Tool
Find your electric utility by ZIP Code
Which electric utilities serve a ZIP Code, what kind each one is, and the average commercial price each billed in EIA’s latest final data. Free, no sign-up, nothing stored.
Enter a ZIP Code to see the electric utilities the U.S. Energy Information Administration lists in its county, with each one’s commercial customers and average commercial price from EIA’s final 2025 data. It covers 33,642 ZIP Code areas in all 50 states and DC. Which utility serves a particular address still depends on the street.
Source: EIA Form EIA-861 Service Territory and Sales (2025); U.S. Census Bureau ZCTA-to-county relationship file (2020)
How the lookup works
Two public records, joined by county. EIA’s Form EIA-861 asks every distribution utility which counties it serves; the Census Bureau places each ZIP Code area in its counties and measures how much of its land is in each. The lookup takes your ZIP Code to its counties and lists every utility EIA records there, with the number of commercial customers it reported in the state and the average price those customers paid, revenue divided by kWh, for 2025.
That is why the answer is a short list rather than one name. A county is usually shared: an investor-owned utility in the towns, electric cooperatives in the rural parts, and city-owned utilities in some cities. The list is ordered by commercial customers, so the first name is the largest presence, not necessarily yours.
What to do with the answer
- Open the utility’s page. Utilities with a page here link to it: the price every year since 2015, the average commercial customer’s use and bill, smart meters, time-varying rates and outage minutes.
- Check whether you can choose a supplier. Retail choice is set by state and, within a state, by utility; city-owned utilities and cooperatives are usually outside it. Your state page says how it works there.
- Compare your own price. The rate checker sets what you pay per kWh against your state’s average, and the utility comparison sets two to four utilities side by side.
Common questions
- How do I find out which electric utility serves my business?
- Enter the ZIP Code here to see the utilities EIA lists in that county. The utility named on an existing bill for the address is the definitive answer; for a new site, ask the utilities listed, or the landlord, which one has service at the street address, because two utilities can serve opposite sides of a road.
- Why does my ZIP Code show several utilities?
- EIA records every county a utility has customers in, and many counties are split between an investor-owned utility, one or more electric cooperatives and city-owned utilities. The lookup lists all of them for the county, largest first by commercial customers, and does not guess which one is at your address.
- Why does the price say delivery only?
- In parts of Texas and other states with retail choice, the local utility only delivers the power and a separate supplier sells the energy. EIA’s figure for those utilities is the delivery price alone, so it is not comparable with an all-in price from a utility that does both.
- Why is my ZIP Code not found?
- The lookup uses the Census Bureau’s ZIP Code Tabulation Areas, which cover ZIP Codes with addresses on the ground. PO-box-only and single-business ZIP Codes have no area of their own. Try the ZIP Code of the street address, or open your state page, which lists every utility with at least 500 commercial customers.
The lookup data is open: one JSON file per two-digit ZIP prefix at /data/api/v1/zip/NN.json, described on the open data page.
Knowing the utility is the first step. A person can read the bill itself: rate schedule, demand charges, riders and whether a supplier contract would help. Nobody calls unless you ask.