Rates by state / Louisiana / Washington-St Tammany E C, Inc
Cooperative · 51,187 residential customers
Washington-St Tammany E C, Inc electricity rates
Residential customers paid an average of 11.0¢ per kWh in 2025, 15% below the Louisiana average of 13.0¢ for the latest 12 months.
Average rate
11.0¢/kWh
2025, all residential revenue ÷ kWh
Average bill
$146/mo
At 1,323 kWh a month
1-year change
-6.8%
5 years: +20.9%
Average rate by year
20209.1¢
20219.6¢
202211.1¢
202310.8¢
202411.8¢
202511.0¢
Washington-St Tammany E C, Inc bill at different usage levels
Estimated monthly bill at Washington-St Tammany E C, Inc's 2025 average rate of 11.0¢ per kWh. Actual bills vary with your plan, fixed charges and taxes.
| Monthly use | Washington-St Tammany E C, Inc | Louisiana average |
|---|---|---|
| 500 kWh | $55 | $65 |
| 750 kWh | $83 | $97 |
| 1,000 kWh | $110 | $130 |
| 1,500 kWh | $166 | $195 |
| 2,000 kWh | $221 | $260 |
Other utilities in Louisiana
| Utility | Customers | Rate |
|---|---|---|
| Entergy Louisiana LLC | 961,871 | 11.9¢ |
| Cleco Power LLC | 252,816 | 14.3¢ |
| Southwestern Electric Power Co | 206,984 | 13.8¢ |
| Entergy New Orleans, LLC | 188,385 | 13.2¢ |
| Dixie Electric Membership Corp - (LA) | 111,329 | 13.5¢ |
| Southwest Louisiana E M C | 109,628 | 11.6¢ |
| City of Lafayette - (LA) | 60,634 | 11.5¢ |
| Beauregard Electric Coop, Inc | 40,452 | 13.1¢ |
Washington-St Tammany E C, Inc: common questions
- How much does Washington-St Tammany E C, Inc charge per kWh?
- Washington-St Tammany E C, Inc residential customers paid an average of 11.0¢ per kWh in 2025, counting all charges, according to EIA Form 861 data.
- What is the average Washington-St Tammany E C, Inc electric bill?
- The average Washington-St Tammany E C, Inc household used 1,323 kWh a month in 2025, which works out to about $146 a month at the average rate.
- Is Washington-St Tammany E C, Inc cheaper than other utilities in Louisiana?
- Washington-St Tammany E C, Inc's average rate is 15% below the Louisiana average of 13.0¢. 4 of 20 utilities in Louisiana have a lower average rate.
- Did Washington-St Tammany E C, Inc raise rates?
- Washington-St Tammany E C, Inc's average residential rate changed -6.8% from 2024 to 2025 and +20.9% since 2020.
- Is my Washington-St Tammany E C, Inc bill too high?
- Enter the kWh and amount from your bill in the free bill check on AverageElectricBill.com. It compares your use with similar Louisiana homes and your rate with Washington-St Tammany E C, Inc's average.
Got a Washington-St Tammany E C, Inc bill?
Check my billSource: U.S. EIA Form EIA-861, 2025 final data.