California Lab Locations

Walk-In Lab provides access to routine lab testing throughout California through our national partners, LabCorp and Quest Diagnostics.

Use this page to find lab testing options in major cities across California. Simply select your city below to view nearby lab locations, testing availability, and next steps for completing your order.

How Lab Testing Works

Walk-In Lab sells routine lab tests that can be completed at LabCorp and Quest Diagnostics patient service centers throughout California.

Choose a City

Choose a city below to find labs near you

Purchase Your Test

Select and purchase your lab test online

Visit a Lab

Visit a participating lab location to complete your test

No insurance is required.

Do You Need an Appointment?

Appointments are optional but strongly recommended if you want to minimize wait times.

Labs are typically busiest in the morning, especially for fasting tests. Scheduling ahead can help you get in and out more quickly.

To schedule:

Select your preferred lab location on the city page
Click "Make Appointment" if available
Bring your lab order and appointment confirmation with you

Please note: Many Quest Diagnostics locations require appointments.

Important Information

Lab Network Rules

LabCorp orders must be completed at LabCorp locations
Quest Diagnostics orders must be completed at Quest locations
Visiting a non-participating facility such as a hospital or clinic may result in additional charges and delays

Home Test Kits

If you purchased a home test kit that requires a blood draw, you will need to visit a local hospital, clinic, or mobile phlebotomy service, as LabCorp and Quest locations do not perform these draws.
For more information: https://www.walkinlab.com/home-test-kits-require-blood-draw

Find a Lab Near You in California

Browse major cities in California to view available lab locations near you.

Or browse labs in your state:

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