Port Costa, California
Port Costa: Situated along the southern shore of the Carquinez Strait at an elevation of 16 feet, this small unincorporated community in Contra Costa County is nestled between steep hills and the water.
About
Port Costa is a city located in the county of Contra Costa in the U.S. state of California.
Quick Facts about Port Costa
| State | California (United States) |
| County | Contra Costa County |
| Latitude & Longitude | 38.0463,-122.1833 |
| Time Zone | America/Los_Angeles |
| Local time | 17:50:06 (8th November 2026) |
| Postal code | 94569 |
| Weather | 47℉ Mostly Clear 7-days weather |
Geography
Port Costa is located at 38°2'47"N 122°10'60"W (38.0463100, -122.1833000).
Port Costa map
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Weather
Mostly clear, with a low around 47. West wind around 1 mph.
7-Day ForecastWhere to Stay in Port Costa
1The Burlington Hotel
2 Canyon Lake Dr, Port Costa, CA 94569, United States View details
Nearby Schools and Colleges
Schools and campuses linked to Port Costa, CA. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 111188 | California State University Maritime Academy | Vallejo (CA) | 94590-8181 |
Nearby Transit Stations (48)
Rail and bus stations connected to Port Costa, CA. Select a station to open its map and address details.
| Code | Name | Address | Type |
|---|---|---|---|
| MTZ | Martinez station | 601 Marina Vista Ave. | RAIL |
| VMW | Marine World (Seasonal), Vallejo, California | Highway 37 and Fairgrounds Drive | BUS |
| VAL | Vallejo, California | 4355 Sonoma Blvd. | BUS |
| RIC | Richmond station | 1700 Nevin Avenue | RAIL |
| BKY | Berkeley station | University Ave. and Third St. | RAIL |
Closest post offices linked to Port Costa.
| Post Office Name | City | ZIP |
|---|---|---|
| Port Costa Post Office | Port Costa (CA) | 94569 |
Other cities in Contra Costa County
Cities, towns, neighborhoods & other populated places in Contra Costa County , CA. (more)
| City Name | Population | Title |
|---|---|---|
| Concord | 128,544 | The third most populous city in Contra Costa County, California. |
| Antioch | 111,605 | The most populous city in Contra Costa County, California. |
| Richmond | 110,038 | The most populous city in Contra Costa County, California. |
| San Ramon | 82,865 | A city in Contra Costa County, California. |
| Pittsburg | 72,622 | A city in Contra Costa County, California. |
| Walnut Creek | 69,936 | The fifth most populous city in Contra Costa County, California. |
| Brentwood | 65,017 | The most populous city in Contra Costa County, California. |
| Danville | 44,883 | Town in Contra Costa County, California |
| Oakley | 42,710 | A city in Contra Costa County, California. |
| Martinez | 38,027 | City in Contra Costa County, California, USA |
| Pleasant Hill | 34,781 | City in Contra Costa County, California, USA |
| San Pablo | 30,779 | City in Contra Costa County, California, United States |
| Hercules | 26,221 | City in western Contra Costa County, California |
| Lafayette | 25,992 | City in California |
| El Cerrito | 25,403 | City in Contra Costa County, California, United States |
| Bay Point | 21,534 | Census designated place in California |