Home Insurance in Sinai, South Dakota
The median home value in Sinai is $89,300, 66% lower than the Brookings County median.
The median home in Sinai was built in 1939 or earlier. About 73% of homes were built before 1960, about 48 points above Brookings County's 24%. Because older housing stock often has aging wiring, roofing or plumbing, it can cost more to insure or rebuild.
The housing stock in Sinai is 98% single-family homes and 2% mobile or manufactured homes.
88% of owner-occupied homes in Sinai carry a mortgage, and mortgage lenders require hazard insurance for as long as the loan is active.
The vacancy rate is 7%; vacant or unoccupied homes typically need a different coverage form than an owner-occupied policy. About 67% of occupied homes in Sinai are owner-occupied.
In Sinai, 67% of homes are primarily heated with propane. Homes heated with propane can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies.
Brookings County's top FEMA-rated hazard is winter weather (Relatively High), per FEMA's National Risk Index. Brookings County had 68 active NFIP flood policies as of September 2026. See the full Brookings County home insurance overview for all FEMA hazard ratings and flood coverage details.
In South Dakota, the statewide average premium for a standard HO-3 homeowners policy is $1,614 per year (NAIC, 2023 data).
Key figures
| Median home value | $89,300 |
|---|---|
| Median year built | 1939 or earlier |
| Owner-occupied share | 67% |
| Share of owner-occupied homes with a mortgage | 88% |
| Top county hazard | Winter Weather (Relatively High) |
| Active NFIP policies in Brookings County | 68 |
| Home insurance premium | $1,614 - statewide average (NAIC, 2023 data) |
Nearby towns
Sources
Data last updated: 2026-09-29
- U.S. Census Bureau Gazetteer Files (2024)
- U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates (2024)
- FEMA National Risk Index (December 2025)
- FEMA OpenFEMA NFIP Redacted Policies v3 (2026)
- NAIC Dwelling Fire, Homeowners Owner-Occupied, and Homeowners Tenant and Condominium/Cooperative Unit Owners Insurance: Data for 2023 (published 2026) (2023)