All Countries
Spencer, IA
Full City Profile · Iowa · Clay County County
3.2
/5.0
B
Good
11,393
Population
1,040/sq mi density
$57,068
Median Income
$36,456 per capita
$178,300
Home Value
$191,239 Zillow
$795
Median Rent
26.5% income on rent
46°F
Avg Temperature
260 sunny days/yr
64
Violent Crime/100K
1,662 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$57,068 median income, 3.3% unemployment
A+
Affordability
4.9 / 5.0
$178,300 home value, $795/mo rent
F
Safety
1.0 / 5.0
64 violent crimes/100K
B
Education
3.3 / 5.0
28.2% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
+3%
11,131 → 11,464
over 10 years
Annual Pop. Growth
+0.3%
Compound annual growth rate
Median Income Change
+27.3%
$44,815 → $57,068
nominal, not inflation-adjusted
Annual Income Growth
+2.45%
Compound annual growth rate
Population Over Time
Total population for Spencer 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
11,707
+243 from 2023 (11,464)
Projected Median Income 2030
$67,605
+$10,537 from 2023 ($57,068)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 11,131 | — | $44,815 | — |
| 2015 | 11,197 | +0.6% | $45,688 | +1.9% |
| 2017 | 11,041 | -1.4% | $45,719 | +0.1% |
| 2019 | 11,016 | -0.2% | $46,545 | +1.8% |
| 2021 | 11,356 | +3.1% | $45,313 | -2.6% |
| 2023 | 11,464 | +1% | $57,068 | +25.9% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.