This area is served by 27 utility providers across 4 categories. The average residential electricity rate here is 14.7¢/kWh. 66.7% of households use electricity as their primary heating fuel.
Utility rates in ZIP 21639 vs. US average
Typical monthly utility bills in ZIP 21639
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
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Internet
Nearby ZIP codes
Frequently asked questions
How do I set up utilities when moving to 21639?
Contact each provider separately before your move-in date. Start with electric (Choptank Electric Cooperative, Inc) and gas (Chesapeake Utilities Corporation, (302) 734-6799) 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 21639 compare to the national average?
Residential electricity in Greensboro, MD averages 14.7¢/kWh, about 11% below the US average of 16.5¢/kWh and 18% below the Maryland state average of 17.9¢/kWh. Natural gas in Maryland averages $16.14/Mcf, about 11% 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 21639?
No — electricity in Greensboro, MD costs about 11% less than the national average. Compared to Maryland overall, rates here are about 18% lower. Local rates from NREL (2023); state and US averages from EIA (2024).
What internet providers are available in 21639?
Greensboro, MD has strong broadband coverage. Providers include AT&T (Fixed Wireless up to 100 Mbps), Bloosurf LLC (Fixed Wireless up to 50 Mbps), T-Mobile (Fixed Wireless up to 100 Mbps), Verizon (Fixed Wireless up to 300 Mbps), Xfinity (Cable up to 2,000 Mbps). Availability varies by street address. Based on FCC Broadband Data Collection filings.
What county is 21639 in?
ZIP code 21639 is in Caroline 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. 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.