Detailed electricity rate data on ZIP Code 78665 in Williamson County in the U.S. View various electricity statistics about ZIP Code 78665, which is primarily associated with Round Rock, TX. View commercial, industrial and residential electricity rates in ZIP Code 78665 to those in Texas and also tho those in the U.S. as a whole. In addition, compare both historical and current electricity usage in this Williamson County region.
View the charts and tables below for a snapshot of how electricity rates in ZIP Code 78665 (Round Rock, TX) compare to rates in Texas and to the U.S. overall.
The average residential electricity rate in ZIP Code 78665 of 10.72¢/kWh is lower than the average residential rate in the state of Texas overall.
ZIP Code 78665 vs. Texas
Texas's average residential electricity rate of 15.69¢/kWh is approximately 46% higher than the 10.72¢/kWh 78665 average rate.
ZIP Code 78665 vs. the U.S.
Additionally, the average residential electricity rate of 17.45¢/kWh in the U.S. overall is an estimated 63% higher than the average residential rate in 78665.
See the table below for a comparison of residential, commercial, and industrial electricity rates in ZIP Code 78665, Texas, and also in the U.S. as a whole.
| Region | Residential | Commercial | Industrial |
|---|---|---|---|
| ZIP Code 78665 | 10.72¢/kWh | 9.32¢/kWh | 6.59¢/kWh |
| Texas | 15.69¢/kWh | 8.64¢/kWh | 7.25¢/kWh |
| United States | 17.45¢/kWh | 13.64¢/kWh | 9.29¢/kWh |
View the charts and tables below for electricity usage estimates and comparisons for ZIP Code 78665. See how this Williamson County region compares to other regions in Texas.
This chart visualized the estimated monthly electricity usage rates in ZIP Code 78665 versus the average electricity usage a ZIP Code in Texas.
MkWh: Million Kilowatt-hours| Month | ZIP Code 78665 | Average TX ZIP | Texas |
|---|---|---|---|
| Feb 2025 | 32.94 MkWh | 5.07 MkWh | 13166 MkWh |
| Mar 2025 | 27.26 MkWh | 4.19 MkWh | 10897 MkWh |
| Apr 2025 | 26.32 MkWh | 4.05 MkWh | 10523 MkWh |
| May 2025 | 32.45 MkWh | 4.99 MkWh | 12974 MkWh |
| Jun 2025 | 41.1 MkWh | 6.32 MkWh | 16429 MkWh |
| Jul 2025 | 47.47 MkWh | 7.3 MkWh | 18975 MkWh |
| Aug 2025 | 48.56 MkWh | 7.47 MkWh | 19413 MkWh |
| Sep 2025 | 42.1 MkWh | 6.48 MkWh | 16829 MkWh |
| Oct 2025 | 35.21 MkWh | 5.42 MkWh | 14077 MkWh |
| Nov 2025 | 26.02 MkWh | 4 MkWh | 10403 MkWh |
| Dec 2025 | 30.43 MkWh | 4.68 MkWh | 12163 MkWh |
| Jan 2026 | 34.9 MkWh | 5.37 MkWh | 13950 MkWh |
The ZIP Code of 78665 is connected to Round Rock, TX in Williamson County. This Texas region currently has an approximate population of 49,074 residents and an estimated 14,791 total housing units contributing to overall electricity usage statistics in this locality.
* Local 78665 electricity data referenced here (rates and usage) obtained from loquol.
