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Buying a home in Port Jefferson, New York

The typical owner-occupied home in Port Jefferson is worth about $655,800, 55% above the New York median of $423,800 and 97% above the national median of $332,700. Owners pay a median $10,001 a year in property taxes, about 1.53% of their home's value, close to the New York rate of 1.55%. The median household earns $144,912 a year, so the median home costs 4.5 times the median income (4.9 times for New York). 72% of occupied homes here are lived in by their owners, and 57% of those owners still have a mortgage.

Port Jefferson at a glance

Port Jefferson New York U.S.
Median home value $655,800 $423,800 $332,700
Median property tax paid per year $10,001 $6,582 $3,119
Property tax as a share of value 1.53% 1.55% 0.94%
Median household income $144,912 $85,974 $80,734
Homes lived in by their owners 72% 54% 65%
Owner homes with a mortgage 57% 58% 61%
Median monthly costs, owners with a mortgage $3,780 $2,555 $1,963
Those costs as a share of the owners' income 21.8% 22.5% 21.0%
Median rent $2,349 $1,621 $1,413
Rent as a share of renters' income 26.0% 31.2% 30.6%
Median year homes were built 1972 1959 1980
Vacant homes 8.6% 10.0% 10.1%
Population 8,091 19,852,366 334,922,499

What a typical home costs per month in Port Jefferson

At this week's average 30-year rate of 7.11%, buying the median Port Jefferson home of $655,800 with 20% down costs about $4,639 a month, including property taxes and insurance. With an FHA loan and 3.5% down, it's about $5,731, because the loan is bigger and FHA adds mortgage insurance.

Lenders usually want housing costs under about 28% of gross income, which means an income of roughly $198,801 for the 20%-down payment. That payment is 38% of the median Port Jefferson household income of $144,912; at that income and 20% down, the 28% guideline points to a home of about $478,000.

The median rent here is $2,349 a month, so owning the median home costs about $2,290 a month more than renting, before you count the equity you build and any tax benefits.

20% down, 30-year conventional loan
Down payment$131,160
Loan amount$524,640
Principal and interest$3,529
Property taxes (1.53% a year)$836
Homeowners insurance (our estimate, 0.5% a year)$273
PMI$0
Total per month$4,639

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3.5% down, 30-year FHA loan
Down payment$22,953
Loan amount$643,922
Principal and interest$4,332
Property taxes (1.53% a year)$836
Homeowners insurance (our estimate, 0.5% a year)$273
FHA mortgage insurance$290
Total per month$5,731

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Questions about home buying in Port Jefferson

What is the median home value in Port Jefferson?

About $655,800 for owner-occupied homes, according to the Census Bureau's 2020–2024 American Community Survey.

How much are property taxes in Port Jefferson?

Homeowners pay a median $10,001 a year, which is about 1.53% of the median home value. Your bill depends on your home's assessed value and local rates.

What income do you need to buy a home in Port Jefferson?

For the median home with 20% down at 7.11%, the payment is about $4,639 a month. Keeping that under 28% of gross income takes about $198,801 a year.

More about Port Jefferson

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates; Freddie Mac Primary Mortgage Market Survey, week of November 12, 2026. Estimates for small places have wide margins of error. About our data