City of San Marcos electric rates

Updated October 7, 2026 · Source: EIA Form 861 (2024)

Municipal utility serving 22,261 homes in Texas.

Your rate

12.03¢per kWh, average residential rate 27% lower than the U.S. average (16.4¢)

$110average monthly bill$1,315 a year

911kWh used per month, average home

+27%rate change since 2020U.S. average: +28%

Texas is a retail-choice state: this utility's rate case sets the delivery part of your bill. The supply part comes from your chosen supplier or the default service rate.

Estimate your bill

Electricity you use each month (kWh)

It's on your bill, usually near the top. Starting at 911 kWh, the average for City of San Marcos homes.

kWh

$110 a month

$12 fixed charge + 10.7¢ × 911 kWh

This is an estimate. Uses the EIA average rate with a nominal $12 fixed charge; real tariffs have tiers, time-of-use pricing and riders. Your bill also includes taxes and fuel adjustments that change month to month.

Rate cases

No rate case on file for City of San Marcos right now. We check regulator dockets weekly; last check October 7, 2026. Know of one?

Rate history

City of San Marcos's average rate is up 27% since 2020, versus +28% for the U.S. average.

Average residential revenue per kWh, EIA-861. Includes delivery and, where the utility sells it, supply.

Rebates for heat pumps, batteries and EV chargers

We haven't found utility-level rebates for City of San Marcos yet. Check Texas programs or read what's left after the federal credits ended.

About City of San Marcos

Ownership: Municipal
Homes served: 22,261 residential customers (2024)
Grid operator: ERCO
Retail choice: Yes — you can pick a supplier for the energy portion
Data: EIA-861 2024, released October 7, 2026; rate cases checked October 7, 2026

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