Groundwork

Health care · County · Delaware

Physical therapy clinics in Sussex County, DE

Competitor counts, household spending and official business counts for physical therapy clinics in Sussex County, DE, set against other counties and the U.S.

Groundwork market score · out of 100

Score 35 out of 100: Lower middle

Ranked #1,116 of 1,422 scored counties
#2 of 3 scored counties in Delaware

Listings
92
40 chain locations (43%)
Official establishments
63
+14.6% since 2019
Household spending a year
$124.3M
On medical and dental services · $1,167 a household
Spending per listing
$1.4M
44% below the U.S.
Listings per 10k households
8.6
59% above the U.S.
Population, 2025
277,140
+16.1% since 2020

See the physical therapy clinics around any address in Sussex County

The site report maps the physical therapy 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 Sussex County. Signed out, you see a blurred preview; on an account, each report is one action.

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

What this means

Sussex County scores 35 (lower middle) on the Groundwork market score for physical therapy clinics, ranking #1,116 of 1,422 scored counties and #2 of 3 scored counties in Delaware. That puts it in the bottom quarter of counties.

At $1,167 per household (9% below the U.S. average), households in Sussex County spend about $124.3M a year on medical and dental services. Spread across 92 physical therapy clinics, that is $1.4M per clinic, 44% below the U.S. figure of $2.4M. The spending figure covers all medical and dental services, not only physical therapy clinics.

There are 92 physical therapy clinics on map listings in Sussex County as of September 2026. Of those, 40 are chain locations, or 43%, against 23% across the U.S. That is 8.6 per 10,000 households, 59% above the U.S. rate of 5.4.

The official count of businesses with payroll classed as physical, occupational and speech therapists in Sussex County was 63 in 2023, up 14.6% from 2019. That is one for every 1,690 households, against one for every 2,482 across the U.S. Since fiscal 2022, 4 SBA-backed loans worth $1.8M have gone to businesses classed as physical, occupational and speech therapists in Sussex County. Between 2020 and 2025, the population of Sussex County grew 16.1%, faster than the U.S. (+3.1%).

How Sussex County compares

The same measures for Delaware and the whole U.S. Spending per listing divides a year of household spending on all medical and dental services by the physical therapy 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.

Physical therapy in Sussex County, DE compared with Delaware and the U.S.
MeasureSussex CountyDelawareU.S.
Listings per 10k households8.67.35.4
Spending per listing$1.4M$1.6M$2.4M
Households per official establishment1,6901,8962,482
Official establishment growth, 2019–2023+14.6%+15.2%+23.1%
Population growth, 2020–2025+16.1%+6.9%+3.1%
Spending per household on medical and dental services$1,167$1,194$1,288
Median household income$81,497$84,954$80,734
Groundwork market score3529

Official counts and lending

Businesses

Official establishments, 2019 to 2023
55 → 63+14.6% over the period
Employees, 2023
395
Annual payroll, 2023
$20.2M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
9240 chain locations
Listings at the U.S. rate for this spending
52The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
4
Amount
$1.8M

SBA-backed loans to businesses classed as physical, occupational and speech therapists in Sussex 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 Sussex County

Population, 2025 estimate
277,140+16.1% since 2020
Households
106,441
Median age
49.6
Homes lived in by their owners
82%
Vehicles per household
1.9
Land area
936 sq. mi.
People per square mile
273
Median household income
$81,497+29.0% vs. 2015–2019, before inflation
Average household income
$109,287
Median home value
$382,600
Jobs located here
85,870
Daytime population
239,628Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Sussex 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 physical therapy clinics on map listings by name and distance.

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

Free10 actions over 3 days, no card

Physical therapy across Delaware

Every Delaware market ranked →

The highest-scoring counties in Delaware for physical therapy clinics, numbered among those based in Delaware, with Sussex County marked.

Top counties in Delaware

Counties in Delaware ranked for physical therapy clinics by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1New Castle County, DE401456.5$1.9M+3.0%#989 of 1,422
2Sussex County, DE35928.6$1.4M+16.1%#1,116 of 1,422
3Kent County, DE33567.8$1.4M+6.8%#1,158 of 1,422

Other business types in Sussex County

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

Questions

How many physical therapy clinics are in Sussex County, DE?

As of September 2026, map listings count 92 physical therapy clinics in Sussex County. 40 of them (43%) are chain locations. The listings count physical therapy and rehabilitation clinics. Official counts show 63 businesses with payroll classed as physical, occupational and speech therapists in 2023, up 14.6% from 2019.

How much do households in Sussex County, DE spend on medical and dental services?

About $124.3M a year, or $1,167 per household. That is 9% below the U.S. average (an index of 91, where 100 is the U.S. average). Spread across the 92 physical therapy clinics on map listings, it comes to $1.4M per clinic. That spending covers all medical and dental services, which physical therapy clinics share with other businesses in the trade. It is estimated from the incomes of the 106,441 households in Sussex County and national spending patterns by income.

How does Sussex County, DE compare with the U.S. for physical therapy clinics?

Sussex County has 8.6 physical therapy clinics per 10,000 households, 59% above the U.S. rate of 5.4. Spending per clinic is $1.4M, 44% below the U.S. figure of $2.4M. At the U.S. ratio of physical therapy clinics to household spending, Sussex County would have about 52, against 92 on map listings. There is one business with payroll in the industry for every 1,690 households, against one for every 2,482 across the U.S. The official count rose 14.6% from 2019 to 2023, against +23.1% for the U.S.

How fast is Sussex County, DE growing?

Population estimates put Sussex County at 277,140 people in 2025, up 16.1% since 2020, faster than the U.S. (+3.1%). It has 106,441 households. Median household income in Sussex County is $81,497, in line with the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 29.0%, 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. Sussex County scores 35 for physical therapy clinics (lower middle), #1,116 of 1,422 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Sussex County. It maps the physical therapy 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 physical therapy clinics · All 56 business types in Sussex County

Screening a site or an acquisition in Sussex 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 Sussex 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.