County profile · New York
Suffolk County, NY market data
Population, household spending and competition for 56 business types in Suffolk County, each scored against other counties.
- Population, 2025
- 1,546,090
- +1.6% since 2020
- Households
- 494,405
- Median household income
- $130,686
- +29.4% vs. 2015–2019, before inflation
- Median home value
- $578,400
- Jobs located here
- 624,016
- Highest market score
- 79
- Oil change and quick lube, #10 of 479 scored counties
A site report maps the competitors on map listings around any address in Suffolk County by name and distance, and the households and spending within reach. Or open the report at the center of Suffolk County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
An estimated 1,546,090 people live in Suffolk County, in 494,405 households. Population estimates put the population change in Suffolk County from 2020 to 2025 at +1.6%, slower than the U.S. (+3.1%). The median household income in Suffolk County is $130,686 a year, 62% above the U.S. median of $80,734. That rose 29.4% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Suffolk County spend the most on child care and other personal services (an index of 160, where 100 is the U.S. average) and the least on gasoline and other fuels (90).
The highest Groundwork market scores in Suffolk County are for oil change and quick-lube shops (79), roofing and gutter companies (69) and funeral homes (68). Suffolk County ranks #10 of 479 scored counties for oil change and quick-lube shops.
Suffolk County is part of the New York-Newark-Jersey City metro area. For its number of households, Suffolk County has the most map listings, relative to the U.S., for yoga, Pilates and fitness studios (2.1 times the U.S. rate) and the fewest for oil change and quick-lube shops (57% below the U.S. rate).
All 56 business types in Suffolk County
Highest Groundwork market score first. Each score compares Suffolk County with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Oil change and quick lube | 79 | #10 of 479 | 17 | 0.3 | $31.4M | 229 | 21 |
| Roofing and gutters | 69 | #174 of 1,177 | 187 | 3.8 | $10.8M | 127 | 107 |
| Funeral homes | 68 | #283 of 1,472 | 115 | 2.3 | $768K | 113 | 85 |
| Property management | 65 | #195 of 910 | 104 | 2.1 | Index only | 190 | 336 |
| Child care and preschools | 65 | #385 of 1,611 | 321 | 6.5 | $1.4M | 143 | 414 |
| Convenience stores | 63 | #641 of 2,261 | 376 | 7.6 | $10.4M | 132 | 359 |
| Tire shops | 60 | #517 of 1,530 | 190 | 3.8 | $2.8M | 112 | 95 |
| Urgent care and walk-in clinics | 59 | #102 of 325 | 25 | 0.5 | $30.2M | 123 | 55 |
| Gyms | 57 | #640 of 1,792 | 510 | 10.3 | $1.4M | 109 | 283 |
| Grocery and convenience stores | 57 | #895 of 2,402 | 1,094 | 22.1 | $3.6M | 106 | 763 |
| Mortgage brokers and lenders | 56 | #319 of 887 | 267 | 5.4 | Index only | 105 | 88 |
| Optometrists and eye care | 56 | #541 of 1,302 | 343 | 6.9 | $2.2M | 70 | 60 |
| Coffee shops and cafes | 55 | #805 of 2,063 | 544 | 11.0 | $4.8M | 128 | 576 |
| Chiropractors | 53 | #658 of 1,490 | 336 | 6.8 | $2.2M | 94 | 202 |
| HVAC and plumbing | 53 | #738 of 1,707 | 402 | 8.1 | $5M | 105 | 1,089 |
| Hair salons | 53 | #1,004 of 2,339 | 1,268 | 25.6 | $503K | 117 | 719 |
| Veterinarians | 52 | #688 of 1,485 | 180 | 3.6 | $2.4M | 88 | 165 |
| Pizza | 52 | #942 of 2,090 | 536 | 10.8 | $4.8M | 95 | 1,486 |
| Home repair trades | 51 | #979 of 2,057 | 811 | 16.4 | $2.5M | 102 | 2,034 |
