countyscore
42.9
County Score
Income & Jobs 99.2Health 91.9Schools 73.2

County Report Card

About Suffolk County, New York

High costs drag down national standing

Suffolk County’s composite score of 42.9 sits well below the national median of 50.0. Despite massive economic advantages, the extreme cost of living and high risk factors lower its overall ranking relative to the rest of the country.

Lagging behind the state average

The county's 42.9 score falls short of the New York state average of 47.0. While it is an economic powerhouse, it faces significant structural challenges that make it less balanced than many upstate counterparts.

Elite incomes and superior healthcare

Suffolk County dominates with an income score of 99.2, fueled by a median household income of $128,329. It also provides world-class health services, earning a health score of 91.9, and boasts a high school score of 73.2.

Severe affordability and environmental risks

The cost score is a dismal 0.6, with median home values at $539,500 and rents averaging $2,190. A risk score of 2.7 also highlights the county's extreme vulnerability to coastal and climate-related events.

A destination for high-earning professionals

This county is built for high-income earners who want access to top-tier schools and healthcare and can afford the premium price tag. It suits those who prioritize economic opportunity and health over cost and climate resilience.

Score breakdown

Tax4.6Cost0.6Safety40.4Health91.9Schools73.2Income99.2Risk2.7Water71.3Weather66.8
🏛4.6
Property Tax
Effective property tax rate vs national benchmarks
TaxByCounty →
🏠0.6
Cost of Living
Median rent, home values, and housing affordability
CostByCounty →
💼99.2
Income & Jobs
Median household income and per capita earnings
IncomeByCounty →
🛡40.4
Safety
Violent and property crime rates per 100K residents
CrimeByCounty →
❤91.9
Health
Life expectancy, uninsured rates, and health access
HealthByCounty →
🎓73.2
Schools
Graduation rates, per-pupil spending, and attainment
SchoolsByCounty →
⚡2.7
Disaster Risk
FEMA National Risk Index — flood, fire, tornado, and more
RiskByCounty →
💧71.3
Water Quality
EPA drinking water health violations and safety grades
WaterByCounty →
🌤66.8
Weather & Climate
Average temperatures, precipitation, and extreme weather events
WeatherByCounty →
🪨63.6
Soil Quality
Soil composition, pH, drainage, and organic matter content
SoilByCounty →
🌱58
Lawn Care
Lawn difficulty score based on climate, soil, and grass suitability
LawnByCounty →
🛒
Farmers Markets
Local market density, SNAP/EBT acceptance, and product variety
MarketsByCounty →
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Deep Dives

Suffolk County across the ByCounty Network

Detailed analysis from 10 data dimensions — each powered by a dedicated ByCounty site.

Property Tax in Suffolk County

via TaxByCounty

Suffolk taxes well below national median

Suffolk County's effective tax rate of 1.854% ranks in the 28th percentile nationally—well below the national median of 2.09%. Yet its median property tax of $10,001 is nearly four times the national median of $2,690, reflecting Long Island's steep home values averaging $539,500.

Lowest tax rate among all sample counties

Suffolk's effective rate of 1.854% is the lowest among the eight profiled New York counties and well below the state average of 2.046%. Despite this favorable rate, the median tax bill of $10,001 dwarfs the state median of $4,709 because Suffolk homes command premium prices.

Most affordable rate in the cohort

Suffolk's 1.854% rate is notably lower than all regional peers, from Ulster County (1.944%) to Steuben County (2.523%). The trade-off: while Suffolk's tax rate is easiest on the percentage, its actual dollar burden is the heaviest due to extreme home values.

Annual tax on typical Suffolk home

A homeowner with the county's median-valued property of $539,500 pays approximately $10,001 annually in property taxes. This figure remains identical whether the property carries a mortgage or not.

Even modest appeals yield big savings

Suffolk County homeowners benefit from the lowest tax rate in the group, but high home values mean even small assessment errors cost thousands. If your home's assessed value seems inflated compared to recent comparable sales, filing an appeal could save you five figures over time.

Full property tax analysis on TaxByCounty

Cost of Living in Suffolk County

via CostByCounty

Suffolk: High earners, high housing costs

Suffolk County's rent-to-income ratio of 20.5% exceeds the national average despite a median household income of $128,329—nearly 72% above the U.S. median. At $2,190 per month, median rent reflects Long Island's regional market dynamics, where high incomes coexist with premium housing costs.

Least affordable county in New York

Suffolk County has the highest rent-to-income ratio in our dataset at 20.5%, significantly above New York's 17.6% state average. Despite earning the most of any county studied here, residents allocate substantially more income to housing, underscoring Long Island's affordability crisis.

