Washington-St Tammany E C, Inc Electricity Rate per kWh (2024 EIA Data)

Washington-St Tammany E C, Inc is a member-owned cooperative electric utility that reports to the U.S. Energy Information Administration under utility number 21567. In 2024 it served 50,901 bundled residential customers in Louisiana, and its average realised residential price was 11.85 cents per kWh: $94 million of residential revenue divided by 789,798 MWh of residential sales.

Across the other sectors, Washington-St Tammany E C, Inc's 2024 average prices were 11.45 cents for commercial customers (4,697 accounts) and 15.28 cents for industrial customers (1 accounts). Unusually, industrial customers paid 3.43 cents more per kWh than households.

Within Louisiana, Washington-St Tammany E C, Inc ranked number 8 of 21 utilities with bundled or delivery service by residential accounts served (50,901) and accounted for 2.55% of the state's residential electricity sales in 2024, measured in MWh sold or delivered rather than in customers. The state-wide average realised residential price in 2024, computed from the same EIA file, was 11.73 cents per kWh, so Washington-St Tammany E C, Inc's customers paid 0.12 cents above the Louisiana average (+1.0%). For context, EIA's latest monthly figure for Louisiana is 13.49 cents per kWh (June 2026, Electric Power Monthly); that is a different, more recent measure across all utilities and is not directly comparable with a 2024 annual average.

EIA's service-territory file places Washington-St Tammany E C, Inc in 3 Louisiana counties: St Tammany, Tangipahoa, and Washington. On the grid side it operates in the SERC NERC region and the MISO market, and reported distribution as its activities. Balancing authority code: MISO.

EIA's preliminary 2025 early release (published 4 August 2026) shows a residential price of 11.04 cents per kWh for Washington-St Tammany E C, Inc in Louisiana across 51,187 residential customers, 0.81 cents lower than the 2024 final figure. Early-release data has not been validated by EIA and must not be aggregated; the 2024 final figures remain the reference on this page until the 2025 final file is published.

The nearest other utilities in Louisiana by service-territory centroid are Dixie Electric Membership Corp (LA) (45.6 miles away, 11.91 cents), Entergy New Orleans, LLC (54.7 miles away, 13.03 cents), Pointe Coupee Elec Member Corp (77.5 miles away, 13.42 cents), South Louisiana Elec Coop Assn (85.5 miles away, 13.48 cents), and Terrebonne Parish Consol Gov't (98.9 miles away, 10.73 cents).