| Grocery stores | 51 | #980 of 2,070 | 438 | 8.9 | $8.9M | 96 | 404 |
| Home inspectors | 50 | #199 of 415 | 55 | 1.1 | Index only | 76 | 46 |
| Car washes and detailing | 50 | #716 of 1,451 | 202 | 4.1 | $2.6M | 105 | 134 |
| Pet businesses | 49 | #1,135 of 2,200 | 576 | 11.7 | $750K | 85 | 381 |
| Pest control | 48 | #377 of 699 | 95 | 1.9 | $8.6M | 84 | 112 |
| Pet grooming and boarding | 48 | #780 of 1,461 | 203 | 4.1 | $2.1M | 84 | 144 |
| House cleaning | 47 | #478 of 847 | 134 | 2.7 | $6.1M | 95 | 548 |
| Primary care and pediatrics | 45 | #1,014 of 1,656 | 458 | 9.3 | $1.6M | 93 | 1,169 |
| Gyms, studios and classes | 45 | #1,301 of 2,088 | 1,188 | 24.0 | $610K | 92 | 601 |
| Restaurants and cafes | 45 | #1,398 of 2,405 | 7,008 | 141.7 | $369K | 100 | 3,479 |
| Gas stations | 45 | #1,399 of 2,358 | 631 | 12.8 | $1.8M | 77 | 477 |
| Electricians | 44 | #731 of 1,160 | 222 | 4.5 | $9.1M | 76 | 838 |
| Clothing and shoe stores | 44 | #1,266 of 2,087 | 1,253 | 25.3 | $1.2M | 92 | 652 |
| Fast food and sandwich shops | 44 | #1,377 of 2,222 | 1,019 | 20.6 | $2.5M | 83 | 1,486 |
| Sit-down restaurants | 44 | #1,465 of 2,405 | 3,940 | 79.7 | $656K | 99 | 1,393 |
| Martial arts and dance studios | 43 | #864 of 1,334 | 427 | 8.6 | $1.7M | 84 | 318 |
| Laundromats | 42 | #486 of 785 | 145 | 2.9 | $10.1M | 81 | 148 |
| Barbershops | 41 | #914 of 1,356 | 396 | 8.0 | $1.6M | 85 | 101 |
| Bakeries and dessert shops | 41 | #1,262 of 1,889 | 718 | 14.5 | $3.6M | 87 | 643 |
| Real estate agents and brokers | 41 | #1,534 of 2,176 | 2,012 | 40.7 | Index only | 100 | 756 |
| Dry cleaners | 40 | #351 of 507 | 105 | 2.1 | $14M | 89 | 188 |
| Dentists and orthodontists | 40 | #1,285 of 1,886 | 777 | 15.7 | $971K | 99 | 662 |
| Clothing, shoes and laundry | 40 | #1,516 of 2,210 | 1,800 | 36.4 | $814K | 93 | 988 |
| Real estate | 40 | #1,624 of 2,229 | 2,438 | 49.3 | Index only | 104 | 1,402 |
| Salons, barbers and spas | 39 | #1,778 of 2,385 | 3,063 | 62.0 | $208K | 98 | 1,544 |
| Yoga, Pilates and fitness studios | 38 | #592 of 777 | 251 | 5.1 | $2.9M | 71 | 283 |
| Spas and skin care | 37 | #1,363 of 1,769 | 818 | 16.5 | $780K | 89 | 273 |
| Auto repair and car care | 37 | #1,773 of 2,401 | 2,211 | 44.7 | $242K | 90 | 1,319 |
| Physical therapy | 35 | #1,113 of 1,422 | 465 | 9.4 | $1.6M | 68 | 420 |
| Landscaping and lawn care | 35 | #1,156 of 1,493 | 456 | 9.2 | $1.8M | 61 | 1,745 |
| Lawn, cleaning and pest control | 35 | #1,429 of 1,771 | 685 | 13.9 | $1.2M | 71 | 2,405 |
| Doctors, dentists and clinics | 35 | #1,900 of 2,394 | 5,856 | 118.4 | $129K | 85 | 2,568 |
| Nail salons | 34 | #1,070 of 1,328 | 527 | 10.7 | $1.2M | 72 | 434 |
| Auto repair shops | 32 | #1,945 of 2,378 | 1,479 | 29.9 | $361K | 81 | 1,045 |
| Pet stores | 31 | #768 of 974 | 147 | 3.0 | $2.9M | 65 | 72 |
| Collision repair and body shops | 29 | #1,128 of 1,327 | 284 | 5.7 | $1.9M | 61 | 285 |
| Insurance agencies | 23 | #2,007 of 2,272 | 953 | 19.3 | $939K | 75 | 797 |
Household spending in Suffolk County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $534.1M | $1,080 | 113 |
| Gasoline and other fuels | $1.2B | $2,336 | 90 |
| Food away from home | $2.6B | $5,231 | 129 |
| Groceries | $3.9B | $7,915 | 125 |
| Personal care products and services | $638.1M | $1,291 | 128 |
| Child care and other personal services | $460.7M | $932 | 160 |
| Memberships, classes and admissions | $724.3M | $1,465 | 149 |
