NAICS 238910
Septic & Water Well Services in Calistoga, CA
The 1 ZIP codes assigned to Calistoga contained 6 Septic & Well establishments in 2023.
- Establishments (2023)
- 6
- 1 ZIP codes
- 10 or more employees
- n/a
- Practical financing floor
- Share of county
- 22%
- Napa County
- City population
- 4,954
- 2025 estimate
Figures cover the ZIP codes the U.S. Postal Service assigns to Calistoga (94515). ZIP areas are not municipal boundaries: they can extend beyond city limits and are shared between neighbouring places. This is a count of establishments in Calistoga's ZIP codes, not a count of businesses inside its city limits.
Establishments by size
Employee-count distribution. For most buyers the businesses worth pursuing sit in the 5 to 49 range: large enough to have a manager and real systems, small enough to be owner-operated.
| Employees | Establishments | Share | Distribution |
|---|---|---|---|
| 1-4 | 3 | 50.0% |
Business size mix
Calistoga is more fragmented than California as a whole: a larger share of very small operators. Fragmented markets are where roll-ups are assembled, and where an owner nearing retirement has no obvious internal buyer.
| Share of establishments | Calistoga | California | Difference |
|---|---|---|---|
| Under 5 employeesOwner-operated, often no management layer | 50.0% | 35.1% | +14.9% |
| 5 to 49 employeesThe range most individual buyers target | 0.0% | 9.4% | -9.4% |
| 10 or more employeesPractical floor for acquisition financing | 0.0% | 6.3% | -6.3% |
Nearest comparable markets
The closest places to Calistoga that also have Septic & Well establishments on record. Useful for spotting a gap next door, or realising the market you are looking at is already served from the town over.
| Market | Establishments | Vs state share |
|---|---|---|
| Santa Rosa | 39 | +238% |
| Windsor | 4 | +222% |
| Healdsburg | 7 | +387% |
| Rohnert Park | 3 | +75% |
| Sebastopol | 8 | +330% |
The wider Napa County market
Employment and payroll are reported at county level only, so the figures below describe the county Calistoga sits in.
- County establishments (2023)
- 27
- Napa County
- County employees
- 244
- Mid-March employment
- County annual payroll
- $23M
- All establishments
What acquirers look at
Regulated, permit-gated and essentially recession-proof in rural markets. Very high owner age and almost no institutional competition for deals.
Other industries in Calistoga
Nearby cities
Sources
- U.S. Census Bureau, 2023 ZIP Code Business Patterns. Establishment counts and size distribution by ZIP code and NAICS, aggregated over the ZIP codes assigned to each city. Retrieved 2026-09-08.
- U.S. Census Bureau, 2023 County Business Patterns. Establishment counts, employment and annual payroll by NAICS. Retrieved 2026-09-08.
- U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (2026Q1). Quarterly establishment counts and employment for employers covered by unemployment insurance. Retrieved 2026-09-08.