South Dakota

Day County

5,460 residents33 permits TTM$62,270 median HHI7 ZIP codesUpdated April 28, 2026
Investor first look

Median home value

$155,100

ACS 5-Year

Cap rate proxy

4.8%

FMR × 0.65 ÷ Home Value

Rent-to-income

12.0%

HUD FMR ÷ ACS HHI

Net migration

IRS SOI

Permits (TTM)

33

Census BPS

Climate risk

27.6

FEMA NRI (0–100)

ZIP code breakdown7 ZIP codes

Numbers repeat across most 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.

ZIPMedian home valueRent (FMR 2BR)Gross yieldCap rateRent gap
57219$155,100county est.$9297.2%4.8%32.9%
57239$155,100county est.$9297.2%4.8%32.9%
57261$155,100county est.$9297.2%4.8%32.9%
57273$155,100county est.$9297.2%4.8%32.9%
57274$223,650$9295.0%3.3%32.9%

Ranked by composite score

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Demographics

Owner-occupied

75.8%

Census ACS

Vacancy rate

31.8%

Census ACS

Bachelor's degree +

21.3%

Census ACS

Rent burdened

22.0%

Census ACS (>30% income)

Median age

47.1

Census ACS

Data sources
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