In California, the average hourly wage for a mail carrier is approximately $23.28, which translates to an annual salary that can vary significantly based on the number of hours worked and overtime. Additionally, mail carriers in California can earn an average of $6,862 in overtime pay each year, which can substantially increase their overall earnings. This data is based on 79 salary reports collected from job postings on Indeed over the past 36 months, with the latest update being on June 26, 2025. It is important to note that salaries can differ based on factors such as location within California, years of experience, and specific job responsibilities. Overall, a career as a mail carrier in California can provide a stable income, especially when considering the potential for overtime pay.