Glenn Heights, Texas electricity: only part of town can choose a provider
Two questions decide electricity in Glenn Heights: whose wires reach your street, and what plans on Oncor's system cost right now. This page answers both from ERCOT, Census and PUCT data.
Last updated . Written by Power Hopper. Reviewed by Brent Ward, founder, on 2026-10-19. Data as of October 5, 2026 (meters) and October 19, 2026 (plan prices).
In short: ERCOT counts 3,535 active residential meters with a Glenn Heights address, all on Oncor's wires (October 5, 2026). Our data can't give a firm Glenn Heights-wide figure: only 3,535 competitive homes carry a Glenn Heights mailing address, against about 5,950 Census households, because many Glenn Heights homes use neighboring postal cities. The ZIP codes covering Glenn Heights average about 0.87 competitive meters per Census household, so most streets on Oncor's wires can choose. Check your exact address.
Who delivers electricity in Glenn Heights?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Glenn Heights choose an electricity provider?
None of the ZIP codes holding Glenn Heights's 3,528 competitive homes is flagged split, so most Glenn Heights streets can shop.
5 more utilities (co-op, city-owned or non-ERCOT; EIA 2024) also serve parts of Ellis County · Dallas County; no retail choice there unless the utility opted in.
Moving to Glenn Heights
Local numbers for setting up a home in Glenn Heights, each checked on the official source. More contacts, and a printable list, are on Glenn Heights helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 972-223-1690.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Desoto ISD, Red Oak ISD.
- Driver license: Texas DPS Driver License Office: Dallas-South Mega Center, 512-424-2600.
You enter your address on the next screen, and we confirm there whether you can choose an electricity provider at that address.
Have a High Light Bill or Electric Bill?
If your electricity bill in Glenn Heights came in higher than you expected, upload or enter it and see whether another plan could lower your electricity costs, or whether staying where you are makes more sense.
Weather and electricity in Glenn Heights
Typical weather near Glenn Heights, from the nearest NOAA station with a complete 1991-2020 record: Waxahachie, about 9 miles from the city center (station elevation 626 ft). These are normals for that station, not readings at your address. August is the warmest month on average, with a normal daily high of 95°F; January has the coolest average low, 34°F. Average daily highs reach 90°F or more in June to August. No month averages a daily low at or below freezing.
For electricity, the normals point to two seasons that can lift a household's usage: cooling-degree days (a measure of how far each day's mean temperature sits above 65°F) peak in August at 604 for the month, and heating-degree days (below 65°F) peak in January at 615. How much that matters to a bill depends on the home, its insulation, its heating fuel and the household, so use your own usage history, not a regional average, when you compare plans.
| Month | Avg high °F | Avg low °F | Precipitation (in) | Cooling degree-days | Heating degree-days |
|---|---|---|---|---|---|
| Jan | 57 | 34 | 2.6 | 1 | 615 |
| Feb | 60 | 38 | 2.7 | 3 | 458 |
| Mar | 67 | 45 | 4.0 | 17 | 291 |
| Apr | 75 | 53 | 3.5 | 74 | 102 |
| May | 82 | 63 | 4.3 | 248 | 13 |
| Jun | 90 | 71 | 4.2 | 468 | 0 |
| Jul | 95 | 74 | 2.5 | 598 | 0 |
| Aug | 95 | 74 | 2.9 | 604 | 0 |
| Sep | 88 | 67 | 3.3 | 382 | 4 |
| Oct | 78 | 55 | 4.7 | 126 | 75 |
| Nov | 66 | 44 | 2.9 | 18 | 309 |
| Dec | 58 | 36 | 3.2 | 3 | 564 |
Historical weather records for Dallas and Ellis counties
Glenn Heights lies in Dallas and Ellis counties. The Texas Railroad Commission's county table lists, for each county:
- Dallas County: a record low of -10°F (1899) and a record high of 115°F (1909), and a regional estimate of 30 consecutive hours as a typical longest freezing or frozen-precipitation period.
