ZIP code 21240 covers Ferndale, Maryland in Anne Arundel County. This area is served by 31 utility providers across 4 categories. The average residential electricity rate here is 11.4¢/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 21240?
Contact each provider separately before your move-in date. Start with electric (Baltimore Gas & Electric Co) and gas (Baltimore Gas And Electric Co, (800) 685-0123) 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 21240?
No — electricity in Ferndale, MD costs about 24% less than the national average. Based on 2023 NREL residential electricity rate data.
What county is 21240 in?
ZIP code 21240 is in Anne Arundel County, Maryland.
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.