| Utility | State | Customers | Residential rate |
|---|
| La Farge Municipal Electric Co - (WI) | WI | 526 | — |
| La Plata Electric Assn, Inc | CO | 47,488 | 18.33¢ |
| La Porte City Utilities | IA | 1,213 | — |
| Laclede Electric Coop, Inc | MO | 39,257 | 12.39¢ |
| LaCreek Electric Assn, Inc | NE | 257 | — |
| Lagrange County Rural E M C | IN | 7,044 | — |
| Lake Country Power | MN | 51,603 | 18.34¢ |
| Lake Mills Light & Water | WI | 4,618 | 14.54¢ |
| Lake Placid Village, Inc - (NY) | NY | 5,324 | — |
| Lake Region Electric Assn, Inc - (SD) | SD | 3,464 | — |
| Lake Region Electric Coop, Inc - (OK) | OK | 26,736 | 13.03¢ |
| Lake Region Electric Cooperative - (MN) | MN | 30,328 | 13.60¢ |
| Lakeview Light & Power | WA | 10,552 | 10.87¢ |
| Lamar County Elec Coop Assn | TX | 14,227 | 13.43¢ |
| Lamb County Electric Coop, Inc | TX | 11,659 | 9.83¢ |
| Lancaster Choice Energy | CA | 52,825 | 16.38¢ |
| Lane Electric Coop Inc | OR | 13,634 | 13.34¢ |
| Lane-Scott Electric Coop, Inc | KS | 5,713 | — |
| Lanesboro Public Utility Comm | MN | 621 | — |
| Lassen Municipal Utility District | CA | 10,596 | — |
| Lathrop Irrigation District | CA | 4,104 | — |
| Laurens Electric Coop, Inc | SC | 66,192 | 15.62¢ |
| Lawrenceburg Municipal Utils | IN | 3,781 | — |
| LE Energy | OH | 16,632 | 11.32¢ |
| Lea County Electric Coop, Inc - (NM) | NM | 16,775 | 10.93¢ |
| Lee County Electric Coop, Inc - (FL) | FL | 267,019 | 14.20¢ |
| Lehi City Corporation | UT | 31,153 | 10.05¢ |
| Levan Town Corporation - (UT) | UT | 395 | — |
| Lewis County Rural E C A | MO | 7,375 | — |
| Liberty Utilities | CA | 50,162 | 27.65¢ |
| Liberty Utilities (Granite State Electri | NH | 26,588 | 22.59¢ |
| Licking Rural Electric Inc | OH | 27,801 | 17.03¢ |
| Licking Valley Rural E C C | KY | 17,955 | 15.21¢ |
| Light Energy, LLC | TX | 2,317 | 11.89¢ |
| Lighthouse Electric Coop, Inc | TX | 9,529 | 16.18¢ |
| Lincoln County Power Dist No 1 | NV | 2,148 | — |
| Lincoln Electric Coop, Inc | MT | 6,909 | — |
| Lincoln Electric System | NE | 155,120 | 11.15¢ |
| Litchfield Public Utilities | MN | 3,388 | — |
| Little Ocmulgee El Member Corp | GA | 12,092 | — |
| Little River Electric Coop Inc | SC | 15,581 | — |
| Lockhart Power Co | SC | 6,339 | 14.23¢ |
| Lockwood Water & Light Company | MO | 575 | — |
| Logan County Coop Power & Light | OH | 4,856 | — |
| Long Island Power Authority | NY | 1,165,257 | 26.17¢ |
| Lorain-Medina R E C, Inc | OH | 16,898 | 17.50¢ |
| Los Alamos County - (NM) | NM | 9,299 | 14.79¢ |
| Los Angeles Department of Water & Power | CA | 1,516,453 | 26.48¢ |
| Lost River Electric Coop Inc | ID | 3,144 | — |
| Loudon Utilities Board | TN | 14,796 | 12.24¢ |
| Louisville Electric System | MS | 3,448 | 11.50¢ |
| Louisville Gas & Electric Co | KY | 441,267 | 12.42¢ |
| Loup River Public Power Dist | NE | 20,955 | 10.82¢ |
| Loup Valleys Rural P P D | NE | 5,965 | — |
| Lower Valley Energy Inc | WY | 31,530 | 7.03¢ |
| Lower Yellowstone R E A, Inc | MT | 6,416 | 9.15¢ |
| Lumbee River Elec Member Corp | NC | 68,285 | 14.32¢ |
| Lynches River Elec Coop, Inc | SC | 22,721 | 16.34¢ |
| Lyntegar Electric Coop, Inc | TX | 24,110 | 10.35¢ |
| Lyon Electric Cooperative, Inc. | MN | 3,954 | — |
| Lyon Rural Electric Coop | IA | 2,317 | — |