There is one unique ZIP code in San Lorenzo, California and it is 94580. Area code: 341/510.
1
ZIP codes
3.32
sq mi land
0.00
sq mi water
341/510
area code
San Lorenzo, CA ZIP code map
About San Lorenzo, CA
San Lorenzo, California, is a small yet vibrant community located in Alameda County. Known for its suburban charm, this city offers residents a peaceful atmosphere complemented by convenient access to urban amenities. The city is characterized by tree-lined streets, parks, and a close-knit community spirit.
Location & geography
San Lorenzo is situated in the eastern part of Alameda County, bordered by the city of Hayward to the south and west and the community of Ashland to the north. It is approximately 1.5 miles from Hayward and about 15 miles from downtown Oakland. The city spans a land area of 3.32 square miles, with no water area.
Community & economy
The character of San Lorenzo is defined by its friendly neighborhoods and diverse population. Local industries primarily include retail, healthcare, and small businesses that cater to the community's needs. Daily life in San Lorenzo includes enjoying nearby parks and participating in community events that foster a camaraderie among its residents.
Transportation
San Lorenzo is conveniently accessible via several major highways, including Interstate 880, which runs close by to the west. The nearest significant airport is Oakland International Airport, located approximately 12 miles away. Public transportation options include bus services that connect residents to surrounding cities and the Bay Area.
History
San Lorenzo was founded as a bedroom community in the post-World War II era, emerging as part of the suburban growth of the Bay Area. The city's development was influenced by its proximity to agriculture and light industry in the surrounding region, which provided jobs for its residents. Notable events in its history include the establishment of local parks and schools that have served the community for decades.
Did you know?
A surprising fact about San Lorenzo is that it has only one ZIP code, 94580, which simplifies postal services for the residents. Many locals enjoy the scenic beauty of the area, which boasts several parks and recreational facilities despite its small size.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What is the ZIP code for San Lorenzo, CA?
San Lorenzo, CA has one ZIP code: 94580.
What is the main ZIP code for San Lorenzo, CA?
The primary ZIP code for San Lorenzo, CA is 94580. The city uses area code 341 or 510 for phone service.
What county is San Lorenzo, CA in?
San Lorenzo is located in Alameda County, California.
How many ZIP codes are in San Lorenzo, CA?
San Lorenzo, CA has 1 ZIP code.
What is the ZIP code for the San Lorenzo business district near Bay Street?
The San Lorenzo business district near Bay Street is located in ZIP code 94580, which serves as the primary commercial area for the community.
What ZIP code covers the San Lorenzo BART station area in Alameda County?
The San Lorenzo BART station and its surrounding transit-oriented development area are located in ZIP code 94580, the only ZIP code serving San Lorenzo.
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