NAICS 621111 · California overview

Physician Practices in San Joaquin County

San Joaquin County had 318 Medical Practice establishments in 2023, ranking 17 of 54 California counties and accounting for 1.1% of the statewide total.

Establishments (2023)
318
Rank 17 of 54 counties
Employees
2,778
Mid-March employment
Annual payroll
$261M
All establishments
Per 10k residents
3.9
823,815 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
389
2026Q1
Employment
4,199
Quarter-end level
Average weekly wage
$2,200
Per covered worker
Quarterly trend
+2.1%
2025Q2 to 2026Q1
Concentration vs the national averageBLS, 2026Q1

0.78 location quotient. Medical Practice employment in San Joaquin County is about 1.3 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 San Joaquin County. 77 of 318 establishments (24%) employ 10 or more people, the practical floor for most acquisition financing.

EmployeesEstablishmentsShareDistribution
1-415950.0%
5-98025.2%
10-194714.8%
20-49247.5%
50-9961.9%

Establishment trend

Year-over-year establishment counts, County Business Patterns. Net decline of 10.4% since 2020.

YearEstablishmentsChange
2020355n/a
2021325-30
2022320-5
2023318-2

How this market compares

San Joaquin 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.

Below average3.9 per 10,000 residents, against a state median of 5.4

Fewer businesses per resident than the typical California market. Often an underserved market, though it can also mean residents buy this service in a neighbouring town.

Vs state median
-29%
Businesses per resident
Rank by count
#17
of 54 counties
Rank by density
#42
of 54 ranked
Since 2020
-10%
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

San Joaquin is more consolidated than California as a whole: fewer micro-operators and a larger share of businesses with real headcount. Fewer targets, but the ones that exist are more likely to be financeable.

Share of establishmentsSan JoaquinCaliforniaDifference
Under 5 employeesOwner-operated, often no management layer50.0%66.9%-16.9%
5 to 49 employeesThe range most individual buyers target47.5%31.0%+16.5%
10 or more employeesPractical floor for acquisition financing24.2%16.6%+7.6%

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.

Cities in San Joaquin

The figures above cover the county as a whole. These are the places within it.

Other industries in San Joaquin

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.