Washington-St Tammany E C, Inc: average rate and electric bill (2025)
Washington-St Tammany E C, Inc (electric cooperative, Louisiana) served 51,187 homes in 2025. The average customer used 1,323 kWh a month and paid $146, an average price of 11.0¢ per kWh including fixed charges, riders and taxes. That is 12% below the Louisiana average of 12.5¢.
What a bill costs at Washington-St Tammany E C, Inc's average price
| Monthly usage | Estimated bill |
|---|---|
| 500 kWh | $55 |
| 1,000 kWh | $110 |
| 1,500 kWh | $166 |
The average price spreads fixed monthly charges over all kWh. At low usage your price per kWh is higher, at high usage lower. Your current tariff can differ from the 2025 average, especially after a rate case.
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Compare with other utilities in Louisiana
| Name | ¢/kWh | Avg. bill |
|---|---|---|
| Washington-St Tammany E C, Inc | 11.0 | $146 |
| City of Lafayette | 11.5 | $139 |
| Southwest Louisiana E M C | 11.6 | $162 |
| Entergy Louisiana LLC | 11.9 | $147 |
| Beauregard Electric Coop, Inc | 13.1 | $168 |
| Entergy New Orleans, LLC | 13.2 | $138 |
| Claiborne Electric Coop, Inc | 13.3 | $153 |
| Dixie Electric Membership Corp | 13.5 | $180 |
| Southwestern Electric Power Co | 13.8 | $163 |
| Cleco Power LLC | 14.3 | $178 |
Source: U.S. Energy Information Administration, Form EIA-861 annual data 2025 (released October 2026), utility ID 21567. Average price = residential revenue ÷ residential kWh sold; average bill = revenue ÷ customers ÷ 12.