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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

Stony Brook, NY Housing Affordability Index

Stony Brook, New York has an MBR Housing Affordability Index score of 95.4 (Near National Average) as of October 30, 2026, ranking 587th most affordable of 922 scored New York cities, compared with 80.2 statewide and 97.4 nationally. On a median-priced $623,300 home with 20% down, the New York average 30-year fixed rate of 7.27% means a monthly principal and interest payment of about $3,408, or 23% of the city’s $174,872 median household income.

The MBR Housing Affordability Index (MBR-HAI) for Stony Brook is updated every night from live New York 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.

Stony Brook MBR-HAI 95.4 Near National Average
Rank in New York 587 of 922 1 = most affordable
New York 80.2 Statewide score
National 97.4 100 = baseline
Avg 30-yr rate 7.27% New York lenders
Median home value $623,300 U.S. Census Bureau

Stony Brook is 15.3 points above the New York score. Scores as of October 30, 2026. See the New York index

View Stony Brook Mortgage Rates

What It Takes to Buy in Stony Brook

$3,408/mo
Principal & Interest
Median home, 20% down, 7.27%
$146,100
Income Needed
To keep the payment at 28% of income
$174,872
Median Household Income
New York: $85,974
3.6x
Price-to-Income Ratio
New York: 4.9x
$2,838/mo
Median Owner Costs
Mortgage, taxes, insurance, utilities
$6,954/yr
Median Property Tax
New York figure
33.2%
Owner Cost Burden
Owners spending 30%+ of income on housing
59.9%
Renter Cost Burden
Renters spending 30%+ of income on rent

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

Cite the Stony Brook Score

“MonitorBankRates (MBR) Housing Affordability Index, MonitorBankRates.com, October 30, 2026. Stony Brook, New York score: 95.4 (Near National Average), ranked 587 of 922 New York cities. monitorbankrates.com/housing-affordability-index/new-york/stony-brook”