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St. Joseph, IA
Full City Profile · Iowa · Humboldt County County
2.9
/5.0
C+
Fair
78
Population
91/sq mi density
$45,347
Median Income
$25,587 per capita
47°F
Avg Temperature
260 sunny days/yr
254
Violent Crime/100K
636 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Economy
2.7 / 5.0
$45,347 median income, 0.0% unemployment
F
Safety
1.0 / 5.0
254 violent crimes/100K
A+
Education
5.0 / 5.0
68.1% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+212%
25 → 78
over 10 years
Annual Pop. Growth
+12.05%
Compound annual growth rate
Population Over Time
Total population for St. Joseph 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
173
+95 from 2023 (78)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 25 | — | — | — |
| 2015 | 78 | +212% | $45,625 | — |
| 2017 | 154 | +97.4% | $48,333 | +5.9% |
| 2019 | 104 | -32.5% | $59,375 | +22.8% |
| 2021 | 70 | -32.7% | $53,500 | -9.9% |
| 2023 | 78 | +11.4% | $45,347 | -15.2% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.