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Thornton, IA
Full City Profile · Iowa · Franklin County County
3.2
/5.0
B
Good
534
Population
431/sq mi density
$66,979
Median Income
$33,158 per capita
$99,000
Home Value
$153,096 Zillow
$775
Median Rent
21.9% income on rent
47°F
Avg Temperature
260 sunny days/yr
209
Violent Crime/100K
3,323 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.3 / 5.0
$66,979 median income, 1.7% unemployment
A+
Affordability
5.0 / 5.0
$99,000 home value, $775/mo rent
F
Safety
1.0 / 5.0
209 violent crimes/100K
C+
Education
2.6 / 5.0
19.9% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-5.5%
417 → 394
over 10 years
Annual Pop. Growth
-0.57%
Compound annual growth rate
Median Income Change
+63.4%
$41,000 → $66,979
nominal, not inflation-adjusted
Annual Income Growth
+5.03%
Compound annual growth rate
Population Over Time
Total population for Thornton 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
379
-15 from 2023 (394)
Projected Median Income 2030
$94,435
+$27,456 from 2023 ($66,979)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 417 | — | $41,000 | — |
| 2015 | 408 | -2.2% | $39,423 | -3.8% |
| 2017 | 407 | -0.2% | $44,500 | +12.9% |
| 2019 | 402 | -1.2% | $48,542 | +9.1% |
| 2021 | 398 | -1% | $53,667 | +10.6% |
| 2023 | 394 | -1% | $66,979 | +24.8% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.