Utility rates in Sullivan's Island vs. US average
Typical monthly utility bills in Sullivan's Island
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.
How Sullivan's Island heats its homes
5% natural gas · 87% electricity · 8% other fuels
Electric rates in Sullivan's Island
Residential rates range from 14.4¢ to 14.4¢ per kWh.
Providers include Berkeley Electric Coop Inc, Dominion Energy South Carolina, Inc.
This is 13% below the national average of 16.5¢/kWh.
Internet providers in Sullivan's Island
Sullivan's Island has moderate broadband coverage.
Availability varies by address. Based on FCC Broadband Data Collection filings.
Electric 2 providers
Natural Gas 1 provider
Water 15 providers
Sewer 1 provider
Internet 4 providers
ZIP codes in Sullivan's Island, SC
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.