Augusta, Missouri Demographics & Population 2026
During the 2020–2024 ACS period, Augusta, Missouri had a total population of 285, the 650th largest town in Missouri, with a median household income of $103,750, which is 47% higher than the state average. The poverty rate is 2.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 47% above the state average — one of the wealthiest communities in Missouri.
- An exceptionally low poverty rate of 2.1% — among the lowest in Missouri.
- Near full employment with an unemployment rate of just 1.4%.
Augusta Quick Facts
How Augusta Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 274 | 285 | +4.0% |
| Median household income | $100,250 | $103,750 | +3.5% |
| Median home value | $340,600 | $362,500 | +6.4% |
How Augusta Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 40 | National average: 61
Education
Educational Attainment (Adults 25+)
Augusta Rankings in Missouri
Explore Missouri Rankings
Other Cities in St. Charles County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| O'Fallon | 93,801 | $110,443 | 5.4% | $326,200 |
| St. Charles | 71,508 | $85,937 | 7.3% | $298,700 |
| St. Peters | 59,092 | $91,637 | 5.7% | $269,900 |
| Wentzville | 47,061 | $112,394 | 5.4% | $331,300 |
| Lake St. Louis | 18,066 | $125,693 | 4.3% | $405,900 |
| Dardenne Prairie | 13,503 | $152,500 | 1.3% | $432,000 |
| Cottleville | 5,937 | $131,310 | 2.0% | $435,400 |
| Weldon Spring | 5,310 | $158,548 | 0.7% | $544,300 |
| St. Paul | 3,456 | $159,022 | 0.5% | $443,600 |
| Foristell | 1,096 | $116,581 | 1.7% | $431,700 |
Cities Similar to Augusta
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Macks Creek | 290 | N/A | $275,000 | 8.5% | 25.9% |
| Fillmore | 299 | N/A | $83,100 | 3.7% | 5.3% |
| Ozora | 299 | N/A | $188,500 | 31.8% | 49.5% |
| Houston Lake | 271 | $106,875 | $244,000 | 23.6% | 7.0% |
| Mayview | 301 | $116,250 | $113,000 | 5.2% | 10.6% |
A note before these figures: with a population of 285, Augusta's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Augusta is a small community located in Missouri, within St. Charles County. The total population is 285. It ranks as the 650th most populous out of 1,062 Census-designated places in Missouri.
Age Demographics
The median age in Augusta is 51.8 years. This is 33% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Augusta is $103,750. This is 47% higher than the state median of $70,702. It is also 29% higher than the national median of $80,734. The poverty rate stands at 2.1%. This is 83% lower than the state poverty rate of 12.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 1.4%. This is 66% lower than the state rate of 4.0%. The median home value is $362,500. Housing costs are 57% higher than the state median of $230,300. The home-value-to-income ratio is 3.5x. 95.4% of occupied housing units are owner-occupied. This homeownership rate is 40% higher than the state average of 68.1%.
Race & Ethnicity
Augusta has a predominantly White (non-Hispanic) population, comprising 97.5% of all residents. Hispanic or Latino residents account for 0.4%. The Hispanic or Latino population (0.4%) is well below the state average of 5.2%.
Education
35.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 10% higher than the state rate of 32.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.6%.
Data Sources & Methodology
All demographic data for Augusta, Missouri is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Missouri state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,062 Census-designated places in Missouri. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Augusta, Missouri?
Augusta, Missouri has a population of 285 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Augusta, MO?
The median household income in Augusta is $103,750, which is 29% higher than the national median of $80,734.
What is the poverty rate in Augusta, MO?
The poverty rate in Augusta is 2.1%. This means approximately 6 residents live below the federal poverty line.
What is the racial makeup of Augusta, Missouri?
Augusta's population is 97.5% White, 0.0% Black, 0.4% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Augusta, MO?
The median home value in Augusta is $362,500. The home-value-to-income ratio is 3.5x.
How educated is Augusta, Missouri?
35.8% of adults (25+) in Augusta hold a bachelor's degree or higher, and 13.1% hold a graduate or professional degree.