NAICS 541110

Law Offices in Millbrae, CA

The 1 ZIP codes assigned to Millbrae contained 6 Law Firm establishments in 2023.

Establishments (2023)
6
1 ZIP codes
10 or more employees
n/a
Practical financing floor
Share of county
2%
San Mateo County
City population
22,869
2025 estimate

Figures cover the ZIP codes the U.S. Postal Service assigns to Millbrae (94030). 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 Millbrae'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
1-4466.7%

How this market compares

Millbrae 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.

Thinly served1.11% of local businesses, against 2.18% statewide

A far smaller slice of the local business base than the statewide share. Either a genuine gap in provision or a market served from somewhere nearby. Worth checking the neighbouring places below before drawing a conclusion.

Vs state share
-49%
Share of local businesses
Rank by count
#250
of 307 cities
Rank by share
#164
of 277 ranked
Since 2020
-14%
Change in establishments

This compares how much of Millbrae’s business base is law offices, against the California figure. Base: 539 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

Millbrae tracks the California size distribution closely.

Share of establishmentsMillbraeCaliforniaDifference
Under 5 employeesOwner-operated, often no management layer66.7%71.3%-4.6%
5 to 49 employeesThe range most individual buyers target0.0%22.1%-22.1%
10 or more employeesPractical floor for acquisition financing0.0%11.0%-11.0%

Nearest comparable markets

The closest places to Millbrae that also have Law Firm 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
Burlingame48+0%
San Bruno7-68%
South San Francisco17-66%
Pacifica5-64%
San Mateo86-9%

The wider San Mateo County market

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

County establishments (2023)
358
San Mateo County
County employees
3,568
Mid-March employment
County annual payroll
$678M
All establishments
Full Law Firm data for San Mateo County

What acquirers look at

Ownership is restricted to licensed attorneys in California. Relevant to the index as a succession signal and a referral source rather than as an acquisition target.

Other industries in Millbrae

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.