Septic businesses in California
As of October 29, 2026, DealFlow OS tracks 264 septic service businesses in California, compared with 276 establishments with paid employees in the U.S. Census Bureau's 2022 County Business Patterns.
Updated
Septic businesses
264
With a website
81%
With a phone number
100%
Build the California septic list
Open the Deal Finder with Septic and California prefilled — same 264 count, phone and website on every row.
Top cities
- 1.Hesperia5
- 2.Modesto5
- 3.Riverside5
- 4.Santa Rosa5
- 5.Bakersfield4
- 6.Fresno4
- 7.Sacramento4
- 8.Stockton4
Compared with the Census
- DealFlow OS (October 29, 2026)
- 264
- Census CBP 2022 (NAICS 562991)
- 276
NAICS 562991: Septic tank and related services.
Source: U.S. Census Bureau, County Business Patterns 2022 — excludes sole proprietors (non-employer businesses).
Frequently asked questions
How many septic service businesses are there in California?
As of October 29, 2026, DealFlow OS tracks 264 septic service businesses in California, compared with 276 establishments with paid employees in the U.S. Census Bureau's 2022 County Business Patterns. Source: U.S. Census Bureau, County Business Patterns 2022 — excludes sole proprietors (non-employer businesses).
What share of septic service businesses in California have a website or phone number?
81% of the 264 septic service businesses DealFlow OS tracks in California list a website and 100% list a phone number.
Which cities in California have the most septic service businesses?
Hesperia (5), Modesto (5), Riverside (5) lead the state.
Why is the DealFlow OS count different from the Census number?
County Business Patterns counts establishments with paid employees and excludes sole proprietors (non-employer businesses). DealFlow OS counts septic service businesses found in public business listings, including owner-operators without employees.
How do I get a list of septic service businesses in California?
Open the Deal Finder with Septic and California prefilled to see the same 264 count, preview the rows, and export the list with phone numbers and websites.
Septic in other states
Other industries in California
Thinking about buying one? How to acquire a septic service business · Septic by state