.5% | – |
| Hispanic or Latino (any race) | 0.4% ±1.2 pts | 4.2% | – |
| White alone, not Hispanic | 97.5% ±3.4 pts | 83.0% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±11.5 pts | 5.0% | – |
| Asian alone, not Hispanic | 0.0% ±11.5 pts | 3.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±11.5 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±11.5 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.1% ±3.8 pts | 4.3% | – |
| Some other race alone, not Hispanic | 0.0% ±11.5 pts | 0.4% | – |
| Born outside the United States | 0.7% ±1.2 pts | 4.5% | – |
| Speak a language other than English at home (age 5+) | 0.7% ±1.1 pts | 5.8% | – |
| Civilian veterans (age 18+) | 6.2% ±5.0 pts | 6.6% | – |
| With a disability | 8.1% ±4.1 pts | 11.7% | – |
| No health insurance coverage | 2.5% ±3.3 pts | 4.2% | – |
| High school graduate or higher (age 25+) | 98.6% ±2.0 pts | 95.7% | – |
| Bachelor's degree or higher (age 25+) | 35.7% ±12.0 pts | 42.7% | no clear change |
| Graduate or professional degree (age 25+) | 13.1% ±8.3 pts | 15.8% | – |
| Lived in the same house a year earlier | 91.8% ±6.4 pts | 89.6% | – |
| Moved from another state in the past year | 0.0% ±11.7 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 Augusta earn?
Half of Augusta's 131 households earn less than $103,750 a year (±$30,327), against $104,692 in St. Charles County and $70,702 in Missouri. In 2015-2019 it was $81,313 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Augusta | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $103,750 ±$30,327 | $104,692 | no clear change |
| Mean household income | $107,142 ±$14,363 | $129,305 | – |
| Per capita income | $48,895 ±$6,874 | $51,051 | no clear change |
| People below the poverty line | 2.1% ±2.3 pts | 5.2% | – |
| Children under 18 below the poverty line | 0.0% ±40.4 pts | 5.7% | – |
| Households receiving SNAP | 1.5% ±2.6 pts | 3.6% | – |
| Households with a computer | 92.4% ±6.9 pts | 97.4% | – |
| Households with a broadband subscription | 84.0% ±15.0 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 Augusta?
Owners occupy 95.4% of Augusta's occupied homes and renters 4.6%. The median owner-occupied home is valued at $362,500 by its owner (±$81,381). The median renter pays $1,375 a month including utilities.
| Measure | Augusta | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $362,500 ±$81,381 | $320,800 | +$110,454 |
| Median gross rent | $1,375 ±$791 | $1,370 | no clear change |
| Renters paying 35% or more of income on rent | 16.7% ±50.2 pts | 34.5% | – |
| Median monthly owner costs, with a mortgage | $1,884 ±$316 | $1,866 | – |
| Owner-occupied homes | 95.4% ±6.6 pts | 80.5% | +12.3 pts |
| Renter-occupied homes | 4.6% ±6.6 pts | 19.5% | – |
| Housing units | 166 ±43 | 167,163 | no clear change |
| Homeowner vacancy rate | 1.6% ±2.6 pts | 0.3% | – |
| Rental vacancy rate | 0.0% ±85.4 pts | 6.2% | – |
| Single-family detached homes | 93.4% ±8.3 pts | 74.7% | – |
| Mobile homes | 4.2% ±7.1 pts | 2.5% | – |
| Built 2020 or later | 1.2% ±1.8 pts | 3.3% | – |
| Built 2010 to 2019 | 4.8% ±4.1 pts | 14.4% | – |
| Built 1939 or earlier | 53.6% ±13.4 pts | 2.2% | – |
| Households with no vehicle | 1.5% ±2.5 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 do people in Augusta work and get to work?
74.6% of Augusta's workers drive alone and 17.4% work from home. The average trip to work takes 42.7 minutes.
| Measure | Augusta | St. Charles County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.2% ±13.8 pts | 69.4% | – |
| Unemployment rate | 1.4% ±2.4 pts | 2.9% | – |
| Drove alone to work | 74.6% ±9.4 pts | 73.8% | – |
| Carpooled | 5.1% ±6.0 pts | 5.9% | – |
| Public transportation | 0.0% ±22.2 pts | 0.1% | – |
| Walked | 2.9% ±4.1 pts | 0.8% | – |
| Worked from home | 17.4% ±9.0 pts | 18.0% | – |
| Mean travel time to work | 42.7 min ±10.4 | 24.5 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 Augusta?
No census tract lies mostly in Augusta; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 3122.04St. Charles County | 5,183 | $149,841 |
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 Augusta) · Census block assignment files
How does Augusta compare with other places in Missouri?
By the Census Bureau's July 2025 estimates, Augusta is the 15,577th-most populous of the 19,476 U.S. incorporated places that have one and the 598th-most populous of 936 in Missouri.
Augusta is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 598th | 936 |
Augusta's figures with every place in Missouri (CSV)
Every place in Missouri, sortable · Compare Augusta 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 Augusta?
27 of the 57 figures for Augusta 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 Augusta 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 Augusta.