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

Electricity in ZIP 78570

ZIP 78570 is in Hidalgo County, where EIA-861 records Oncor and AEP Texas Central beside 1 utility whose customers cannot choose a retailer; the delivery utility on your bill decides which applies. Cheapest at 500 kWh: Oncor: Companion Energy Companion Pro + Perks 3 at 10.5¢/kWh; AEP Texas Central: Ranchero Power No Contract Advantage at 9.5¢/kWh, as listed on Power to Choose on 2026-11-14.

Rank at500 kWh1,000 kWh2,000 kWh

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Who delivers here

  • Hidalgo 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
    • Oncor · competitive delivery utility: you choose the retailer

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 500 kWh on each zone here

  1. 1. Companion Energy · Companion Pro + Perks 3 on Oncor
    10.5¢/kWh at 500 kWh
    10.1¢/kWh at 1,000 kWh, 9.9¢/kWh at 2,000 kWh · fixed · 3 months
    Go to Companion Energy
  2. 2. FRONTIER UTILITIES · Frontier Power Saver 3 on Oncor
    10.5¢/kWh at 500 kWh
    10.1¢/kWh at 1,000 kWh, 9.9¢/kWh at 2,000 kWh · fixed · 3 months
    Go to FRONTIER UTILITIES
  3. 3. GEXA ENERGY · Gexa Eco Choice 3 on Oncor
    10.5¢/kWh at 500 kWh
    10.1¢/kWh at 1,000 kWh, 9.9¢/kWh at 2,000 kWh · fixed · 3 months
    Go to GEXA ENERGY
  4. 4. JUST ENERGY · Sustainable Living Bundle - 3 on Oncor
    10.8¢/kWh at 500 kWh
    10.0¢/kWh at 1,000 kWh, 9.6¢/kWh at 2,000 kWh · fixed · 3 months
    Go to JUST ENERGY
  5. 5. Ranchero Power · No Contract Advantage on Oncor
    10.9¢/kWh at 500 kWh
    9.9¢/kWh at 1,000 kWh, 9.5¢/kWh at 2,000 kWh · variable · 1 months
    Go to Ranchero Power
  6. 1. Ranchero Power · No Contract Advantage on AEP Texas Central
    9.5¢/kWh at 500 kWh
    8.6¢/kWh at 1,000 kWh, 8.2¢/kWh at 2,000 kWh · variable · 1 months
    Go to Ranchero Power
  7. 2. SOUTHERN FEDERAL POWER LLC · Variable Advantage on AEP Texas Central
    9.5¢/kWh at 500 kWh
    8.6¢/kWh at 1,000 kWh, 8.2¢/kWh at 2,000 kWh · variable · 1 months
    Go to SOUTHERN FEDERAL POWER LLC
  8. 3. Octopus Energy · Octo Simple 3 on AEP Texas Central
    9.5¢/kWh at 500 kWh
    9.7¢/kWh at 1,000 kWh, 9.8¢/kWh at 2,000 kWh · fixed · 3 months
    Go to Octopus Energy
  9. 4. INFUSE ENERGY · Essential Infusion Flex on AEP Texas Central
    9.9¢/kWh at 500 kWh
    9.3¢/kWh at 1,000 kWh, 9.1¢/kWh at 2,000 kWh · variable · 1 months
    Go to INFUSE ENERGY
  10. 5. Companion Energy · Companion Pro + Perks 3 on AEP Texas Central
    9.9¢/kWh at 500 kWh
    9.5¢/kWh at 1,000 kWh, 9.4¢/kWh at 2,000 kWh · fixed · 3 months
    Go to Companion Energy

Places in ZIP 78570

The Census records Mercedes, Heidelberg, Indian Hills, Mila Doce, Relampago, Laguna Seca in ZIP 78570, in Hidalgo County.

MercedesHeidelbergIndian HillsMila DoceRelampagoLaguna SecaHidalgo CountyEvery plan on OncorEvery plan on AEP Texas Central

Another ZIP

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

Says which counties the ZIP is in and which delivery utilities serve them, from the Census and EIA-861. Which one serves your address is on your bill.