NAICS 621320 · California overview
Optometry Practices in San Mateo County
San Mateo County had 47 Optometry establishments in 2023, ranking 12 of 41 California counties and accounting for 1.7% of the statewide total.
- Establishments (2023)
- 47
- Rank 12 of 41 counties
- Employees
- 286
- Mid-March employment
- Annual payroll
- $12M
- All establishments
- Per 10k residents
- 0.6
- 743,568 residents
More recent reading
BLS QCEW, 2026Q1The figures above are County Business Patterns, which carries the size distribution but runs about two years behind. The Bureau of Labor Statistics publishes quarterly, so this is the same industry roughly 3 years later. The two count different universes, Census counts establishments with paid employees in the March pay period and BLS counts worksites covered by unemployment insurance during the quarter, so the numbers are not directly comparable and either can be the larger.
- Establishments
- 53
- 2026Q1
- Employment
- 339
- Quarter-end level
- Average weekly wage
- $1,035
- Per covered worker
- Quarterly trend
- +3.9%
- 2025Q2 to 2026Q1
0.82 location quotient. Optometry is about as concentrated in San Mateo County as it is nationally.
Computed by the Bureau of Labor Statistics, not derived here. Above 1.0 means the industry is a larger share of local employment than of national employment.
Establishments by size
Employee-count distribution for Optometry in San Mateo County. 5 of 47 establishments (11%) employ 10 or more people, the practical floor for most acquisition financing.
| Employees | Establishments | Share | Distribution |
|---|---|---|---|
| 1-4 | 27 | 57.4% | |
| 5-9 | 14 | 29.8% | |
| 10-19 | 5 | 10.6% |
Establishment trend
Year-over-year establishment counts, County Business Patterns. Net decline of 11.3% since 2020.
| Year | Establishments | Change |
|---|---|---|
| 2020 | 53 | n/a |
| 2021 | 52 | -1 |
| 2022 | 54 | +2 |
| 2023 | 47 | -7 |
How this market compares
San Mateo County against every other county in California on the same measure. The median excludes places under 2,000 residents, where per-capita figures are arithmetically true but analytically useless.
Close to the state median for this industry. Provision is roughly what the population would predict.
- Vs state median
- +8%
- Businesses per resident
- Rank by count
- #12
- of 41 counties
- Rank by density
- #17
- of 41 ranked
- Since 2020
- -11%
- Change in establishments
Density compares optometry practices provision per resident. It does not measure revenue, profitability or whether a market is worth entering.
Business size mix
San Mateo 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 | San Mateo | California | Difference |
|---|---|---|---|
| Under 5 employeesOwner-operated, often no management layer | 57.4% | 49.3% | +8.2% |
| 5 to 49 employeesThe range most individual buyers target | 40.4% | 47.9% | -7.5% |
| 10 or more employeesPractical floor for acquisition financing | 10.6% | 14.2% | -3.6% |
What acquirers look at
Blends licensed professional services with high-margin retail optical. Retail revenue is transferable to a non-licensed owner in a way the clinical side is not.
Cities in San Mateo
The figures above cover the county as a whole. These are the places within it.
Other industries in San Mateo
Sources
- 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.