ZIP code 21250 covers Catonsville, Maryland in Baltimore County. This area is served by 13 utility providers across 5 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
Internet
Nearby ZIP codes
Frequently asked questions
How do I set up utilities when moving to 21250?
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 21250?
No — electricity in Catonsville, MD costs about 24% less than the national average. Based on 2023 NREL residential electricity rate data.
What internet providers are available in 21250?
Catonsville, MD has broadband coverage. Providers include Verizon (Fixed Wireless up to 200 Mbps). Availability varies by street address. Based on FCC Broadband Data Collection filings.
What county is 21250 in?
ZIP code 21250 is in Baltimore 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.