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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

South Plainfield, NJ Housing Affordability Index

South Plainfield, New Jersey has an MBR Housing Affordability Index score of 95.1 (Near National Average) as of October 30, 2026, ranking 190th most affordable of 455 scored New Jersey cities, compared with 83.4 statewide and 97.4 nationally. On a median-priced $470,900 home with 20% down, the New Jersey average 30-year fixed rate of 7.27% means a monthly principal and interest payment of about $2,574, or 24% of the city’s $130,239 median household income.

The MBR Housing Affordability Index (MBR-HAI) for South Plainfield is updated every night from live New Jersey 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.

South Plainfield MBR-HAI 95.1 Near National Average
Rank in New Jersey 190 of 455 1 = most affordable
New Jersey 83.4 Statewide score
National 97.4 100 = baseline
Avg 30-yr rate 7.27% New Jersey lenders
Median home value $470,900 U.S. Census Bureau

South Plainfield is 11.6 points above the New Jersey score. Scores as of October 30, 2026. See the New Jersey index

View South Plainfield Mortgage Rates

What It Takes to Buy in South Plainfield

$2,574/mo
Principal & Interest
Median home, 20% down, 7.27%
$110,300
Income Needed
To keep the payment at 28% of income
$130,239
Median Household Income
New Jersey: $103,556
3.6x
Price-to-Income Ratio
New Jersey: 4.4x
$2,334/mo
Median Owner Costs
Mortgage, taxes, insurance, utilities
$8,565/yr
Median Property Tax
1.82% of median value
28.3%
Owner Cost Burden
Owners spending 30%+ of income on housing
46.8%
Renter Cost Burden
Renters spending 30%+ of income on rent

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

Cite the South Plainfield Score

“MonitorBankRates (MBR) Housing Affordability Index, MonitorBankRates.com, October 30, 2026. South Plainfield, New Jersey score: 95.1 (Near National Average), ranked 190 of 455 New Jersey cities. monitorbankrates.com/housing-affordability-index/new-jersey/south-plainfield”