- Ellis County: a record low of -13°F (2011) and a record high of 115°F (1909), and a regional estimate of 24 consecutive hours as a typical longest freezing or frozen-precipitation period.
These are historical county extremes, not Glenn Heights's monthly averages and not a forecast; the normals above describe ordinary months.
Reference only: the U.S. Energy Information Administration's 2020 Residential Energy Consumption Survey puts the average Texas household at about 13,440 kWh a year (about 1,120 kWh a month if spread evenly). That is a statewide average for 2020, not Glenn Heights, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00419522; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Glenn Heights?
- Only 3,535 competitive residential meters carry a Glenn Heights mailing address, against 5,950 Census households in the city (ratio 0.59). Most of that gap is Glenn Heights homes with a neighboring city's mailing address: the ZIP codes covering Glenn Heights average 0.87 competitive meters per household. (ERCOT, Census)
- The Census Bureau's July 1, 2025 estimate for Glenn Heights is 20,327 people, up 28.2% on the 2020 estimates base of 15,854. The largest one-year change was +1,191 people, from July 2021 to July 2022. (Census)
- From Oct. 7 to Oct. 18, 2026, 19 residential meters in Glenn Heights's main ZIP codes went from vacant to active in ERCOT's daily files, which usually means a move-in. (ERCOT)
- Glenn Heights's main ZIP codes: 14,965 active and 977 de-energized residential meters (6.1% de-energized, usually empty or between tenants). (ERCOT)
- Nearly all Glenn Heights-addressed competitive homes (3,528) are in one ZIP code, 75154, which it shares with Red Oak (9,275 homes) and Ovilla (1,812 homes). ZIP-wide, ERCOT counts 14,965 competitive meters for 17,266 Census households, a 0.87 ratio. (ERCOT, Census)
- By competitive homes on its postal city, Glenn Heights is number 8 of the 20 cities and towns touching Ellis County, just behind Red Oak (9,507). (ERCOT)
- In 75154, the ZIP holding most Glenn Heights homes, the ACS 2020-2024 survey finds a median household income of $100,388, 17.8% renters and 45.3% of households with $250+ monthly electric bills. (Census)
- Nearby, Duncanville (7 mi) has 1.04 competitive homes per household, while DeSoto counts 21,968 on its postal city. (ERCOT, Census)
Glenn Heights electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 20,327 |
| Population (2020 estimates base) | 15,854 |
| Occupied households (ACS 2020-2024) | 5,950 |
| Active residential meters with a Glenn Heights address | 3,535 |
| Active business meters with a Glenn Heights address | 161 |
| Residential meters per Census household | 0.59 |
| Delivery utilities (homes) | Oncor 3,535 |
| Counties | Ellis, Dallas |
| ZIP codes touching Glenn Heights | 1 |
| Split ZIP codes (flagged below) | 0 |
How we built these numbers. Download: Glenn Heights ZIP table (CSV).
What do electricity plans cost in Glenn Heights right now?
Same-day medians for Oncor’s area (Oncor: 170 listings), delivery included; not a quote.
| Delivery utility | 500 kWh | 1,000 kWh | 2,000 kWh | Delivery charge |
|---|---|---|---|---|
| Oncor | 14.1¢ | 13.4¢ | 13.2¢ | 6.8673¢/kWh + $4.06/mo (effective October 4, 2026; tariff) |
Glenn Heights ZIP codes: how much of each is on the competitive market?
Not every address in these ZIP codes has retail choice; check your exact address.
| ZIP | Glenn Heights homes | Land in Glenn Heights | Postal cities | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|---|
| 75154 | 3,528 | 15% | Red Oak 62%, Glenn Heights 24%, Ovilla 12% | 14,965 | 17,266 | 0.87 | Near-full coverage. |
Split ZIP codes for Glenn Heights: none flagged.
