All Countries
St. Mary, MO
Full City Profile · Missouri
2.8
/5.0
C+
Fair
255
Population
425/sq mi density
$57,500
Median Income
$23,554 per capita
$97,500
Home Value
$221,600 Zillow
$783
Median Rent
32.0% income on rent
56°F
Avg Temperature
260 sunny days/yr
311
Violent Crime/100K
1,794 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$57,500 median income, 3.3% unemployment
A+
Affordability
5.0 / 5.0
$97,500 home value, $783/mo rent
F
Safety
1.0 / 5.0
311 violent crimes/100K
D
Education
1.8 / 5.0
10.6% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-13%
354 → 308
over 10 years
Annual Pop. Growth
-1.38%
Compound annual growth rate
Median Income Change
+50.8%
$38,125 → $57,500
nominal, not inflation-adjusted
Annual Income Growth
+4.19%
Compound annual growth rate
Population Over Time
Total population for St. Mary across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
279
-29 from 2023 (308)
Projected Median Income 2030
$76,639
+$19,139 from 2023 ($57,500)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 354 | — | $38,125 | — |
| 2015 | 350 | -1.1% | $33,214 | -12.9% |
| 2017 | 348 | -0.6% | $37,969 | +14.3% |
| 2019 | 349 | +0.3% | $43,750 | +15.2% |
| 2021 | 318 | -8.9% | $58,750 | +34.3% |
| 2023 | 308 | -3.1% | $57,500 | -2.1% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.