This area is served by 40 utility providers across 4 categories. The average residential electricity rate here is 27.1¢/kWh.
Utility rates in ZIP 94021 vs. US average
Typical monthly utility bills in ZIP 94021
Figures from U.S. Census ACS 5-year estimates, reflecting households that pay utilities separately from rent. In dense urban areas where heat or hot water is often included in rent, these numbers represent the subset of residents who pay directly.
Electric
Natural Gas
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Internet
Nearby ZIP codes
Frequently asked questions
How do I set up utilities when moving to 94021?
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.
How do utility rates in 94021 compare to the national average?
Residential electricity in Loma Mar, CA averages 27.1¢/kWh, about 64% above the US average of 16.5¢/kWh and 15% below the California state average of 32.0¢/kWh. Natural gas in California averages $19.14/Mcf, about 32% above the national average. Actual monthly bills vary by home size, insulation, and season. Local rates from NREL; state and US averages from EIA Form 861 (2024); natural gas prices from EIA Form 176 (2024).
Is electricity expensive in 94021?
Electricity in Loma Mar, CA costs about 64% more than the national average. Compared to California overall, rates here are about 15% lower. Local rates from NREL (2023); state and US averages from EIA (2024).
What internet providers are available in 94021?
Loma Mar, CA has broadband coverage. Providers include Xfinity (Cable up to 2,000 Mbps). Availability varies by street address. Based on FCC Broadband Data Collection filings.
What county is 94021 in?
ZIP code 94021 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. Local electric rates are based on 2023 NREL Utility Rate Database data; state and US averages are from EIA Form 861 (2024). 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: May 2026.