12.73¢
per kWh, 2025
[ City of San Marcos / TX ]
City of San Marcos electricity rates in Texas
CITY SETS RATES · DATA 2025
change in average rate, 2024→2025
+5.8%
vs 2024
22,362
residential customers
+34.4%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at City of San Marcos's average effective residential rate (12.73¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 14.92¢ | — | 20,123 |
| 2016 | 12.71¢ | −14.8% | 20,439 |
| 2017 | 13.34¢ | +5.0% | 20,653 |
| 2018 | 12.55¢ | −5.9% | 20,960 |
| 2019 | 13.34¢ | +6.3% | 21,073 |
| 2020 | 9.47¢ | −29.0% | 21,415 |
| 2021 | 9.85¢ | +4.0% | 21,698 |
| 2022 | 10.17¢ | +3.3% | 21,873 |
| 2023 | 11.19¢ | +10.0% | 22,014 |
| 2024 | 12.03¢ | +7.5% | 22,261 |
| 2025 | 12.73¢ | +5.8% | 22,362 |
How this compares
15.40¢
Texas average, 2025
−17.3%
City of San Marcos vs TX 2025 average
−26.1%
vs US 2025 average
#49
priciest in TX
Serves 1 county in Texas: Hays. 2 ZIP codes.
What the numbers show
Since 2015, City of San Marcos's average residential rate has gone from 14.92¢ to 12.73¢ per kWh: −14.7% over 10 years, or about −1.6% a year. It rose in 7 of the 10 years we can compare, and the biggest one-year increase was +10.0% in 2023. The largest drop was −29.0% in 2020.
For a home using 1,110 kWh a month, the Texas average, City of San Marcos's 2025 rate works out to about $1,696 a year, $356 less than at Texas's average rate of 15.40¢. Of the 81 Texas utilities in our data with a 2025 price, it is the 49th most expensive.
City of San Marcos served 20,123 homes in 2015 and 22,362 in 2025 (+11.1%), under 1% of Texas's residential electricity customers.
Who sets City of San Marcos's rates
City of San Marcos is a municipal utility owned by the local government. The city council or a local utility board sets its rates, usually after a public meeting, and the Public Utility Commission of Texas generally does not.
Commission contact: Public Utility Commission of Texas. How we calculate every figure on this page: methodology.
Questions
Is City of San Marcos raising rates in 2026?
City of San Marcos's rates are set by the city council or a local utility board, not through a rate case at the Public Utility Commission of Texas, so check its own notices for a change this year. Its average residential rate moved +5.8% from 2024 to 2025.
What does City of San Marcos charge per kWh?
City of San Marcos's average effective residential rate was 12.73¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). Texas's 2025 average was 15.40¢.
How much have City of San Marcos rates gone up in five years?
+34.4% between 2020 and 2025, against +35.4% for Texas as a whole over the latest five-year window.
How many customers does City of San Marcos have in Texas?
22,362 residential customers in 2025, across 1 county including Hays, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey, which every US utility files. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)