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

Electricity in ZIP 79778

ZIP 79778 is in Upton County, where EIA-861 records Oncor and AEP Texas North 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 North: Companion Energy Companion Pro + Perks 3 at 10.1¢/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

  • Upton County
    • Southwest Texas Elec Coop, Inc · co-op, municipal or outside the competitive market: no retailer choice
    • AEP Texas North · competitive delivery utility: you choose the retailer
    • 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. Companion Energy · Companion Pro + Perks 3 on AEP Texas North
    10.1¢/kWh at 500 kWh
    9.7¢/kWh at 1,000 kWh, 9.6¢/kWh at 2,000 kWh · fixed · 3 months
    Go to Companion Energy
  7. 2. FRONTIER UTILITIES · Frontier Power Saver 3 on AEP Texas North
    10.1¢/kWh at 500 kWh
    9.7¢/kWh at 1,000 kWh, 9.6¢/kWh at 2,000 kWh · fixed · 3 months
    Go to FRONTIER UTILITIES
  8. 3. GEXA ENERGY · Gexa Eco Choice 3 on AEP Texas North
    10.1¢/kWh at 500 kWh
    9.7¢/kWh at 1,000 kWh, 9.6¢/kWh at 2,000 kWh · fixed · 3 months
    Go to GEXA ENERGY
  9. 4. Energy Texas · No Bull 6 on AEP Texas North
    10.1¢/kWh at 500 kWh
    10.2¢/kWh at 1,000 kWh, 10.3¢/kWh at 2,000 kWh · fixed · 6 months
    Go to Energy Texas
  10. 5. RHYTHM · Digital Choice 6 on AEP Texas North
    10.1¢/kWh at 500 kWh
    10.2¢/kWh at 1,000 kWh, 10.3¢/kWh at 2,000 kWh · fixed · 6 months
    Go to RHYTHM

Places in ZIP 79778

The Census records Rankin in ZIP 79778, in Upton County. The fuller page for this ZIP is Electricity in Rankin.

RankinUpton CountyEvery plan on OncorEvery plan on AEP Texas North

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.