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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

Isabel, SD Housing Affordability Index

Isabel, South Dakota has an MBR Housing Affordability Index score of 369.0 (Highly Affordable) as of October 30, 2026, ranking 7th most affordable of 263 scored South Dakota cities, compared with 111.3 statewide and 97.4 nationally. On a median-priced $48,200 home with 20% down, the South Dakota average 30-year fixed rate of 7.26% means a monthly principal and interest payment of about $263, or 5% of the city’s $68,750 median household income.

The MBR Housing Affordability Index (MBR-HAI) for Isabel 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.

Isabel MBR-HAI 369.0 Highly Affordable
Rank in South Dakota 7 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 $48,200 U.S. Census Bureau

Isabel is 257.7 points above the South Dakota score. Scores as of October 30, 2026. See the South Dakota index

View Isabel Mortgage Rates

What It Takes to Buy in Isabel

$263/mo
Principal & Interest
Median home, 20% down, 7.26%
$11,300
Income Needed
To keep the payment at 28% of income
$68,750
Median Household Income
South Dakota: $75,081
0.7x
Price-to-Income Ratio
South Dakota: 3.4x
$615/mo
Median Owner Costs
Mortgage, taxes, insurance, utilities
$1,712/yr
Median Property Tax
3.55% of median value
23.2%
Owner Cost Burden
Owners spending 30%+ of income on housing
5.0%
Renter Cost Burden
Renters spending 30%+ of income on rent

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

Cite the Isabel Score

“MonitorBankRates (MBR) Housing Affordability Index, MonitorBankRates.com, October 30, 2026. Isabel, South Dakota score: 369.0 (Highly Affordable), ranked 7 of 263 South Dakota cities. monitorbankrates.com/housing-affordability-index/south-dakota/isabel”