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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

Port Barrington, IL Housing Affordability Index

Port Barrington, Illinois has an MBR Housing Affordability Index score of 115.5 (More Affordable Than Average) as of October 30, 2026, ranking 980th most affordable of 1,249 scored Illinois cities, compared with 102.2 statewide and 97.4 nationally. On a median-priced $379,600 home with 20% down, the Illinois average 30-year fixed rate of 7.31% means a monthly principal and interest payment of about $2,085, or 17% of the city’s $149,886 median household income.

The MBR Housing Affordability Index (MBR-HAI) for Port Barrington is updated every night from live Illinois 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.

Port Barrington MBR-HAI 115.5 More Affordable Than Average
Rank in Illinois 980 of 1,249 1 = most affordable
Illinois 102.2 Statewide score
National 97.4 100 = baseline
Avg 30-yr rate 7.31% Illinois lenders
Median home value $379,600 U.S. Census Bureau

Port Barrington is 13.3 points above the Illinois score. Scores as of October 30, 2026. See the Illinois index

View Port Barrington Mortgage Rates

What It Takes to Buy in Port Barrington

$2,085/mo
Principal & Interest
Median home, 20% down, 7.31%
$89,300
Income Needed
To keep the payment at 28% of income
$149,886
Median Household Income
Illinois: $83,390
2.5x
Price-to-Income Ratio
Illinois: 3.2x
$2,341/mo
Median Owner Costs
Mortgage, taxes, insurance, utilities
$9,175/yr
Median Property Tax
2.42% of median value
18.8%
Owner Cost Burden
Owners spending 30%+ of income on housing
62.5%
Renter Cost Burden
Renters spending 30%+ of income on rent

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

Cite the Port Barrington Score

“MonitorBankRates (MBR) Housing Affordability Index, MonitorBankRates.com, October 30, 2026. Port Barrington, Illinois score: 115.5 (More Affordable Than Average), ranked 980 of 1,249 Illinois cities. monitorbankrates.com/housing-affordability-index/illinois/port-barrington”