Drastically pricier than upstate peers

Suffolk County's $2,190 median rent towers over upstate comparables like Seneca ($925), Steuben ($878), and Tioga ($914)—some paying 2.5 times less. Even Ulster County, Westchester's southern neighbor, charges only $1,335 rent, making Suffolk's prices distinctly unaffordable by regional standards.

Where income meets expensive housing

Median rent reaches $2,190 monthly while homeownership costs $2,549, consuming 20.5% and 23.7% of household income respectively. With a median home value of $539,500, homeownership requires exceptional earning power—accessible only to the county's well-compensated professionals.

Suffolk demands serious earning power

Suffolk County is best suited for high-income households earning $120,000+ annually; anyone else will struggle with its 20.5% rent-to-income burden. If you're considering relocation away from Suffolk, upstate counties like Steuben offer identical or better quality of life while cutting housing costs by 65–75%.

Full cost of living analysis on CostByCounty

Income & Jobs in Suffolk County

via IncomeByCounty

Suffolk far exceeds national income

Suffolk County's median household income of $128,329 nearly doubles the national median of $74,755, placing it among the wealthiest counties in America. This $53,574 advantage reflects a strong suburban economy anchored by professional services, technology, and established wealth.

Suffolk dominates New York's income rankings

At $128,329, Suffolk County ranks in the top tier of New York's 62 counties, significantly outpacing the state median of $76,433. Only a handful of New York counties match Suffolk's earning power, primarily wealthy Manhattan and Westchester suburbs.

Vastly wealthier than regional counterparts

Suffolk's $128,329 income dwarfs neighboring Tompkins County ($73,012) and Ulster County ($81,804) by substantial margins. This gap reflects Suffolk's position as a premier Long Island suburb with access to high-wage jobs and professional opportunities.

High income, high costs on Long Island

Despite Suffolk's strong income, residents face a rent-to-income ratio of 20.5% and median home values of $539,500—significantly higher than less affluent counties. The wealth here comes with correspondingly elevated housing and living costs that demand careful financial planning.

Maximizing wealth in Suffolk County

With median household income at $128,329, Suffolk residents should leverage their earnings through diversified investments, real estate strategies, and tax-efficient wealth building. Consulting with financial advisors about portfolio diversification, retirement optimization, and generational wealth planning can significantly amplify long-term financial security.

Full income & jobs analysis on IncomeByCounty

Safety in Suffolk County

via CrimeByCounty

Suffolk remains safer than national benchmarks

Suffolk County maintains a 97.9 safety score, which sits well above the national baseline. Its crime rate of 1,357.4 per 100,000 residents is roughly 43% lower than the national average of 2,385.5.

Ranking slightly below state safety averages

With a safety score of 97.9, Suffolk falls just below the New York state average of 98.3. Its total crime rate of 1,357.4 is higher than the state average of 1,074.4, reflecting its dense population and suburban challenges.

Comparing Suffolk to upstate counterparts

Suffolk’s crime rate is considerably higher than rural Ulster County’s 776.3. However, it manages safety more effectively than Tompkins County, which records over 2,000 crimes per 100,000 residents.

Property crime drives local statistics

Suffolk sees a violent crime rate of 88.2, which is significantly lower than the state average of 125.0. Property crime makes up the bulk of local incidents at 1,269.2 per 100,000, underscoring the importance of securing personal assets.

Prioritize residential security in Suffolk

With 22 reporting agencies monitoring the county, residents are encouraged to use smart home technology to deter property theft. Vigilance remains key in maintaining Suffolk’s status as a safe coastal community.

Full safety analysis on CrimeByCounty

Health in Suffolk County

via HealthByCounty

Suffolk County leads New York on health

Suffolk County's 79.4-year life expectancy exceeds both the U.S. average (79.1) and New York's state average (77.9)—making it among the healthiest counties in the state. Only 12.5% of residents report poor or fair health, significantly below national and state norms.

Top tier for health outcomes statewide

Suffolk ranks among the highest-performing New York counties for life expectancy and self-reported health. With a 5.7% uninsured rate slightly above the state average, most Suffolk residents maintain healthcare coverage.

Strongest health metrics in the region

Suffolk's 79.4-year life expectancy and 12.5% poor/fair health rate outpace all neighboring upstate counties, including regional leaders like Tompkins (80.9 life expectancy) and Ulster (78.8). Suffolk's 71 primary care providers per 100,000 residents rank second only to Tompkins (80) in the cohort.

Abundant providers support comprehensive care

Suffolk boasts 71 primary care providers per 100,000 residents and an exceptional 331 mental health providers per 100,000—well above regional and national standards. This robust infrastructure enables residents to access preventive, routine, and behavioral health services with minimal delays.

