Groundwork

Health care · County · New York

Primary care and pediatric clinics in Nassau County, NY

The primary care and pediatric clinics in Nassau County, NY, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 37 out of 100: Lower middle

Ranked #1,234 of 1,656 scored counties
#52 of 53 scored counties in New York

Listings
555
25 chain locations (5%)
Official establishments
1,666
−12.2% since 2019
Household spending a year
$739.1M
On medical and dental services · $1,613 a household
Spending per listing
$1.3M
25% below the U.S.
Listings per 10k households
12.1
68% above the U.S.
Population, 2025
1,398,939
+0.6% since 2020

See the primary care and pediatric clinics around any address in Nassau County

The site report maps the primary care and pediatric clinics on map listings near the address, by name and distance, and sizes the households and spending around it. Or open the report at the center of Nassau County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

As of September 2026, map listings count 555 primary care and pediatric clinics in Nassau County. Chain locations make up 5% of them, against 9% across the U.S. That is 12.1 per 10,000 households, 68% above the U.S. rate of 7.2.

Households in Nassau County spend about $739.1M a year on medical and dental services, or $1,613 per household, 25% above the U.S. average. That is about $1.3M of household spending for each clinic on map listings, 25% below the U.S. figure of $1.8M. That spending covers all medical and dental services, which primary care and pediatric clinics share with other businesses in the trade.

In 2023, official counts showed 1,666 businesses with payroll in Nassau County classed as offices of physicians, down 12.2% from 2019. That is one for every 275 households, against one for every 593 across the U.S. Official counts also show 2,486 one-person businesses without payroll. Since fiscal 2022, 27 SBA-backed loans worth $15.6M have gone to businesses classed as offices of physicians in Nassau County.

Population estimates put the population change in Nassau County from 2020 to 2025 at +0.6%, slower than the U.S. (+3.1%). The Groundwork market score for primary care and pediatric clinics in Nassau County is 37 (lower middle), #1,234 of 1,656 scored counties and #52 of 53 scored counties in New York.

How Nassau County compares

The same measures for New York and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the primary care and pediatric clinics counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Primary care and pediatrics in Nassau County, NY compared with New York and the U.S.
MeasureNassau CountyNew YorkU.S.
Listings per 10k households12.16.47.2
Spending per listing$1.3M$2M$1.8M
Households per official establishment275576593
Official establishment growth, 2019–2023−12.2%−10.5%−2.2%
Population growth, 2020–2025+0.6%−0.6%+3.1%
Spending per household on medical and dental services$1,613$1,278$1,288
Median household income$146,202$85,974$80,734
Groundwork market score3736

Official counts and lending

Businesses

Official establishments, 2019 to 2023
1,897 → 1,666−12.2% over the period
Employees, 2023
16,417
Annual payroll, 2023
$1.5B
One-person businesses, 2023
2,486Businesses with no payroll
Map listings, September 2026
55525 chain locations
Listings at the U.S. rate for this spending
415The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
27
Amount
$15.6M

SBA-backed loans to businesses classed as offices of physicians in Nassau County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.

Population and households in Nassau County

Population, 2025 estimate
1,398,939+0.6% since 2020
Households
458,166
Median age
42.4
Homes lived in by their owners
82%
Vehicles per household
1.9
Land area
285 sq. mi.
People per square mile
4,884
Median household income
$146,202+25.9% vs. 2015–2019, before inflation
Average household income
$191,703
Median home value
$684,700
Jobs located here
639,475
Daytime population
1,328,680Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Nassau 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 primary care and pediatric clinics on map listings by name and distance.

Or open the report at the center of Nassau County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

Primary care and pediatrics across New York

Every New York market ranked →

The highest-scoring counties in New York for primary care and pediatric clinics, numbered among those based in New York, with Nassau County marked.

Top counties in New York

Counties in New York ranked for primary care and pediatric clinics by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Otsego County, NY7683.4$3.2M+3.8%#132 of 1,656
2Oswego County, NY72153.2$3.5M+1.0%#209 of 1,656
3Putnam County, NY70102.8$5.3M+1.4%#250 of 1,656
4Wayne County, NY70143.6$3.1M+0.1%#257 of 1,656
5Ontario County, NY69183.7$3.2M+0.6%#270 of 1,656
6Sullivan County, NY69165.1$2.3M+2.7%#286 of 1,656
7Washington County, NY6862.5$4.5M−2.9%#291 of 1,656
8Schenectady County, NY68304.5$2.7M+3.0%#301 of 1,656
9Franklin County, NY6752.6$4.1M−1.6%#310 of 1,656
10Steuben County, NY65133.3$3.3M−1.6%#362 of 1,656
52Nassau County, NY3755512.1$1.3M+0.6%#1,234 of 1,656

Other business types in Nassau County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many primary care and pediatric clinics are in Nassau County, NY?

Nassau County has 555 primary care and pediatric clinics on map listings as of September 2026. 25 of them (5%) are chain locations. The listings count primary care, family medicine and pediatric clinics. Official counts show 1,666 businesses with payroll classed as offices of physicians in 2023, down 12.2% from 2019. Another 2,486 one-person businesses have no payroll, by official counts.

How much do households in Nassau County, NY spend on medical and dental services?

About $739.1M a year, or $1,613 per household. That is 25% above the U.S. average (an index of 125, where 100 is the U.S. average). Spread across the 555 primary care and pediatric clinics on map listings, it comes to $1.3M per clinic. The spending figure covers all medical and dental services, not only primary care and pediatric clinics. It is estimated from the incomes of the 458,166 households in Nassau County and national spending patterns by income.

How does Nassau County, NY compare with the U.S. for primary care and pediatric clinics?

Nassau County has 12.1 primary care and pediatric clinics per 10,000 households, 68% above the U.S. rate of 7.2. Spending per clinic is $1.3M, 25% below the U.S. figure of $1.8M. At the national ratio of primary care and pediatric clinics to household spending, Nassau County would have about 415, against 555 on map listings. There is one business with payroll in the industry for every 275 households, against one for every 593 across the U.S. The official count fell 12.2% from 2019 to 2023, against −2.2% for the U.S.

How fast is Nassau County, NY growing?

Population estimates put Nassau County at 1,398,939 people in 2025, up 0.6% since 2020, slower than the U.S. (+3.1%). It has 458,166 households. The median household income in Nassau County is $146,202 a year, 81% above the U.S. median of $80,734. That rose 25.9% from the 2015–2019 survey, before inflation.

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. Nassau County scores 37 for primary care and pediatric clinics (lower middle), #1,234 of 1,656 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Nassau County. It maps the primary care and pediatric clinics 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.

How the score works · Top markets for primary care and pediatric clinics · All 56 business types in Nassau County

Screening a site or an acquisition in Nassau 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 Nassau 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.