Sioux City, IA-NE-SD · South Dakota
Union County
ZIP 57049
16,916 residents301 permits TTM$84,137 median HHI4 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$269,500
ACS 5-Year
Cap rate proxy
4.7%
FMR × 0.65 ÷ Home Value
Rent-to-income
15.0%
HUD FMR ÷ ACS HHI
Net migration
+1.95%
IRS SOI
Permits (TTM)
301
Census BPS
Climate risk
37.1
FEMA NRI (0–100)
ZIP 57049
Median home value
—
Gross yield
—
Buy Box score
0.7
Section 8 gap
—
Affordability
P/I: 4.9R/I: —
Section 8 detail
SAFMR: —Rent: —Gap: —
ZIP code breakdown4 ZIP codes
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Buy Box score ↓ | Section 8 gap |
|---|---|---|---|---|---|
| 57001 | — | — | — | 0.9 | — |
| 57025 | — | — | — | 0.9 | — |
| 57038 | — | — | — | 0.7 | — |
| 57049 | — | — | — | 0.7 | — |
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Demographics
Owner-occupied
71.3%
Census ACS
Vacancy rate
4.2%
Census ACS
Bachelor's degree +
36.5%
Census ACS
Rent burdened
36.2%
Census ACS (>30% income)
Median age
40.4
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