Electric utilities in Mississippi
Every electric utility serving Mississippi in EIA data year 2025, with ownership type, grid operator, balancing authority, customers and the counties each one serves.
Retail utilities543 investor-owned, 26 co-ops, 23 municipal
All entities54Including marketers and other filers
Counties covered82With at least one utility listed
Retail customers1,537,015Sum of utility customer counts
Retail electric utilities in Mississippi
Sorted by customers. See Mississippi on the map, and the state regulator, Mississippi Public Service Commission.
| Utility | EIA ID | Type | ISO or region | Balancing authority | Customers | Counties served |
|---|---|---|---|---|---|---|
| Entergy Mississippi LLCEntergy Mississippi | 12685 | Investor-owned | MISO | MISO | 450,060 | 46 Adams, Amite, Attala, Bolivar, Calhoun, Carroll, Choctaw, Claiborne, Clay, Coahoma, Copiah, Covington, DeSoto, Franklin, Grenada, Hinds, Holmes, Humphreys, Issaquena, Jefferson, Jefferson Davis, Lawrence, Leake, Leflore, Lincoln, Madison, Montgomery, Panola, Pike, Quitman, Rankin, Scott, Sharkey, Simpson, Smith, Sunflower, Tallahatchie, Tate, Tunica, Walthall, Warren, Washington, Webster, Wilkinson, Yalobusha, Yazoo |
| Mississippi Power CoMississippi Power (Southern Co) | 12686 | Investor-owned | Southeast (no ISO) | SOCO | 188,000 | 23 Clarke, Covington, Forrest, George, Greene, Hancock, Harrison, Jackson, Jasper, Jefferson Davis, Jones, Lamar, Lauderdale, Leake, Marion, Neshoba, Newton, Pearl River, Perry, Scott, Smith, Stone, Wayne |
| Coast Electric Power Assn | 3841 | Cooperative | Southeast (no ISO) | SOCO | 82,544 | 3 Hancock, Harrison, Pearl River |
| Singing River Elec Cooperative | 17252 | Cooperative | MISO | MISO | 74,013 | 7 George, Greene, Harrison, Jackson, Perry, Stone, Wayne |
| Southern Pine Elec Power Assn | 17647 | Cooperative | MISO | MISO | 67,547 | 11 Copiah, Covington, Forrest, Jasper, Jefferson Davis, Lawrence, Newton, Rankin, Scott, Simpson, Smith |
| Pearl River Valley El Pwr Assn | 14563 | Cooperative | MISO | MISO | 50,039 | 12 Covington, Forrest, George, Jackson, Jefferson Davis, Lamar, Lawrence, Marion, Pearl River, Perry, Stone, Walthall |
| 4-County Electric Power Assn | 6641 | Cooperative | Southeast (no ISO) | TVA | 48,564 | 7 Choctaw, Clay, Lowndes, Monroe, Noxubee, Oktibbeha, Webster |
| Tombigbee Electric Power Assn | 19007 | Cooperative | Southeast (no ISO) | TVA | 43,686 | 4 Itawamba, Lee, Pontotoc, Prentiss |
| Dixie Electric Power Assn | 5175 | Cooperative | MISO | MISO | 39,088 | 7 Clarke, Covington, Forrest, Jasper, Jones, Perry, Wayne |
| Central Electric Power Assn - (MS) | 2849 | Cooperative | Southeast (no ISO) | TVA | 36,553 | 6 Attala, Leake, Newton, Rankin, Scott, Tate |
| Magnolia Electric Power Assn | 11519 | Cooperative | MISO | MISO | 31,779 | 6 Amite, Franklin, Lawrence, Lincoln, Pike, Walthall |
| Northcentral Mississippi E P A | 13735 | Cooperative | Southeast (no ISO) | TVA | 31,603 | 2 DeSoto, Marshall |
| Delta Electric Power Assn | 22815 | Cooperative | MISO | MISO | 28,163 | 13 Attala, Bolivar, Carroll, Choctaw, Grenada, Holmes, Humphreys, Leflore, Montgomery, Sunflower, Tallahatchie, Washington, Webster |
| Tallahatchie Valley E P A | 18447 | Cooperative | Southeast (no ISO) | TVA | 27,550 | 5 Lafayette, Panola, Tallahatchie, Tate, Yalobusha |
| North East Mississippi EPA | 40302 | Cooperative | Southeast (no ISO) | TVA | 26,962 | 4 Lafayette, Marshall, Pontotoc, Union |
| Southwest Mississippi E P A | 17683 | Cooperative | MISO | MISO | 25,366 | 9 Adams, Amite, Claiborne, Copiah, Franklin, Hinds, Jefferson, Lincoln, Wilkinson |
| Pontotoc Electric Power Assn | 15211 | Cooperative | Southeast (no ISO) | TVA | 19,297 | 2 Calhoun, Pontotoc |
| Alcorn County Elec Power Assn | 276 | Cooperative | Southeast (no ISO) | TVA | 18,842 | 1 Alcorn |
| Natchez Trace Elec Power Assn | 13227 | Cooperative | Southeast (no ISO) | TVA | 15,826 | 3 Calhoun, Chickasaw, Webster |
| City of Tupelo - (MS) | 19273 | Municipal | Southeast (no ISO) | TVA | 15,338 | 1 Lee |
| Prentiss County Elec Pwr Assn | 15334 | Cooperative | Southeast (no ISO) | TVA | 13,828 | 2 Lee, Prentiss |
