Electricity in San Marcos, Texas
San Marcos has its own city-owned electric utility, City of San Marcos. Pedernales Electric Cooperative (PEC) and Bluebonnet Electric Cooperative also serve homes in Hays County, so check the name on your bill. The average City of San Marcos home paid $116.47 a month in 2025 (12.7¢ per kWh). The Texas average was $170.95.
- 77,830 people (2025 estimate)
- Hays County
- EIA data, 2025
Electric utilities in San Marcos
EIA lists utilities by county, not by city. These utilities serve homes in Hays County. Your address has one utility: its name is on your bill, or type your ZIP code in the utility finder.
| Utility | Homes in Texas | Average bill 2025 | 1,000 kWh now |
|---|---|---|---|
| City of San MarcosCity-owned utility of San Marcos | 22,362 | $116.47915 kWh, 12.7¢ | — |
| Pedernales Electric Cooperative (PEC)Electric cooperative · bill calculator | 420,753 | $153.241,202 kWh, 12.8¢ | $141.64 |
| Bluebonnet Electric CooperativeElectric cooperative | 119,030 | $144.151,244 kWh, 11.6¢ | — |
The average bill is the 2025 average of each utility's homes that bought their power from it (EIA-861); a dash means that its homes buy power from a retail supplier. The 1,000 kWh bill is from the official tariff, before taxes, for the utilities that have a calculator on this site. The Texas average was $170.95 a month for 1,110 kWh (15.4¢ per kWh).
Solar power in San Marcos
A home solar system on a south-facing roof in San Marcos makes about 1,507 kWh a year for each kW of panels (PVWatts, National Laboratory of the Rockies). A 6 kW system makes about 9,043 kWh a year. See what that saves on your utility's rates with the solar savings calculator.
Lower your electric bill in San Marcos
- Open your utility above for its average bill, outages and rates, or the bill calculator to check your own bill.
- Help paying your Pedernales Electric Cooperative (PEC) bill: 4 programs, with who qualifies and how to apply.
- Help paying the electric bill in Texas: bill assistance, payment plans and discounts.
- Why is my electric bill so high? and the appliance cost calculator.
More about Texas: Texas electric rates and all Texas utilities, business electricity rates and natural gas bills. All cities of the county: electricity in Hays County. Other cities: Austin, Dallas, El Paso, Fort Worth, Houston, San Antonio, Abilene, Amarillo, Arlington, Beaumont, Brownsville, Bryan.
Who provides electricity in San Marcos, TX?
San Marcos has its own city-owned electric utility, City of San Marcos. Pedernales Electric Cooperative (PEC) and Bluebonnet Electric Cooperative also serve homes in Hays County, so check the name on your bill.
What is the average electric bill in San Marcos, TX?
The average City of San Marcos home paid $116.47 a month in 2025 (12.7¢ per kWh). The Texas average was $170.95 a month for 1,110 kWh. Your bill depends on your kWh and your rate plan.
utilityratecalc.com is not part of any utility or city government. Sources: Census Bureau city population estimates, Vintage 2025 (the city and its counties); EIA-861 data, 2025 (utilities by county, homes and average bills). A small part of San Marcos is in 2 other counties, not shown here.