NAICS 621210

Dental Practices in Rancho Cucamonga, CA

The 4 ZIP codes assigned to Rancho Cucamonga contained 126 Dental establishments in 2023, of which 22 employed 10 or more people.

Establishments (2023)
126
4 ZIP codes
10 or more employees
22
Practical financing floor
Share of county
13%
San Bernardino County
City population
177,856
2025 estimate

Figures cover the ZIP codes the U.S. Postal Service assigns to Rancho Cucamonga (91701, 91730, 91737, 91739). 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 Rancho Cucamonga'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.

EmployeesEstablishmentsShareDistribution
1-45946.8%
5-94132.5%
10-192217.5%

How this market compares

Rancho Cucamonga against every other city in California on the same measure. City figures cover the ZIP codes assigned to the place rather than its municipal boundary, so they are compared as a share of the businesses in those same ZIP codes rather than per resident. Cities with fewer than 500 businesses in total are left unranked.

Typical2.36% of local businesses, against 2.19% statewide

About the same slice of the local business base as the industry holds statewide.

Vs state share
+8%
Share of local businesses
Rank by count
#32
of 368 cities
Rank by share
#138
of 298 ranked
Since 2020
+5%
Change in establishments

This compares how much of Rancho Cucamonga’s business base is dental practices, against the California figure. Base: 5,340 establishments across all industries in the same ZIP codes, 2023. It does not measure revenue, profitability or whether a market is worth entering.

Business size mix

Rancho Cucamonga tracks the California size distribution closely.

Share of establishmentsRancho CucamongaCaliforniaDifference
Under 5 employeesOwner-operated, often no management layer46.8%44.4%+2.4%
5 to 49 employeesThe range most individual buyers target50.0%49.5%+0.5%
10 or more employeesPractical floor for acquisition financing17.5%15.7%+1.8%

Nearest comparable markets

The closest places to Rancho Cucamonga that also have Dental 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.

MarketEstablishmentsVs state share
Upland73+28%
Fontana59-25%
Ontario68-43%
Claremont36+51%
Montclair18-19%

The wider San Bernardino County market

Employment and payroll are reported at county level only, so the figures below describe the county Rancho Cucamonga sits in.

County establishments (2023)
963
San Bernardino County
County employees
6,183
Mid-March employment
County annual payroll
$318M
All establishments
Full Dental data for San Bernardino County

What acquirers look at

Requires a licensed practitioner or a compliant DSO structure. California restricts corporate practice of dentistry. Recurring hygiene revenue is the valuation anchor.

Other industries in Rancho Cucamonga

Nearby cities

Sources

  1. 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.
  2. U.S. Census Bureau, 2023 County Business Patterns. Establishment counts, employment and annual payroll by NAICS. Retrieved 2026-09-08.
  3. 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.