Home services · County · South Carolina
HVAC and plumbing companies in Dorchester County, SC
How Dorchester County, SC compares with other counties and the U.S. for HVAC and plumbing companies: competitors, household spending, official counts and growth.
Groundwork market score · out of 100
Score 69 out of 100: Upper middle
Ranked #239 of 1,707 scored counties
#5 of 31 scored counties in South Carolina
- Listings
- 36
- 0 chain locations (0%)
- Official establishments
- 60
- 0.0% since 2019
- Household spending a year
- $186.3M
- On home repairs, maintenance and insurance · $2,948 a household
- Spending per listing
- $5.2M
- 9% above the U.S.
- Listings per 10k households
- 5.7
- 10% below the U.S.
- Population, 2025
- 178,397
- +10.1% since 2020
See the HVAC and plumbing companies around any address in Dorchester County
The site report maps the HVAC and plumbing companies 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 Dorchester 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
Map listings as of September 2026 show 36 HVAC and plumbing companies in Dorchester County. None of them are chain locations, against 4% across the U.S. Per 10,000 households, that is 5.7, 10% below the U.S. rate of 6.3.
Household spending on home repairs, maintenance and insurance in Dorchester County comes to about $186.3M a year: $2,948 per household, 2% below the U.S. average. Spread across 36 HVAC and plumbing companies, that is $5.2M per company, 9% above the U.S. figure of $4.8M. That spending covers all home repairs, maintenance and insurance, which HVAC and plumbing companies share with other businesses in the trade.
The official count of businesses with payroll classed as plumbing, heating and air-conditioning contractors in Dorchester County was 60 in 2023, unchanged from 2019. That is one for every 1,053 households, against one for every 1,162 across the U.S. Since fiscal 2022, 2 SBA-backed loans worth $323K have gone to businesses classed as plumbing, heating and air-conditioning contractors in Dorchester County.
Between 2020 and 2025, the population of Dorchester County grew 10.1%, faster than the U.S. (+3.1%). The Groundwork market score for HVAC and plumbing companies in Dorchester County is 69 (upper middle), #239 of 1,707 scored counties and #5 of 31 scored counties in South Carolina. That puts it in the top quarter of counties.
How Dorchester County compares
The same measures for South Carolina and the whole U.S. Spending per listing divides a year of household spending on all home repairs, maintenance and insurance by the HVAC and plumbing companies counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Dorchester County | South Carolina | U.S. |
|---|---|---|---|
| Listings per 10k households | 5.7 | 6.7 | 6.3 |
| Spending per listing | $5.2M | $4.2M | $4.8M |
| Households per official establishment | 1,053 | 1,257 | 1,162 |
| Official establishment growth, 2019–2023 | 0.0% | +1.8% | +7.6% |
| Population growth, 2020–2025 | +10.1% | +8.5% | +3.1% |
| Spending per household on home repairs, maintenance and insurance | $2,948 | $2,802 | $3,018 |
| Median household income | $78,198 | $69,324 | $80,734 |
| Groundwork market score | 69 | 56 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 60 → 600.0% over the period
- Employees, 2023
- 277
- Annual payroll, 2023
- $12.1M
- One-person businesses, 2023
- Not publishedNot published for this business type
- Map listings, September 2026
- 360 chain locations
- Listings at the U.S. rate for this spending
- 39The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 2
- Amount
- $323K
SBA-backed loans to businesses classed as plumbing, heating and air-conditioning contractors in Dorchester 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 Dorchester County
- Population, 2025 estimate
- 178,397+10.1% since 2020
- Households
- 63,179
- Median age
- 38.4
- Homes lived in by their owners
- 76%
- Vehicles per household
- 1.9
- Land area
- 568 sq. mi.
- People per square mile
- 294
- Median household income
- $78,198+24.0% vs. 2015–2019, before inflation
- Average household income
- $100,220
- Median home value
- $329,300
- Jobs located here
- 39,777
- Daytime population
- 129,933Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Dorchester 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 HVAC and plumbing companies on map listings by name and distance.
