Electricity rates in 76578 — Thrall, TX
Homes in ZIP 76578 pay about 11.4¢ per kWh (Bluebonnet Electric Coop, Inc., 2024 average). The Texas average is 15.9¢ and the U.S. average 18.2¢ (Aug 2026).
In Williamson County, the poles and wires belong to Oncor Electric Delivery Company LLC (delivery only — it does not sell electricity). Retail electric providers averaged 16.7¢ per kWh for Texas homes in 2024 (EIA-861).
What a month of electricity costs
Monthly cost at the average price of 11.4¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.
Where ZIP 76578 is
Outlined: ZIP code area · scroll or pinch to zoomUtilities serving 76578
| Utility | Home price | Avg. bill | Customers in TX |
|---|---|---|---|
| Bluebonnet Electric Coop, Inc. Cooperative | 11.4¢ 2024 | $138 | 113,890 |
| Heart of Texas Electric Coop Cooperative | 12.6¢ 2024 | $192 | 18,722 |
| Bartlett Electric Coop, Inc. Cooperative | 16.1¢ 2024 | $219 | 11,527 |
| Austin Energy Municipal · serves Williamson County | 12.6¢ 2024 | $105 | 507,291 |
| Pedernales Electric Coop, Inc. Cooperative · serves Williamson County | 12.2¢ 2024 | $146 | 405,587 |
| City of Georgetown (TX) Municipal · serves Williamson County | 13.9¢ 2024 | $125 | 29,904 |
| City of Bartlett (TX) Municipal · serves Williamson County | 14.7¢ 2024 | $175 | 686 |
Utilities are matched to this ZIP code by NREL’s ZIP–utility table and the EIA service-territory list for Williamson County; county matches may serve only part of the area. Prices are each utility’s average residential revenue per kWh.
Texas price trend
Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the West South Central region, which includes Arkansas, Louisiana, Oklahoma, Texas.
Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.
Questions about 76578
How much does electricity cost in 76578?
About 11.4¢ per kWh for homes (Bluebonnet Electric Coop, Inc., 2024 average, EIA). At 900 kWh a month that is roughly $103.
Who is the electric utility for 76578?
Bluebonnet Electric Coop, Inc., with about 113,890 residential customers in Texas; 6 other utilities also serve parts of the area.
Is electricity in TX getting more expensive?
The Texas residential average was 15.9¢ per kWh in August 2026, up 3.3% from a year earlier; the U.S. average was 18.2¢.
Can I choose my electricity supplier in TX?
In the competitive ERCOT area of Texas, yes: compare retail electric provider plans at PowerToChoose.org, the official site of the Public Utility Commission of Texas.