Find the electric utility for your ZIP code
Type your ZIP code. The finder shows the utilities that serve your county, and it links to the calculator if we have the tariff of the utility.
How the finder works
The U.S. Energy Information Administration (EIA) collects a list of the counties that each utility serves (Form EIA-861, 2025 data). The U.S. Census Bureau publishes the counties of each ZIP code area (ZCTA, 2020). The finder joins the two lists.
A county can have more than one utility, for example an investor-owned utility, an electric cooperative and a city utility. The finder shows all of them, in order of the number of homes that they serve in the state. If we have the tariff of a utility, the finder links to its calculator. For the FirstEnergy utilities in Pennsylvania (Met-Ed, Penelec, Penn Power and West Penn Power), the finder shows only the rate districts that the tariff lists for your county.
A ZIP code area can cross a county line. The finder uses each county that has 5% or more of the area of the ZIP code.
In some states you can buy electricity from a supplier, for example Texas, Pennsylvania, Ohio, Illinois, New York, New Jersey, Maryland, Connecticut, Massachusetts, Maine, New Hampshire and Rhode Island. The finder shows the utility that delivers electricity to your home, not the supplier.
Sources
- EIA-861 2025 final data: Service Territory and Sales to Ultimate Customers
- U.S. Census Bureau, 2020 ZCTA to County Relationship File
33,642 ZIP code areas. 1,333 utilities with homes as customers.