ZIP code 94128 covers South San Francisco, California in San Mateo County. This area is served by 40 utility providers across 4 categories. The average residential electricity rate here is 27.1¢/kWh.
Estimated monthly utility costs
Cost data not available for this ZIP code.
Electric
Natural Gas
Water
Sewer
Nearby ZIP codes
Frequently asked questions
How do I set up utilities when moving to 94128?
Contact each provider separately before your move-in date. Start with electric (City & County of San Francisco) and gas (Pacific Gas & Electric Co, (800) 743-5000) since those typically need a few business days to activate. Water and sewer are often handled with one call to your local utility. Set up internet last since it may require an installation visit.
Is electricity expensive in 94128?
Electricity in South San Francisco, CA costs about 80% more than the national average. Compared to California overall, rates here are about 5% higher. Based on 2023 NREL residential electricity rate data.
What county is 94128 in?
ZIP code 94128 is in San Mateo County, California.
Disclaimer: Provider information is sourced from federal databases including HIFLD, EPA SDWIS, FCC Broadband Data, and EIA-861. Utility cost estimates are from the U.S. Census Bureau American Community Survey 5-Year Estimates. Electric rates are based on 2023 NREL data. Coverage areas are approximate and may not reflect recent changes. Please verify directly with your provider.
Data sources: U.S. Census Bureau, NREL, EIA-861, HIFLD, EPA, FCC. Last updated: April 2026.