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Augusta, MO
Town in St. Charles County, Missouri.
Population
285
Land area
0.9sq mi
People per sq mi
321
ZIP codes
0
Augusta and its ZIP codes
Augusta at a glance
- Augusta is about 3.6 times as dense as Missouri as a whole.
Local data for Augusta, MO
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for St. Charles County. PPP loans are for Augusta.
Unemployment rate
3.3%
Aug 2026, -0.3 pts in a year
Average annual pay
$62,680
162,655 jobs, 2025
Income per person
$71,954
BEA, 2024
Federal spending
$2.5B
FY 2026, $6,244 per person
Environment and hazard risk
Augusta, MO, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: strong wind
Storm events since 1996
865
Countywide, mostly thunderstorm wind
Flood insurance policies
1,076
0.8% of homes, county
July high / Jan low
88° / 20°F
44.1 inches of rain a year
Hazards, floods and storm historyCheck a flood zone10 historic places
Health statistics
Share of adults in Augusta, MO, CDC PLACES estimates
Obesity
35.6%
U.S. 33.3% +2.3 pts
Diabetes
11.3%
U.S. 12.1% -0.8 pts
Smoking
11.9%
U.S. 12.8% -0.9 pts
Uninsured (18-64)
5.1%
U.S. 11.1% -6.0 pts
Cities near Augusta
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Gray SummitCensus-designated place | 5.1 mi | 7.7 |
| Villa RidgeCensus-designated place | 6.8 mi | 4.9 |
| DefianceCensus-designated place | 7.2 mi | 1 |
| Three CreeksVillage | 7.3 mi | 4.8 |
| WashingtonCity | 7.5 mi | 10 |
| PacificCity | 8.5 mi | 6.9 |
| MarthasvilleCity | 10 mi | 0.9 |
| UnionCity | 11 mi | 9.1 |
| New MelleCity | 11 mi | 1.7 |
| WildwoodCity | 12 mi | 66.7 |
| Lake TekakwithaVillage | 12 mi | 0.2 |
| EurekaCity | 13 mi | 11.2 |
| Weldon Spring HeightsTown | 15 mi | 0.1 |
| LaBarque CreekCensus-designated place | 15 mi | 17.6 |
| Lake St. LouisCity | 16 mi | 8.5 |
| St. ClairCity | 16 mi | 4.8 |
Frequently asked questions
- What county is Augusta, MO in?
- Augusta is in St. Charles County, Missouri.
- What is the population of Augusta, MO?
- About 285 people live in Augusta, based on American Community Survey 5-year estimates.
- What cities are near Augusta?
- Nearby places include Gray Summit (5.1 mi), Villa Ridge (6.8 mi), Defiance (7.2 mi), Three Creeks (7.3 mi), Washington (7.5 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023