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Information About Port Costa, CA

Use the interactive Port Costa, California road map to explore the city.

Current Time and Weather

Below is the current time and weather for this city, click on the flag for a weather forecast.

Note: This city observes Daylight Savings Time, adjust time accordingly.

Click for Port Costa, California Forecast

Zipcodes in Port Costa

Below is a list of zipcodes that can be found in Port Costa, California. Select a zip code to view a road map of that area of the city.