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Alton, IA
Full City Profile · Iowa · Plymouth County County
3.4
/5.0
B
Good
1,350
Population
707/sq mi density
$86,136
Median Income
$46,986 per capita
$204,600
Home Value
$293,821 Zillow
$750
Median Rent
18.8% income on rent
47°F
Avg Temperature
291 sunny days/yr
16
Violent Crime/100K
612 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$86,136 median income, 1.8% unemployment
A+
Affordability
5.0 / 5.0
$204,600 home value, $750/mo rent
F
Safety
1.0 / 5.0
16 violent crimes/100K
C+
Education
2.8 / 5.0
21.9% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-1.3%
1,253 → 1,237
over 10 years
Annual Pop. Growth
-0.13%
Compound annual growth rate
Median Income Change
+50.1%
$57,396 → $86,136
nominal, not inflation-adjusted
Annual Income Growth
+4.14%
Compound annual growth rate
Population Over Time
Total population for Alton 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
1,226
-11 from 2023 (1,237)
Projected Median Income 2030
$114,422
+$28,286 from 2023 ($86,136)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 1,253 | — | $57,396 | — |
| 2015 | 1,270 | +1.4% | $62,232 | +8.4% |
| 2017 | 1,260 | -0.8% | $63,846 | +2.6% |
| 2019 | 1,251 | -0.7% | $70,882 | +11% |
| 2021 | 1,242 | -0.7% | $87,500 | +23.4% |
| 2023 | 1,237 | -0.4% | $86,136 | -1.6% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.