Electric Company by ZIP Code: Which Utility Serves Your ZIP?

1. ZIP code to county. The Census Bureau publishes which counties each ZIP code area overlaps and how much land lies in each. We use the 2020 relationship file.
2. County to utility. Every year utilities tell EIA which counties they serve. We list the utilities for each county, largest first by residential customers.
3. You confirm. The bill, the meter or a call to your city settles which one serves your address.

Two steps means two limits. A ZIP code can cover parts of several counties, and a county can have several utilities. The result is a short list of companies that could serve you, not a street-level answer.

ZIP codes were drawn for mail delivery. Electric service areas follow older lines: franchise agreements, city limits, cooperative territories and the reach of power lines. A single ZIP code can hold homes of an investor-owned company, a cooperative and a city system. Our tool uses ZIP code tabulation areas, which approximate ZIP codes for the Census, so a few ZIP codes, such as PO box only codes and brand new codes, have no match.

Each county result links to the utility profile when we have one. The profile shows its rates, bills, service area counties and reliability.

In the competitive parts of Texas, the company the tool shows delivers the power and keeps the lines working. You then choose a retail electric provider for the energy. Municipal utilities such as Austin Energy and CPS Energy, and most electric cooperatives, sit outside that market.

After you find your delivery company, read how Texas electricity choice works, the Texas city guide and how to use Power to Choose, and find your meter number with the ESI ID guide.

1. Check the top of your latest bill. The company name is there.
2. If you have no bill, look at the meter. Many carry the utility name.
3. Ask your landlord, property manager or a neighbor.
4. Call your city or county office and ask who provides electric service at your address.