Homes, renters and electric bills in Glenn Heights’s ZIP codes
$250+ monthly electric bills peak in 75154 (45.3% of households); post-2020 homes in 75154 (10.5%).
| ZIP | Glenn Heights homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 75154 | 3,528 | $100,388 | 17.8% | 4.8% | 45.3% | 10.5% | 4 | 19 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
How do towns near Glenn Heights compare?
| Town (2,000+ people) | Miles | Competitive homes | Per household | Utility | Status |
|---|---|---|---|---|---|
| Ovilla | 2 mi | 1,905 | 1.31 | Oncor | Most addresses can choose |
| DeSoto | 3 mi | 21,968 | 1.06 | Oncor | Most addresses can choose |
| Red Oak | 5 mi | 9,507 | 1.78 | Oncor | Most addresses can choose |
| Lancaster | 6 mi | 16,093 | 1.09 | Oncor | Most addresses can choose |
| Cedar Hill | 6 mi | 18,109 | 1.09 | Oncor | Most addresses can choose |
| Duncanville | 7 mi | 13,768 | 1.04 | Oncor | Most addresses can choose |
Business electricity in Glenn Heights
Glenn Heights business meters: 161 (22.0 homes per business meter); large non-residential meters in Glenn Heights’s main ZIP codes: 8 (ERCOT, October 5, 2026).
We compare retail providers and direct suppliers and can bid out high-consumption accounts, but we can’t promise savings or how many suppliers will bid. Businesses in Texas retail-choice areas can request a rate review online.
How do I compare electricity plans in Glenn Heights?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Glenn Heights
Is Glenn Heights deregulated for electricity?
Mostly, if Oncor delivers to your address. Only 3,535 homes in ERCOT's data carry a Glenn Heights mailing address, against about 5,950 Census households in the city, because many Glenn Heights homes use neighboring postal cities; the ZIP codes covering Glenn Heights are mostly on the competitive market. None of Glenn Heights's ZIP codes is flagged split, though an address check is still the only sure answer.
Where do most Glenn Heights electricity customers live?
ZIP 75154: 3,528 of its 14,965 competitive residential meters use a Glenn Heights address, and the ZIP has about 17,266 Census households (ratio 0.87).
How many businesses in Glenn Heights are on the competitive electricity market?
Yes, where Oncor delivers: 161 Glenn Heights-addressed business meters are on the competitive market in ERCOT's data, and large accounts can also buy from commercial suppliers directly.
I'm moving to Glenn Heights. How do I set up electricity?
10.0% of 75154 residents moved within a year (ACS), and 19 75154 meters turned from vacant to active Oct. 7-18, 2026. Check that your Glenn Heights address is on Oncor's wires, then choose a plan and start date.
Why does my Glenn Heights home have a Red Oak address?
Because ZIP 75154 is mostly addressed to Red Oak: 62% of its 14,965 competitive residential meters use that postal city, and 24% use Glenn Heights. Mailing city isn't city limits; the service address decides the utility.
Where do I report a Glenn Heights power outage?
Oncor, at oncor.com/outages: it carries power to all 3,535 Glenn Heights-addressed competitive homes, whatever retail provider bills them. Co-op members report outages to their co-op.
Where to next?
Up: Oncor area · Ellis County · Dallas County
Nearest town pages: DeSoto · Red Oak · Lancaster · Cedar Hill · Duncanville · Midlothian · Waxahachie · Grand Prairie
Compare plans · Moving · High bill · Texas rates · Areas without retail choice · Methodology
Sources
- ERCOT TDSP ESIID Extract (report 203): full extract as of Oct 5, 2026; daily files Oct 7-18, 2026
- Census ACS 2020-2024 5-year estimates (B25003 households, B01003 population)
- Census Vintage 2025 city and town population estimates
- Census 2020 ZCTA-to-place and ZCTA-to-county relationship files
- EIA-861 (2024) utility service territories by county
- PUCT Power to Choose residential offer export, Oct 19, 2026, 7:59 AM CT
- PUCT: Choosing an Electric Plan
- PUCT broker directory (BR260201)
- Oncor Electric Delivery
- Oncor delivery tariff (effective October 4, 2026)
BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201. PUCT registration is not an endorsement.