Maintain your coverage advantage

With health outcomes already strong, ensure continuity by reviewing your insurance options annually at ny.gov/healthplan or calling 1-855-355-5777 to keep your coverage optimized for your family's needs.

Full health analysis on HealthByCounty

Schools in Suffolk County

via SchoolsByCounty

A Massive Infrastructure of Suburban Excellence

Suffolk County features a staggering 341 public schools across 73 districts, serving over 223,235 students. The system is dominated by 207 elementary schools and a robust network of middle and high schools. This is one of the most complex and well-resourced educational landscapes in the United States.

High Investment Yields Elite Graduation Rates

Suffolk County boasts an impressive 89.4% graduation rate, far exceeding state and national benchmarks. Spending is exceptionally high at $18,493 per pupil, which is over $5,000 more than the national average. The resulting school score of 78.0 places the county among the state's top educational performers.

Brentwood and Sachem Anchor the Island

Brentwood Union Free School District is the largest in the county, educating 17,826 students across 17 schools. Sachem Central and Middle Country Central follow with 11,727 and 9,404 students respectively. Charter schools are rare here, making up just 0.6% of the total school landscape with only two campuses.

Vibrant Suburban Campuses and Large Schools

The county is almost entirely suburban, with 316 schools located in developed residential settings. Average school size is high at 655 students, led by Brentwood High School’s massive enrollment of 4,641 students. Attending school here feels like being part of a large, resource-rich community with extensive extracurricular and academic opportunities.

Invest in a High-Value Education Hub

Suffolk County is a premier destination for families who prioritize elite public education and suburban amenities. Homes in districts like Brentwood or Sachem offer access to high-funding environments that drive student success. When choosing a neighborhood, the county’s strong 89.4% graduation rate is a primary draw for homebuyers.

Full schools analysis on SchoolsByCounty

Disaster Risk in Suffolk County

via RiskByCounty

Suffolk County's Elevated Risk Status

Suffolk County scores 97.33 with a Relatively High rating, placing it in New York's highest-risk tier and well above the state average of 69.42. The county faces severe exposure across virtually all major hazard categories, from hurricanes to earthquakes.

Highest Risk County in New York

Suffolk County's composite score of 97.33 ranks it as the state's riskiest county by a significant margin, driven by extreme vulnerabilities to hurricanes (96.83), floods (98.60), and earthquakes (95.90). Long Island's coastal geography and density compound these multi-hazard exposures.

Far Exceeds Regional Risk Profiles

Suffolk County's 97.33 score dwarfs all other counties in this analysis, nearly twice the risk of Ulster County (87.69) and far beyond St. Lawrence County (77.89). This exceptional elevation reflects its unique exposure as a densely populated coastal peninsula.

Hurricanes, Floods, and Tornadoes

Suffolk County faces extreme hurricane risk (96.83), flood risk (98.60), and elevated tornado risk (74.75)—all among the nation's highest for any county. Earthquake risk at 95.90 also presents significant concern, particularly for aging infrastructure and newer residential areas.

Comprehensive Insurance Essential

Suffolk County residents must secure comprehensive flood insurance, hurricane-grade wind coverage, and earthquake protection to adequately protect their homes and assets. Properties in coastal and low-lying areas face compounded risk and should also consider storm surge and elevation strategies.

Full disaster risk analysis on RiskByCounty

Weather & Climate in Suffolk County

via WeatherByCounty

A Mild Coastal Outlook in Suffolk

Suffolk County averages 52.6°F annually, placing it very close to the national median temperature for a temperate maritime climate. Its coastal position helps moderate the air compared to the harsher extremes seen in the American interior.

Warmest Among New York Counties

With an annual average of 52.6°F, Suffolk is significantly warmer than the New York state average of 47.4°F. This reflects the island's unique position as one of the state's most temperate regions.

Maritime Influence Dampens Regional Extremes

While neighboring inland counties face sharper temperature drops, Suffolk maintains a steadier profile with 45.2 inches of annual precipitation. This is slightly wetter than the state average of 43.3 inches due to frequent Atlantic storm tracks.

Milder Winters and Humid Summers

Winter brings a manageable 29.3 inches of snow, far below the upstate norm, with January averages staying at 31.8°F. Summers are warm but rarely scorching, averaging 8 days per year where temperatures hit or exceed 90°F.

Prepare for Salt and Humidity

Residents should invest in dehumidification systems to manage the 74.0°F July humidity. Additionally, coastal homeowners need to plan for high-moisture weather events given the 45.2 inches of annual rainfall.

