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City · 12,868 residents · Suffolk County, New York

Stony Brook , New York

In Stony Brook, a typical home is worth $623,300 and typical rent is $3,501 a month. Compared with all of Suffolk County, typical rent is 55% higher, typical household income is 34% higher, and the share of households that own their home is 9 points higher.

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  • Typical home value

    $623,300

    8% above the county

    47% above New York

    • Stony Brook
    • Suffolk
    • New York

  • Typical rent

    $3,501a month

    55% above the county

    116% above New York

    • Stony Brook
    • Suffolk
    • New York

  • Typical household income

    $174,872a year

    34% above the county

    103% above New York

    • Stony Brook
    • Suffolk
    • New York

  • Households that own their home

    91%

    9 points above the county

    36 points above New York

    • Stony Brook
    • Suffolk
    • New York

Source: U.S. Census Bureau, Average 2020–2024

Market now, with Zillow data

Zillow data
Typical home value
$791,422
9.3% more than 12 months ago

From Zillow (ZHVI), September 2026. The Census figures above are 5-year averages (2020–2024).

Stony Brook is in Suffolk County. The FHA loan limit ($1,249,125 for a one-unit home), the fair market rents and the help on this page are those of all of Suffolk County. See the county

Data updated: October 1, 2026 11 official sources

Only here

What sets Stony Brook apart

What this place has that others do not, from public data, most unusual first.

  1. Stony Brook has the highest typical rent of the 333 cities in New York with more than 5,000 people: $3,501.

  2. Nearby, in East Setauket, the typical rent is $2,178: 38% less than in Stony Brook ($3,501).

  3. The typical household income in Stony Brook is $174,872, 34% more than in Suffolk County as a whole ($130,686).

  4. Nearby, in Port Jefferson Station, the typical home value is $507,900: 19% less than in Stony Brook ($623,300).

  5. According to Zillow, in the 12 months to September 2026 the typical home value in Stony Brook rose 9.3%; in New York, it rose 5.6%.

  6. 91% of households in Stony Brook own their home, against 82% in Suffolk County.

Sources: U.S. Census Bureau (Average 2020–2024); Zillow (September 2026 data). Zillow data

The homes here

Housing in Stony Brook

What homes there are in Stony Brook, what they cost, how that changed and how people live, from Census figures (2020–2024).

What homes there are

U.S. Census Bureau, ACS 5-year, 2020–2024

Kind of home

In Stony Brook, 9 in 10 homes are single-family detached houses; in Suffolk County, 8.

Year built

In Stony Brook, half of the homes were built before 1965; in Suffolk County, before 1970.

Homes in Stony Brook are bigger: 85% have 3 bedrooms or more; in Suffolk County, 73%.

All homes, occupied or empty. A figure the Census cannot measure precisely enough here is not shown.

Census tables: B25024, B25034, B25035, B25041

What it costs here

U.S. Census Bureau, ACS 5-year, 2020–2024

Value of owner-occupied homes
Monthly rent with utilities

With a mortgage

$3,956 a month

Suffolk County: $3,320 a month

Owners with a mortgage

57%

Suffolk County: 62%

Value: what owners think their home is worth. Rent: rent plus utilities, for homes of every size. The FHA limit is the most an FHA loan (Federal Housing Administration) lends for a one-unit home; the fair market rent (FMR) is the one HUD uses for housing vouchers.

Census tables: B25075, B25063, B25088, B25081

How it changed

U.S. Census Bureau, ACS 5-year, 2015–2019 and 2020–2024

Change since 2015–2019

Homes in Stony Brook gained value more slowly than in Suffolk County: 35% since 2015–2019, against 46%.

Change between two 5-year periods that do not overlap, in each period's dollars, not adjusted for inflation.

Census tables: B25077, B25064, B19013

How people live

U.S. Census Bureau, ACS 5-year, 2020–2024

MeasureStony BrookSuffolk CountyNew YorkUnited States
Rental vacancy Unreliable estimate4.1%3.8%5.5%
Homeowner vacancy Unreliable estimate0.6%1.1%0.9%
More than one person per room Unreliable estimate2.8%5.3%3.4%
People per household 2.852.932.492.53
Drive alone 71%72%49%69%
Carpool 5%8%6%9%
Public transit 2%5%22%3%
Walk or bike Unreliable estimate2%6%3%
Work from home 20%12%15%15%
Other means Unreliable estimate2%2%2%
Typical commute 20 to 29 minutes20 to 29 minutes20 to 29 minutes20 to 29 minutes

Much as in Suffolk County, a household in Stony Brook has 2.85 people on average.

In Stony Brook, 20% of workers work from home, more than in Suffolk County (12%).

Vacancy: empty homes offered for rent or for sale. Rooms: every room in the home, not only bedrooms. Commute: the minute range of the typical worker.

