MonitorBankRates
☰
New Report Fall 2026 Housing Affordability Report: every state is less affordable than in late August as average 30-year mortgage rates passed 7%. Read the report

Fort Thompson, SD Housing Affordability Index

Fort Thompson, South Dakota has an MBR Housing Affordability Index score of 135.5 (Highly Affordable) as of October 30, 2026, ranking 189th most affordable of 263 scored South Dakota cities, compared with 111.3 statewide and 97.4 nationally. On a median-priced $150,000 home with 20% down, the South Dakota average 30-year fixed rate of 7.26% means a monthly principal and interest payment of about $819, or 21% of the city’s $47,159 median household income.

The MBR Housing Affordability Index (MBR-HAI) for Fort Thompson is updated every night from live South Dakota mortgage rates and U.S. Census Bureau income, home value and housing cost data for the city. A score of 100 equals the national average; higher scores mean homeownership is more affordable.

Fort Thompson MBR-HAI 135.5 Highly Affordable
Rank in South Dakota 189 of 263 1 = most affordable
South Dakota 111.3 Statewide score
National 97.4 100 = baseline
Avg 30-yr rate 7.26% South Dakota lenders
Median home value $150,000 U.S. Census Bureau

Fort Thompson is 24.2 points above the South Dakota score. Scores as of October 30, 2026. See the South Dakota index

View Fort Thompson Mortgage Rates

What It Takes to Buy in Fort Thompson

$819/mo
Principal & Interest
Median home, 20% down, 7.26%
$35,100
Income Needed
To keep the payment at 28% of income
$47,159
Median Household Income
South Dakota: $75,081
3.2x
Price-to-Income Ratio
South Dakota: 3.4x
$288/mo
Median Owner Costs
Mortgage, taxes, insurance, utilities
$2,549/yr
Median Property Tax
South Dakota figure
23.2%
Owner Cost Burden
Owners spending 30%+ of income on housing
35.6%
Renter Cost Burden
Renters spending 30%+ of income on rent

Source: U.S. Census Bureau American Community Survey 5-Year Estimates (2024) for Fort Thompson, South Dakota. The rate is the South Dakota average 30-year fixed rate from MonitorBankRates, since lenders publish rates by state.

How Fort Thompson Ranks in South Dakota

Powered byMonitorBankRates

Cite the Fort Thompson Score

“MonitorBankRates (MBR) Housing Affordability Index, MonitorBankRates.com, October 30, 2026. Fort Thompson, South Dakota score: 135.5 (Highly Affordable), ranked 189 of 263 South Dakota cities. monitorbankrates.com/housing-affordability-index/south-dakota/fort-thompson”