| Tippah Electric Power Assn | 18943 | Cooperative | Southeast (no ISO) | TVA | 13,796 | 1 Tippah |
| City of Starkville | 18006 | Municipal | Southeast (no ISO) | TVA | 13,609 | 1 Oktibbeha |
| Tishomingo County E P A | 18951 | Cooperative | Southeast (no ISO) | TVA | 13,420 | 2 Prentiss, Tishomingo |
| City of Columbus - (MS) | 4068 | Municipal | Southeast (no ISO) | TVA | 12,864 | 1 Lowndes |
| East Mississippi Elec Pwr Assn | 5578 | Cooperative | Southeast (no ISO) | TVA | 12,783 | 10 Attala, Clarke, Jasper, Kemper, Lauderdale, Neshoba, Newton, Noxubee, Wayne, Winston |
| Twin County Electric Pwr Assn | 18961 | Cooperative | MISO | MISO | 12,461 | 7 Humphreys, Issaquena, Leflore, Sharkey, Sunflower, Warren, Washington |
| City of Holly Springs | 8748 | Municipal | Southeast (no ISO) | TVA | 11,639 | 2 Benton, Marshall |
| Monroe County Elec Power Assn | 40303 | Cooperative | Southeast (no ISO) | TVA | 11,254 | 2 Lowndes, Monroe |
| City of New Albany - (MS) | 13412 | Municipal | Southeast (no ISO) | TVA | 10,822 | 4 Benton, Marshall, Tippah, Union |
| Yazoo Valley Elec Power Assn | 21114 | Cooperative | MISO | MISO | 10,428 | 6 Holmes, Humphreys, Issaquena, Sharkey, Warren, Yazoo |
| City of Oxford - (MS) | 14275 | Municipal | Southeast (no ISO) | TVA | 9,712 | 1 Lafayette |
| Greenwood Utilities Comm | 7651 | Municipal | MISO | MISO | 9,257 | 2 Carroll, Leflore |
| Coahoma Electric Power Assn | 3839 | Cooperative | MISO | MISO | 8,076 | 7 Bolivar, Coahoma, DeSoto, Quitman, Sunflower, Tallahatchie, Tunica |
| Clarksdale Public Utilities | 3702 | Municipal | MISO | MISO | 6,581 | 1 Coahoma |
| City of Okolona | 14078 | Municipal | Southeast (no ISO) | TVA | 5,263 | 1 Chickasaw |
| Public Serv Comm of Yazoo City | 21095 | Municipal | MISO | MISO | 5,127 | 1 Yazoo |
| Canton Municipal Utilities | 2974 | Municipal | MISO | MISO | 4,583 | 1 Madison |
| City of Amory | 571 | Municipal | Southeast (no ISO) | TVA | 3,999 | 1 Monroe |
| City of West Point - (MS) | 20394 | Municipal | Southeast (no ISO) | TVA | 3,910 | 1 Clay |
| City of Philadelphia - (MS) | 14947 | Municipal | Southeast (no ISO) | TVA | 3,846 | 1 Neshoba |
| Louisville Electric System | 11247 | Municipal | Southeast (no ISO) | TVA | 3,456 | 1 Winston |
| City of Aberdeen - (MS) | 55 | Municipal | Southeast (no ISO) | TVA | 3,231 | 1 Monroe |
| City of Kosciusko - (MS) | 10447 | Municipal | MISO | MISO | 3,115 | 1 Attala |
| City of Durant - (MS) | 5479 | Municipal | MISO | MISO | 2,700 | 1 Holmes |
| City of Water Valley - (MS) | 20176 | Municipal | Southeast (no ISO) | TVA | 2,009 | 1 Yalobusha |
| City of Leland - (MS) | 10892 | Municipal | MISO | MISO | 1,834 | 1 Washington |
| City of Collins - (MS) | 3957 | Municipal | Southeast (no ISO) | SOCO | 1,390 | 1 Covington |
| City of Macon - (MS) | 11458 | Municipal | Southeast (no ISO) | TVA | 1,194 | 1 Noxubee |
| Tennessee Valley Authority | 18642 | Federal | Southeast (no ISO) | TVA | 8 | 0 — |
| City of Itta Bena - (MS) | 9472 | Municipal | MISO | MISO | — | 1 Leflore |
| Cooperative Energy | 17568 | Cooperative | MISO | — | — | 0 — |
| Municipal Energy Agency of MS | 11833 | Joint action / municipal marketing | Southeast (no ISO) | — | — | 0 — |
| System Energy Resources, Inc | 12465 | Investor-owned | Southeast (no ISO) | — | — | 0 — |
Which utilities serve each county in Mississippi
About this data
Which utilities exist comes from the U.S. Energy Information Administration’s Form EIA-861 and EIA-861S, data year 2025 (final release, October 7, 2026), read directly from eia.gov. County service territories, balancing authority codes and customer counts come from EIA-861 for 2018, the latest year compiled at county level for this directory; utilities that started reporting after 2018 carry their 2025 values. County boundaries are U.S. Census cartographic boundaries (us-atlas 3.0, Albers USA projection).
Customer counts are per utility within Mississippi. A county’s grid operator is the one serving most of its customers, estimated by spreading each utility’s customers evenly over its counties. Download every state in one file from the U.S. Electric Utility Directory.
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