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Duncombe, IA
Full City Profile · Iowa · Hamilton County County
2.9
/5.0
C+
Fair
382
Population
195/sq mi density
$63,125
Median Income
$32,555 per capita
$108,200
Home Value
$174,984 Zillow
$542
Median Rent
13.5% income on rent
46°F
Avg Temperature
260 sunny days/yr
319
Violent Crime/100K
1,838 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$63,125 median income, 4.8% unemployment
A+
Affordability
5.0 / 5.0
$108,200 home value, $542/mo rent
F
Safety
1.0 / 5.0
319 violent crimes/100K
D
Education
1.7 / 5.0
9.0% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-7.7%
403 → 372
over 10 years
Annual Pop. Growth
-0.8%
Compound annual growth rate
Median Income Change
+42.4%
$44,338 → $63,125
nominal, not inflation-adjusted
Annual Income Growth
+3.6%
Compound annual growth rate
Population Over Time
Total population for Duncombe 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
352
-20 from 2023 (372)
Projected Median Income 2030
$80,857
+$17,732 from 2023 ($63,125)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 403 | — | $44,338 | — |
| 2015 | 402 | -0.2% | $37,188 | -16.1% |
| 2017 | 395 | -1.7% | $35,536 | -4.4% |
| 2019 | 386 | -2.3% | $47,083 | +32.5% |
| 2021 | 380 | -1.6% | $56,250 | +19.5% |
| 2023 | 372 | -2.1% | $63,125 | +12.2% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.