NAICS 811111

General Automotive Repair in Antioch, CA

The 1 ZIP codes assigned to Antioch contained 17 Auto Repair establishments in 2023, of which 3 employed 10 or more people.

Establishments (2023)
17
1 ZIP codes
10 or more employees
3
Practical financing floor
Share of county
6%
Contra Costa County
City population
118,958
2025 estimate

Figures cover the ZIP codes the U.S. Postal Service assigns to Antioch (94509). 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 Antioch'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
1-4952.9%
5-9529.4%
10-19317.6%

How this market compares

Antioch 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.

Above average1.11% of local businesses, against 0.91% statewide

A larger slice of the local business base than the statewide share. Usually a sign of genuine local demand rather than oversupply.

Vs state share
+22%
Share of local businesses
Rank by count
#155
of 354 cities
Rank by share
#155
of 279 ranked
Since 2020
+6%
Change in establishments

This compares how much of Antioch’s business base is general automotive repair, against the California figure. Base: 1,538 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

Antioch 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 establishmentsAntiochCaliforniaDifference
Under 5 employeesOwner-operated, often no management layer52.9%65.8%-12.9%
5 to 49 employeesThe range most individual buyers target47.1%21.4%+25.6%
10 or more employeesPractical floor for acquisition financing17.6%2.5%+15.1%

Nearest comparable markets

The closest places to Antioch that also have Auto Repair 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
Brentwood26+102%
Oakley6n/a
Pittsburg16+66%
Concord50+55%
Walnut Creek32-12%

The wider Contra Costa County market

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

County establishments (2023)
265
Contra Costa County
County employees
3,387
Mid-March employment
County annual payroll
$255M
All establishments
Full Auto Repair data for Contra Costa County

What acquirers look at

Real estate frequently comes with the business, which transforms SBA financeability. Technician retention is the operational risk that sinks most first-time buyers.

Other industries in Antioch

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.