Which electricity utility serves ZIP 78584?

Starr County: AEP Texas Central Company, Magic Valley Electric Coop Inc, Medina Electric Coop, Inc. Which one serves a particular address is the utility's own lookup to answer; your bill names it.

United States · Texas · electricity · Prices checked yesterday · 14 November 2026 · re-read daily

Electricity in ZIP 78584

ZIP 78584 is in Starr County, and the cheapest plan at 1,000 kWh a month on AEP Texas Central there is AP GAS & ELECTRIC (TX) LLC Simple Saver 3 at 5.7¢/kWh (18.5¢/kWh at 500 kWh, 11.8¢/kWh at 2,000 kWh; a bill credit or minimum-usage fee applies), as listed on Power to Choose on 2026-11-14.

Rank at500 kWh 1,000 kWh 2,000 kWh

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Who delivers here

Starr County
- AEP Texas Central · competitive delivery utility: you choose the retailer
- Magic Valley Electric Coop Inc · co-op, municipal or outside the competitive market: no retailer choice
- Medina Electric Coop, Inc · co-op, municipal or outside the competitive market: no retailer choice

Counties from the Census 2020 ZCTA-to-county file (largest land share first); utilities from EIA-861 2024 Service Territory, both read 2026-11-06.

Cheapest at 1,000 kWh on each zone here

1. AP GAS & ELECTRIC (TX) LLC · Simple Saver 3 on AEP Texas Central
5.7¢/kWh at 1,000 kWh
18.5¢/kWh at 500 kWh, 11.8¢/kWh at 2,000 kWh · bill credit at 1,000 kWh · fixed · 3 months
Go to AP GAS & ELECTRIC (TX) LLC
2. AP GAS & ELECTRIC (TX) LLC · SimpleSaver 12 on AEP Texas Central
5.9¢/kWh at 1,000 kWh
18.7¢/kWh at 500 kWh, 12.0¢/kWh at 2,000 kWh · bill credit at 1,000 kWh · fixed · 12 months
Go to AP GAS & ELECTRIC (TX) LLC
3. CHARIOT ENERGY · GridPlus 12 on AEP Texas Central
5.9¢/kWh at 1,000 kWh
18.8¢/kWh at 500 kWh, 12.0¢/kWh at 2,000 kWh · bill credit at 1,000 kWh · fixed · 12 months
Go to CHARIOT ENERGY
4. Express Energy · Flash Value 12 on AEP Texas Central
6.8¢/kWh at 1,000 kWh
19.6¢/kWh at 500 kWh, 12.9¢/kWh at 2,000 kWh · bill credit at 1,000 kWh · fixed · 12 months
Go to Express Energy
5. SPARK ENERGY LLC · Sure Saver 12 on AEP Texas Central
7.6¢/kWh at 1,000 kWh
17.9¢/kWh at 500 kWh, 12.4¢/kWh at 2,000 kWh · bill credit at 1,000 kWh · fixed · 12 months
Go to SPARK ENERGY LLC

Places in ZIP 78584

The Census records Roma, Escobares, North Escobares, La Minita, Fronton, Indio, Garceno, Lago Vista (Starr County), Salineño North, La Loma de Falcon, Fronton Ranchettes, Mesquite (Starr County), Sandoval, Moraida, San Juan (Starr County), Los Arrieros, Sunset (Starr County), Ramos, Regino Ramirez, J.F. Villareal, Jardin de San Julian, Pena, Guadalupe Guerra, H. Cuellar Estates, Loma Vista, Evergreen, Casas in ZIP 78584, in Starr County. The fuller page for this ZIP is Electricity in Roma.

Another ZIP

Which counties it is in and which delivery utilities serve them.