South Dakota
Walworth County
5,298 residents5 permits TTM$62,722 median HHI4 ZIP codesUpdated April 28, 2026
Investor first look
Median home value
$130,000
ACS 5-Year
Cap rate proxy
8.9%
FMR × 0.65 ÷ Home Value
Rent-to-income
18.4%
HUD FMR ÷ ACS HHI
Net migration
—
IRS SOI
Permits (TTM)
5
Census BPS
Climate risk
39.5
FEMA NRI (0–100)
ZIP code breakdown4 ZIP codes
Numbers repeat across ZIPs in this county
ZIP-level home-value data isn't published for rural areas. Federal sources (Census ACS, HUD non-metro FMR) are available at the county level only, so home-value, cap-rate, and rent-gap numbers use the county estimate for every ZIP in the county.
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Cap rate ↓ | Rent gap |
|---|---|---|---|---|---|
| 57420 | $130,000county est. | $980 | 9.0% | 8.9% | 1.8% |
| 57452 | $130,000county est. | $980 | 9.0% | 8.9% | 1.8% |
| 57472 | $130,000county est. | $980 | 9.0% | 8.9% | 1.8% |
| 57631 | $130,000county est. | $980 | 9.0% | 8.9% | 1.8% |
Sort by any column. Click a ZIP for detail. Rent gap: green = HUD FMR above market rent.
Demographics
Owner-occupied
74.2%
Census ACS
Vacancy rate
18.5%
Census ACS
Bachelor's degree +
31.1%
Census ACS
Rent burdened
37.4%
Census ACS (>30% income)
Median age
41.6
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 28, 2026