Iowa
Sioux County
ZIP 51238
35,984 residents251 permits TTM$84,736 median HHI13 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$235,600
ACS 5-Year
Cap rate proxy
4.5%
FMR × 0.65 ÷ Home Value
Rent-to-income
12.6%
HUD FMR ÷ ACS HHI
Net migration
+0.59%
IRS SOI
Permits (TTM)
251
Census BPS
Climate risk
52.4
FEMA NRI (0–100)
ZIP 51238
Median home value
$252,282
Gross yield
4.6%
Cap rate
4.2%
Rent gap
8.6%
Affordability
P/I: 3.0R/I: —
Section 8 detail
SAFMR: $971Rent: $888Gap: 9.3%
ZIP code breakdown13 ZIP codes
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Cap rate | Rent gap |
|---|---|---|---|---|---|
| 51003 | $289,656 | $971 | 4.0% | 3.7% | 8.6% |
| 51011 | $235,600county est. | $971 | 4.9% | 4.5% | 8.6% |
| 51023 | $187,434 | $971 | 6.2% | 5.7% | 8.6% |
| 51027 | $262,284 | $971 | 4.4% | 4.1% | 8.6% |
| 51036 | $235,600county est. | $971 | 4.9% | 4.5% | 8.6% |
Ranked by composite score
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Demographics
Owner-occupied
77.8%
Census ACS
Vacancy rate
4.5%
Census ACS
Bachelor's degree +
30.4%
Census ACS
Rent burdened
35.5%
Census ACS (>30% income)
Median age
34.0
Census ACS
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026