Census tables: B25004, B25003, B25014, B25010, B08301, B08303

Do the math

What would you pay each month for a home in Stony Brook?

A typical home costs more than the typical income allows

We start with a typical home in Stony Brook, worth $623,300, an FHA loan with 3.5% down and the latest average rate (7.18%). That payment would take 38% of the typical household income in Stony Brook, which is $174,872 a year. For that payment to be 28% of income, a household would need to earn about $236,247 a year.

The calculator's FHA and conventional loan limits are those of all of Suffolk County.

Your numbers

Local data
$

Starts at the typical home value in Stony Brook. Change it to the price you have in mind.

Loan type
Your credit score

Your score changes which loans apply and FHA's minimum down payment. Your real rate also depends on your credit.

Down payment
%

That is $21,816 (3.5% of the price). The usual minimum for this loan is 3.5%.

This week's average ± a quarter or half point.

Term

National average as of November 5, 2026 (Freddie Mac); your rate may be different.

Adjust advanced details

Estimated monthly payment

Local data

$5,512

at 7.18% · 30 years

Loan amount
$612,010
Total interest
$880,539
Paid off in
November 2056

Includes $10,526 FHA upfront mortgage insurance premium.

Does it fit the income?

  • Comfortable

    up to $4,080 a month

  • Tight

    $4,080 to $5,246 a month

  • Hard

    more than $5,246 a month

    Your payment · 38%

Compared with the typical household income in Stony Brook ($174,872 a year). Reference: HUD calls paying more than 30% of income for housing a cost burden.

Show the result as
per month$5,512
Principal & interest$4,146
Property tax$831
Home insurance$260
FHA mortgage insurance (MIP)$276

You need at least $21,816 for the down payment, plus closing costs.

Next step

This is an estimate to give you an idea, not a loan offer. Your real payment depends on your rate, your credit, and the insurance and taxes on the home you buy.

The city and its county

Stony Brook and Suffolk County

Stony Brook is in Suffolk County, New York. The U.S. Census Bureau publishes its own numbers for the city: home values, rent, household income, how many households own their home and the property tax. They are American Community Survey estimates (average 2020–2024).

Stony Brook's own numbers

Typical home value
$623,300
Typical monthly rent
$3,501
Typical yearly household income
$174,872
Households that own their home
91%
Effective property tax rate
1.6%

U.S. Census Bureau, American Community Survey (average 2020–2024).

Numbers for all of Suffolk County

FHA limit, one-unit home
$1,249,125
Conventional limit, one unit
$1,209,750
HUD fair market rent, 2 bedrooms
$2,689
Price change over 5 years (FHFA)
+54%
Homes in a high flood-risk zone
4.3%

HUD, FHFA and FEMA don't publish these numbers by city.

Other numbers are not published by city, only for the whole county: FHA and conventional loan limits, HUD’s fair market rents, FHFA’s price index and FEMA’s flood data. On this page, those numbers always say they are for all of Suffolk County.

Everything about Suffolk County

Buying

Buying a home in Stony Brook

A typical home in Stony Brook is worth $623,300: 8% above the county and 47% above New York. With the typical household income in Stony Brook ($174,872 a year), a typical home costs 3.6 times what the household earns in a year.

Years of income to pay for a typical home

The typical home value divided by the typical household income for one year. The lower it is, the less buying weighs.

  • Stony Brook 3.6 years
  • Suffolk 4.4 years
  • New York 4.9 years
  • United States 4.1 years
Source: U.S. Census Bureau, Average 2020–2024

How prices have changed in Suffolk County

According to FHFA’s house price index, home prices in Suffolk County rose 92% in the 10 years through 2025.

FHFA does not publish this index by city: these are the numbers for all of Suffolk County.

Period County New York U.S.
Last year (2025) +5.4% +6.0% +2.9%
5 years (2020–2025) +54% +52% +47%
10 years (2015–2025) +92% +86% +85%

The index follows the price of the same homes over time (sales and appraisals with Fannie Mae and Freddie Mac loans). It is not the average price of a home. FHFA considers its annual county indexes experimental. Source: FHFA, 2025 data

Stony Brook next to Suffolk County, New York and the U.S.

Three numbers side by side. “Typical” means the median: half are above it and half below.

