NAICS 621111 · California overview

Physician Practices in Mariposa County

Mariposa County had 9 Medical Practice establishments in 2023, ranking 50 of 54 California counties and accounting for 0.0% of the statewide total.

Establishments (2023)
9
Rank 50 of 54 counties
Employees
12
Mid-March employment
Annual payroll
$1.2M
All establishments
Per 10k residents
5.3
16,918 residents

More recent reading

BLS QCEW, 2026Q1

The 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
3
2026Q1
Employment
n/a
Quarter-end level
Average weekly wage
n/a
Per covered worker
Quarterly trend
0.0%
2025Q2 to 2026Q1
Concentration vs the national averageBLS, 2026Q1

0.24 location quotient. Medical Practice employment in Mariposa County is about 4.2 times less concentrated than in the United States as a whole.

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 Medical Practice in Mariposa County.

EmployeesEstablishmentsShareDistribution
1-4888.9%

Establishment trend

Year-over-year establishment counts, County Business Patterns. Net growth of 50.0% since 2020.

YearEstablishmentsChange
20206n/a
20215-1
20227+2
20239+2

How this market compares

Mariposa 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.

Typical5.3 per 10,000 residents, against a state median of 5.4

Close to the state median for this industry. Provision is roughly what the population would predict.

Vs state median
-2%
Businesses per resident
Rank by count
#50
of 54 counties
Rank by density
#30
of 54 ranked
Since 2020
+50%
Change in establishments

Density compares physician practices provision per resident. It does not measure revenue, profitability or whether a market is worth entering.

Business size mix

Mariposa 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 establishmentsMariposaCaliforniaDifference
Under 5 employeesOwner-operated, often no management layer88.9%66.9%+22.0%
5 to 49 employeesThe range most individual buyers target0.0%31.0%-31.0%
10 or more employeesPractical floor for acquisition financing0.0%16.6%-16.6%

What acquirers look at

California’s corporate practice of medicine doctrine restricts lay ownership, so deals are structured as MSO arrangements. Not a first acquisition for an unlicensed buyer.

Other industries in Mariposa

Sources

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