Full weather & climate analysis on WeatherByCounty

Soil Quality in Suffolk County

via SoilByCounty

Unique Acidic Entisols on the Island

Suffolk County’s soil is quite acidic with a pH of 4.23, which is significantly lower than the state average of 5.11. The dominant taxonomic order is Entisols, representing young soils with limited horizon development. Despite the low pH, the county maintains a respectable soil score of 63.6.

Sandy Shores and Easy Drainage

The soil is notably sandy at 55.4%, with only 19.5% silt and 5.8% clay. This creates a very loose, workable texture that drains very efficiently but has low natural nutrient retention. Gardeners here often need to add amendments to keep nutrients from leaching away.

Surprising Richness and High Water Holding

Suffolk boasts a high organic matter content of 25.91%, well above the state average of 17.01%. This contributes to an available water capacity of 0.210 in/in, which is higher than the state average of 0.182 in/in. This extra organic matter is crucial for holding moisture in the sandy profile.

Moderately Well Drained Coastal Soils

The county is characterized by a moderately well drained class, which is ideal for avoiding root rot in the humid island climate. However, the high sand content means water moves quickly through the profile. This makes precise irrigation and fertilization essential for local agriculture.

Thriving in the Long Island Zone 7b

The mild 7b climate allows for a long growing season and the cultivation of specialty crops like wine grapes and tender greens. The acidic Entisols are particularly well-suited for blueberries and hydrangeas. Your coastal garden can flourish here with attention to pH and nutrient levels.

Full soil quality analysis on SoilByCounty

Lawn Care in Suffolk County

via LawnByCounty

Coastal Complexity in Suffolk County

Suffolk County faces a moderate challenge with a lawn difficulty score of 58.0, which is lower than the state average. While the 7b hardiness zone offers a longer growing season, the unique coastal soil and climate conditions require specialized care.

Long Growing Seasons and Maritime Moisture

Lawns benefit from 45.2 inches of annual rain and a robust 3,094 growing degree days, the highest among the studied counties. The frost-free window is extensive, stretching from April 10th to November 6th, allowing for more mowing cycles than upstate. However, the 8 extreme heat days and high humidity can increase the risk of turf diseases.

Managing Sandy, High-Acid Soils

The soil pH is a very low 4.23, which is far below the ideal range for standard lawn grasses. Combined with a high sand content of 55.4%, the 'moderately well drained' soil loses nutrients and water rapidly. Heavy lime applications and organic matter amendments are essential to make this soil hospitable for a healthy green lawn.

Protecting Lawns from Sandy Desiccation

The county experienced 23 weeks of drought last year, and the entire area is currently classified as abnormally dry. In such sandy soil, water moves through the root zone quickly, making it vital to water deeply rather than frequently. Using drought-tolerant grass varieties can help manage the high drainage rates and current dry conditions.

Coastal Grass Choices for Zone 7b

Tall fescues are highly recommended for Suffolk because their deep roots can reach water in sandy soil and survive the 74°F July average. Seed your lawn in early April or mid-September to take full advantage of the long growing season. This ensures your turf is established before the summer heat or the late November frost.

Full lawn care analysis on LawnByCounty

Frequently Asked Questions

What is Suffolk County's county score?
Suffolk County, New York has a composite county score of 42.9 out of 100 on CountyScore. This score is calculated from a weighted average of available data dimensions including property tax, cost of living, income, safety, health, and schools.
How does Suffolk County rank among counties in New York?
Suffolk County ranks #42 among all counties in New York on CountyScore's composite ranking. Rankings are based on available data dimensions and updated as new data is added.
What are property taxes like in Suffolk County, New York?
The median annual property tax in Suffolk County is $10,001, with an effective tax rate of 1.85%. This earns Suffolk County a tax score of 4.6/100 on CountyScore (higher = lower taxes).
What is the median household income in Suffolk County?
The median household income in Suffolk County, New York is $128,329 per year according to U.S. Census Bureau data. Suffolk County earns an income score of 99.2/100 on CountyScore.
Is Suffolk County, New York a good place to live?
Suffolk County scores 42.9/100 on CountyScore's overall county ranking, ranking #42 in New York. The best way to evaluate Suffolk County is to compare individual dimension scores — property tax, cost of living, income, safety, health, and schools — based on your personal priorities. Use CountyScore to compare Suffolk County with other counties side by side.

ByCounty Network

🏛Property Tax🏠Cost of Living💼Income & Jobs🛡Safety❤Health🎓Schools⚡Disaster Risk💧Water Quality🌤Weather & Climate🪨Soil Quality🌱Lawn Care🛒Farmers Markets

Data from U.S. Census Bureau ACS, FBI UCR, CDC, FEMA NRI, NCES, EPA SDWIS, NOAA — informational only.