Typical home value
  • Stony Brook $623,300
  • Suffolk $578,400
  • New York $423,800
  • United States $332,700
Typical monthly rent
  • Stony Brook $3,501
  • Suffolk $2,255
  • New York $1,621
  • United States $1,413
Typical yearly household income
  • Stony Brook $174,872
  • Suffolk $130,686
  • New York $85,974
  • United States $80,734
See the full table
Stony Brook next to Suffolk County and New York
Measure Stony Brook Suffolk County New York U.S.
Typical home value $623,300 $578,400 $423,800 $332,700
Typical monthly rent $3,501 $2,255 $1,621 $1,413
Typical yearly household income $174,872 $130,686 $85,974 $80,734
Households that own their home 91% 82% 54% 65%
Typical yearly property tax $10,001 $10,001 $6,582 $3,119
Effective property tax rate 1.6% 1.73% 1.55% 0.94%
Renters with high rent for their income 67% 59% 52% 51%

“Typical” means the median: half are above and half are below. ▲ and ▼ say whether the city is above or below Suffolk County. “High rent” is the Census measure: renter households that pay 30% or more of their income in rent.

Four ways to pay for a typical home in Stony Brook

For a typical $623,300 home in Stony Brook, at Freddie Mac's average rate (7.18% as of November 5, 2026) over 30 years. The monthly payment adds principal and interest, Stony Brook's typical property tax, an example home insurance and mortgage insurance when it applies.

  • FHA, 3.5% down $5,512a month

    Least cash to close
    Down payment
    $21,816
    Cash to close
    $40,515
    Rate
    7.18%
    Mortgage insurance
    FHA MIP · $276

  • Conventional, 5% down $5,398a month

    Down payment
    $31,165
    Cash to close
    $49,864
    Rate
    7.18%
    Mortgage insurance
    PMI · $296

  • Conventional, 20% down, no PMI $4,469a month

    Down payment
    $124,660
    Cash to close
    $143,359
    Rate
    7.18%
    Mortgage insurance
    None

  • ITIN, 15% down (example) $5,045a month

    Down payment
    $93,495
    Cash to close
    $112,194
    Rate
    8.18%
    Mortgage insurance
    None

The option that asks for the least cash to close is FHA, 3.5% down.

  • Cash to close = down payment plus 3% of the price in closing costs (example).
  • Minimum score: FHA requires 580 or higher for the minimum down payment (HUD Handbook 4000.1). * Fannie Mae requires 620 when a loan is underwritten by hand; its automated system has no fixed minimum.
  • The ITIN row is an example with a rate 1 percentage point higher: ITIN loans follow no federal rule and each lender sets its own down payment and rate. Nothing in this table promises an approval.

How much house can I afford? Estimate closing costs

Taxes and floods

Two costs that change from place to place

Property tax and flood insurance raise or lower what you pay each month. Here are the numbers for Stony Brook and for Suffolk County.

Property tax

Effective rate in Stony Brook

1.6%of the home’s value each year

$10,001 a year for the typical owner in Stony Brook.

  • Stony Brook 1.6%
  • Suffolk 1.73%
  • New York 1.55%

What New York publishes Basic STAR school tax relief (New York State Department of Taxation and Finance)

Exemptions and deadlines in New York

Flood risk in Suffolk County

FEMA does not publish these numbers by city: they are for all of Suffolk County.

Homes in the high-risk zone
4.3%
21,119
Of those, with NFIP insurance
66%
County New York U.S.
Homes in the high-risk zone 4.3% 2% 3.5%
Of those, with NFIP insurance 66% 76% 48%

Most homeowners insurance policies do not cover flood damage.

Look up your address on FEMA’s map

Renting

Renting in Stony Brook

Typical rent in Stony Brook is $3,501 a month: 55% above the county. In Stony Brook, 67% of renter households pay 30% or more of their income in rent.

HUD publishes a fair market rent for all of Suffolk County, by unit size. To pay the 2-bedroom one ($2,689 a month) without spending more than 30% of your income, you would need to earn $51.71 an hour working full time.

HUD fair market rent for all of Suffolk County

What you need to earn to pay it without spending more than 30% of income, working full time.

Size Fair rent a month Hourly wage Yearly income
Studio $1,964 $37.77 $78,560
1 bedroom $2,285 $43.94 $91,400
2 bedrooms $2,689 $51.71 $107,560
3 bedrooms $3,458 $66.50 $138,320
4 bedrooms $3,671 $70.60 $146,840

Includes basic utilities. It isn't the lowest or highest rent: it's a reference point. Source: HUD, Fiscal year 2027

By ZIP code

Fair market rent by ZIP code in Stony Brook

HUD also publishes a fair market rent for each ZIP code (Small Area FMR, fiscal year 2027). Stony Brook is in ZIP code 11790.

For 2 bedrooms it is $3,340: $651 more than the fair market rent for Suffolk County ($2,689).

  • 11790 $3,340$4,300

1 of these ZIP codes crosses the city line: HUD sets the rent by ZIP code, not by city. A ZIP code counts for Stony Brook when at least 50% of its land is inside the city or it covers at least 15% of the city (Census 2020 boundaries). Source: Small Area Fair Market Rents (HUD) Fiscal year 2027 Small Area Fair Market Rents (HUD) Source: Census Bureau ZCTA-to-place relationship file Data from 2020 data Census Bureau ZCTA-to-place relationship file

Is your rent high for your ZIP?

