Rowlett, Texas electricity: Oncor wires, 2 split ZIP codes to check
Most questions about electricity in Rowlett come down to two things: whose wires reach your street, and what plans on Oncor's system cost this month.
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: Every Rowlett-addressed home in ERCOT's competitive data is on Oncor's wires (26,540 active residential meters, October 5, 2026). Most Rowlett addresses can choose a retail provider, but 2 of the ZIP codes below are split, so check your exact address.
Who delivers electricity in Rowlett?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Rowlett choose an electricity provider?
Of the 26,540 Rowlett-addressed competitive homes we can place by ZIP code, 11,872 (45%) are in the split ZIP codes 75089, 75098; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.
EIA’s 2024 data lists 3 other utilities (co-ops, city-owned or outside ERCOT) in the counties around Rowlett; they are named on Dallas County · Rockwall County. Their customers can’t choose unless the utility opted in.
Moving to Rowlett
Local numbers for setting up a home in Rowlett, each checked on the official source. More contacts, and a printable list, are on Rowlett helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 972-412-6105.
- Trash pickup: Republic Services: trash and recycling, 972-422-2341.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Garland ISD, Rockwall ISD.
- Driver license: Texas DPS Driver License Office: Garland (Dallas Metro Area), 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 Rowlett 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 Rowlett
Typical weather near Rowlett, from the nearest NOAA station with a complete 1991-2020 record: Lavon Dam, about 9 miles from the city center (station elevation 510 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 93°F; January has the coolest average low, 34°F. Average daily highs reach 90°F or more in July 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 563 for the month, and heating-degree days (below 65°F) peak in January at 653. 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 | 54 | 34 | 2.6 | 1 | 653 |
| Feb | 58 | 38 | 2.7 | 3 | 474 |
| Mar | 65 | 46 | 3.5 | 19 | 306 |
| Apr | 73 | 53 | 3.7 | 63 | 117 |
| May | 80 | 63 | 4.7 | 217 | 19 |
| Jun | 88 | 70 | 4.1 | 429 | 0 |
| Jul | 92 | 73 | 1.9 | 552 | 0 |
| Aug | 93 | 73 | 2.2 | 563 | 0 |
| Sep | 87 | 66 | 3.1 | 345 | 6 |
| Oct | 77 | 55 | 4.4 | 111 | 87 |
| Nov | 65 | 45 | 3.4 | 15 | 325 |
| Dec | 56 | 36 | 3.5 | 2 | 589 |
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 Rowlett, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00415094.
What is different about electricity in Rowlett?
- Census estimates put Rowlett at 67,890 residents on July 1, 2025, up 8.5% from a 2020 estimates base of 62,550. Source: Census Bureau.
- Rowlett-addressed business meters number 2,093 in ERCOT's Oct. 5 extract, one for every 12.7 homes. Source: ERCOT TDSP.
- 54% of Rowlett-addressed competitive homes (14,294 of 26,540) are in ZIP 75088, where competitive meters run 1.31 per Census household. Source: ERCOT TDSP; Census ACS.
- Among the 30 cities and towns that touch Dallas County, Rowlett ranks 8 by competitive homes on its postal city in ERCOT's data, behind Dallas (535,270). Source: ERCOT TDSP.
Rowlett electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 67,890 |
| Population (2020 estimates base) | 62,550 |
| Occupied households (ACS 2020-2024) | 23,352 |
| Active residential meters with a Rowlett address | 26,540 |
| Active business meters with a Rowlett address | 2,093 |
| Residential meters per Census household | 1.14 |
| Delivery utilities (homes) | Oncor 26,540 |
| Counties | Dallas, Rockwall |
| ZIP codes touching Rowlett | 4 |
| Split ZIP codes (flagged below) | 2 |
How we built these numbers. Download: Rowlett ZIP table (CSV).
What do electricity plans cost in Rowlett 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) |
Rowlett 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 | Main postal cities (homes) | ZIP land inside Rowlett | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|
| 75087 | Rockwall 68%, Fate 29%, Rowlett 2% | 1% | 16,724 | 14,951 | 1.12 | Near-full coverage. Mostly outside Rowlett city limits. |
| 75098 | Wylie 98%, Saint Paul 2% | 2% | 14,352 | 21,449 | 0.67 | Split. Most homes, not all. Mostly outside Rowlett city limits. |
| 75088 | Rowlett 100% | 97% | 14,295 | 10,929 | 1.31 | Near-full coverage. |
| 75089 | Rowlett 100% | 90% | 11,872 | 12,036 | 0.99 | Split. Near-full coverage. Split: City of Garland (Garland city limits cover about 6% of the ZIP's land); that utility's customers can't choose. |
Split ZIP codes for Rowlett: 75089, 75098.
Homes, renters and electric bills in Rowlett’s ZIP codes
Among Rowlett’s main ZIP codes, 75089 has the largest share of households paying $250 or more a month for electricity (41.4%); 75088 has the most renters (26.2% of households); 75087 has the newest housing (8.0% built in 2020 or later).
How do towns near Rowlett compare?
Within about 28 miles; whole-place estimates.
| Town | Population | Distance | Delivery utility | Status | Competitive homes (postal city) |
|---|---|---|---|---|---|
| Sachse | 32,834 | 4 mi | Oncor | Most addresses can choose | 8,335 |
| Garland | 249,625 | 5 mi | Oncor | Partly; city utility serves the rest | 18,558 |
| Rockwall | 53,980 | 6 mi | Oncor | Most addresses can choose | 20,168 |
| Heath | 11,671 | 7 mi | Oncor | Most addresses can choose | 4,385 |
| Murphy | 20,985 | 8 mi | Oncor | Partly | 2,157 |
| Wylie | 63,842 | 8 mi | Oncor | Most addresses can choose | 14,016 |
Business electricity in Rowlett
ERCOT lists 2,093 active business meters with a Rowlett address, about one for every 12.7 homes, and 14 meters in ERCOT’s large non-residential class across Rowlett’s main ZIP codes.
Power Hopper compares offers from retail electric providers and direct suppliers for businesses. For high-consumption businesses, we can run a competitive bid so more than one supplier prices the same usage. 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 Rowlett?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Rowlett
Can Rowlett residents pick their own electric company?
For most addresses, yes: 26,540 homes with a Rowlett mailing address are on the competitive market in ERCOT's October 5, 2026 data, against 23,352 Census households in the city. 2 of the ZIP codes touching Rowlett are split (75089, 75098), so check your exact address.
What is the biggest Rowlett ZIP code for electricity customers?
75088. ERCOT lists 14,295 competitive residential meters there, 14,294 with a Rowlett address, against about 10,929 Census households in the ZIP (ratio 1.31).
Which part of Rowlett has the highest electric bills?
It varies by ZIP code. In the Census survey (ACS 2020-2024), 41.4% of households in 75089 reported paying $250 or more a month for electricity, the highest share among Rowlett's main ZIP codes, against 33.4% in 75088. Home size, age and heating type drive much of that, so compare plans at your own usage.
Who do I call in Rowlett when the power goes out?
Oncor, which delivers to all 26,540 Rowlett-addressed homes in ERCOT's competitive data, not your retail provider. oncor.com/outages.
Where to next?
Up: Oncor area · Dallas County · Rockwall County
Nearest town pages: Garland · Richardson · Mesquite · Plano · Allen · Princeton · McKinney · Frisco
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.