| Medical and dental services | $754.8M | $1,527 | 119 |
| Pets | $432.1M | $874 | 96 |
| Clothing, shoes and related services | $1.5B | $2,965 | 144 |
| Vehicle insurance | $894.4M | $1,809 | 92 |
| Home repairs, maintenance and insurance | $2B | $4,071 | 135 |
| Lawn care, cleaning and other household services | $812.8M | $1,644 | 116 |
| Rent and homeowner costs | $11B | $22,220 | 133 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
Population and households in Suffolk County
- Population, 2025 estimate
- 1,546,090+1.6% since 2020
- Households
- 494,405
- Median age
- 42.5
- Homes lived in by their owners
- 82%
- Vehicles per household
- 2.0
- Land area
- 898 sq. mi.
- People per square mile
- 1,620
- Median household income
- $130,686+29.4% vs. 2015–2019, before inflation
- Average household income
- $167,491
- Median home value
- $578,400
- Jobs located here
- 624,016
- Daytime population
- 1,340,805Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Suffolk County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the competitors on map listings by name and distance, for any of the 56 business types.
Or open the report at the center of Suffolk County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
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- Bronx County, NY1,404,779 people
- New York County, NY1,629,477 people
- Kings County, NY2,631,580 people
- Putnam County, NY98,107 people
- Rockland County, NY341,883 people
Questions
How fast is Suffolk County, NY growing?
Population estimates put Suffolk County at 1,546,090 people in 2025, up 1.6% since 2020, slower than the U.S. (+3.1%). It has 494,405 households. Against the 2015–2019 survey, median household income rose 29.4%, before inflation.
How much do households in Suffolk County, NY spend?
Households in Suffolk County spend about $11B a year on rent and homeowner costs, $3.9B on groceries and $2.6B on food away from home. Relative to the U.S., household spending in Suffolk County runs highest on child care and other personal services (an index of 160, where 100 is the U.S. average) and lowest on gasoline and other fuels (90).
Which business types have the highest market scores in Suffolk County, NY?
Of the business types scored in Suffolk County, oil change and quick-lube shops (79), roofing and gutter companies (69) and funeral homes (68) have the highest Groundwork market scores. For oil change and quick-lube shops, that ranks #10 of 479 scored counties.
How does Suffolk County, NY compare with the U.S.?
Median household income in Suffolk County is $130,686, 62% above the U.S. median of $80,734. The population rose 1.6% from 2020 to 2025, against +3.1% for the U.S. The median home value is $578,400, against $332,700 for the U.S. Against the U.S., map listings per household run highest for yoga, Pilates and fitness studios (2.1 times the U.S. rate) and lowest for oil change and quick-lube shops (57% below the U.S. rate).
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. All 56 business types have a score in Suffolk County, each ranked against other counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Suffolk County. It maps the competitors on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
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Screening a site or an acquisition in Suffolk County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Suffolk County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.