Or open the report at the center of Dorchester County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardHVAC and plumbing across South Carolina
Every South Carolina market ranked →The highest-scoring counties in South Carolina for HVAC and plumbing companies, numbered among those based in South Carolina, with Dorchester County marked.
Top counties in South Carolina
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Lancaster County, SC | 83 | 20 | 5.0 | $6M | +18.3% | #41 of 1,707 |
| 2Kershaw County, SC | 81 | 11 | 4.1 | $6.7M | +11.6% | #54 of 1,707 |
| 3Aiken County, SC | 75 | 32 | 4.6 | $6.1M | +7.3% | #121 of 1,707 |
| 4Berkeley County, SC | 73 | 63 | 6.7 | $4.4M | +18.7% | #162 of 1,707 |
| 5Dorchester County, SC | 69 | 36 | 5.7 | $5.2M | +10.1% | #239 of 1,707 |
| 6Richland County, SC | 69 | 100 | 6.0 | $4.6M | +4.6% | #243 of 1,707 |
| 7Oconee County, SC | 66 | 18 | 5.2 | $5.2M | +6.3% | #304 of 1,707 |
| 8Beaufort County, SC | 66 | 56 | 6.8 | $4.7M | +8.9% | #312 of 1,707 |
| 9Pickens County, SC | 65 | 24 | 4.6 | $5.7M | +5.7% | #333 of 1,707 |
| 10Chesterfield County, SC | 64 | 7 | 4.0 | $5.9M | +3.4% | #359 of 1,707 |
Other business types in Dorchester County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
- Home repair trades74
- HVAC and plumbing69
- Electricians81
- Roofing and gutters81
- Lawn, cleaning and pest control61
- Landscaping and lawn care76
- House cleaning58
- Pest control49
Real estate
Funeral services
Questions
How many HVAC and plumbing companies are in Dorchester County, SC?
There are 36 HVAC and plumbing companies on map listings in Dorchester County as of September 2026. None of them are chain locations. The listings count heating and air-conditioning companies and plumbers. Official counts show 60 businesses with payroll classed as plumbing, heating and air-conditioning contractors in 2023, unchanged from 2019.
How much do households in Dorchester County, SC spend on home repairs, maintenance and insurance?
About $186.3M a year, or $2,948 per household. That is 2% below the U.S. average (an index of 98, where 100 is the U.S. average). Spread across the 36 HVAC and plumbing companies on map listings, it comes to $5.2M per company. The spending figure covers all home repairs, maintenance and insurance, not only HVAC and plumbing companies. It is estimated from the incomes of the 63,179 households in Dorchester County and national spending patterns by income.
How does Dorchester County, SC compare with the U.S. for HVAC and plumbing companies?
Dorchester County has 5.7 HVAC and plumbing companies per 10,000 households, 10% below the U.S. rate of 6.3. Spending per company is $5.2M, 9% above the U.S. figure of $4.8M. At the national ratio of HVAC and plumbing companies to household spending, Dorchester County would have about 39, against 36 on map listings. There is one business with payroll in the industry for every 1,053 households, against one for every 1,162 across the U.S. The official count held level from 2019 to 2023, against +7.6% for the U.S.
How fast is Dorchester County, SC growing?
Population estimates put Dorchester County at 178,397 people in 2025, up 10.1% since 2020, faster than the U.S. (+3.1%). It has 63,179 households. The median household income in Dorchester County is $78,198 a year, 3% below the U.S. median of $80,734. That rose 24.0% 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. Dorchester County scores 69 for HVAC and plumbing companies (upper middle), #239 of 1,707 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Dorchester County. It maps the HVAC and plumbing companies 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 HVAC and plumbing companies · All 56 business types in Dorchester County
Screening a site or an acquisition in Dorchester 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 Dorchester 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.