ZIP 75252 is in Collin County and Dallas County, where EIA-861 records Oncor and TNMP beside 8 utilities whose customers cannot choose a retailer; the delivery utility on your bill decides which applies. Cheapest at 1,000 kWh: Oncor: AP GAS & ELECTRIC (TX) LLC Simple Saver 3 at 6.2¢/kWh (a bill credit or minimum-usage fee applies); TNMP: AP GAS & ELECTRIC (TX) LLC Simple Saver 3 at 8.0¢/kWh (a bill credit or minimum-usage fee applies), as listed on Power to Choose on 2026-11-13.
OpenStream is not yet registered as a broker with the PUCT and earns nothing from any retailer. How we are paid.
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.
The Census records Dallas in ZIP 75252, in Collin County and Dallas County.
Which counties it is in and which delivery utilities serve them.