Alameda County – 94580 – San Lorenzo – CA – 44/46

Cities: San Lorenzo, CA (71.58%), Ashland, CA (21.78%), Hayward, CA (5.57%), San Leandro, CA (0.67%), Cherryland, CA (0.40%)
County: Alameda County, CA

Estimated zip code population in 2011: 28,430
Zip code population in 2010: 27,152
Zip code population in 2000: 26,237