Free help

Help to buy or rent in Stony Brook

You do not have to do this alone. A HUD-approved housing counseling agency helps for free or at low cost: getting ready to buy, understanding your credit, or solving a problem with your rent.

There are 10 HUD-approved agencies with an office in Suffolk County; 4 say they serve in Spanish.

A man shakes hands with the specialist who helped him with his loan, in the kitchen of his new home.

HUD counseling is free or low-cost

Assistance programs in Stony Brook

No down payment, repair or rent-help program on our list is for Stony Brook or Suffolk County. The ones below are statewide in New York: they work in Stony Brook the same as in the rest of the state.

Which programs do I qualify for? All programs in New York

Housing counselors near Stony Brook

The HUD-approved agencies closest to the center of Stony Brook, in a straight line, nearest first. If one says it serves in Spanish, its card says so.

  • Central Islip Civic Council, Inc.

    68 Wheeler Rd, Central Islip · 9 miles away · Spanish

    • Mortgage delinquency and default
    • Budget and financial counseling
    • and 3 more
    (631) 348-0669

  • Long Island Housing Services, Incorporated

    640 Johnson Ave Ste 8, Bohemia · 9 miles away · Spanish

    • Mortgage delinquency and default
    • Homelessness services
    • and 1 more
    (631) 567-5111

  • Long Island Housing Partnership, Inc.

    180 Oser Ave, Hauppauge · 9 miles away

    • Mortgage delinquency and default
    • Pre-purchase counseling
    • and 1 more
    (631) 435-4710

Every agency in Suffolk County All counseling agencies in New York

Help in Spanish near Stony Brook

2 of the 3 agencies on this list say they serve in Spanish.

Ask for service in Spanish

When you call, say “Spanish, please” or ask if someone speaks Spanish. If not, ask whether they offer an interpreter.

Housing authorities of Stony Brook

In HUD’s record, no housing authority with an office in Suffolk County is named for Stony Brook or Suffolk County.

13 other authorities have an office in Suffolk County: see the list Source: HUD

Cities

Other cities in Suffolk County

These cities are also in Suffolk County. They share its loan limits and fair market rents, but home values and rent change from one to the next.

Everything about Suffolk County Housing in New York
See 72 more cities in Suffolk County, with prices and rents

Every city has its own page with prices, rents and help.

Nearby cities

The cities closest to Stony Brook, with the typical home value.

Neighboring counties

If Suffolk County is out of reach, look next door. Each number is that county's own.

Keep going

Guides for your next step

Short explanations, in plain language and with official sources, for buying or renting in Stony Brook.

All guides
A mother holds hands with her two daughters on the beach at sunset.

Questions

Housing questions about Stony Brook

Short answers with the numbers for Stony Brook and all of Suffolk County. If your case is different, a HUD-approved counseling agency can guide you for free or at low cost.

How much does a typical home cost in Stony Brook?

The typical home value in Stony Brook is $623,300, according to the U.S. Census Bureau (average 2020–2024). For comparison, in Suffolk County it is $578,400.

How much does it cost to rent in Stony Brook?

Typical rent in Stony Brook is $3,501 a month, according to the U.S. Census Bureau. HUD’s fair market rent for 2 bedrooms in Suffolk County is $2,689.

What is the FHA loan limit in Stony Brook?

Stony Brook uses the FHA limit for all of Suffolk County (2026): $1,249,125 for a one-unit home and $2,402,625 for a four-unit home.

How much property tax do owners pay in Stony Brook?

The typical homeowner in Stony Brook pays $10,001 a year, according to the U.S. Census Bureau. That is 1.6% of the home’s value; in Suffolk County, the rate is 1.73%.

Where can I find free help to buy or rent in Stony Brook?

There are 10 HUD-approved counseling agencies with an office in Suffolk County. 4 say they serve in Spanish. They can help you get ready to buy, with your credit, or with rent.

Sources: American Community Survey (ACS) 5-year estimates (Average 2020–2024); FHA mortgage limits (HUD) (2026 data); Conforming loan limits (FHFA) (2026 data); Fair Market Rents (HUD) (Fiscal year 2027); Small Area Fair Market Rents (HUD) (Fiscal year 2027); Census Bureau ZCTA-to-place relationship file (2020 data); HUD-approved housing counseling agencies (Retrieved November 6, 2026); Public Housing Agencies (HUD) (Retrieved November 6, 2026); Freddie Mac Primary Mortgage Market Survey (PMMS) (As of November 5, 2026); FHFA House Price Index (HPI) (2025 data); Homes with flood insurance (NFIP, FEMA) (As of August 3, 2026).