12.73¢
per kWh, 2025
[ City of San Marcos / TX ]
City of San Marcos electricity rates in Texas
NO RATE CASE ON FILE · 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.
Questions
Is City of San Marcos raising rates in 2026?
No rate case for City of San Marcos is on file with the Public Utility Commission of Texas in our tracker. Its average residential rate moved +5.8% from 2024 to 2025. We check the commission docket monthly.
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; rate-case facts are from the Public Utility Commission of Texas docket linked on this page. 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)