Rapid City, SD · South Dakota
Custer County
8,686 residents258 permits TTM$81,958 median HHI2 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$327,200
ACS 5-Year
Cap rate proxy
4.1%
FMR × 0.65 ÷ Home Value
Rent-to-income
16.4%
HUD FMR ÷ ACS HHI
Net migration
+1.49%
IRS SOI
Permits (TTM)
258
Census BPS
Climate risk
16.3
FEMA NRI (0–100)
ZIP code breakdown2 ZIP codes
Sort by any column. Click a ZIP for detail.
Demographics
Owner-occupied
85.6%
Census ACS
Vacancy rate
21.3%
Census ACS
Bachelor's degree +
32.1%
Census ACS
Rent burdened
23.5%
Census ACS (>30% income)
Median age
57.2
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