Southlake, Texas electricity: only part of town can choose a provider
Part of Southlake is on the competitive market and part isn't, so the first question for any Southlake address is whether Oncor or another utility serves it.
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 5,503 active residential meters with a Southlake address, all on Oncor's wires (October 5, 2026). Only part of Southlake is on the competitive market; the Census counts about 9,229 households in the city. Many of the rest likely get power from an electric co-op or another utility without retail choice, so check your exact address.
Who delivers electricity in Southlake?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Southlake choose an electricity provider?
5,503 of 5,503 Southlake-addressed competitive homes (100%) are in split ZIP codes (76092), where a neighbor may have a different utility.
5 more utilities (co-op, city-owned or non-ERCOT; EIA 2024) also serve parts of Tarrant County · Denton County; no retail choice there unless the utility opted in.
Moving to Southlake
Local numbers for setting up a home in Southlake, each checked on the official source. More contacts, and a printable list, are on Southlake helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 817-748-8051.
- Trash pickup: Community Waste Disposal (CWD): trash and recycling, 972-392-9300.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Carroll ISD, Northwest ISD, Keller ISD.
- Driver license: Texas DPS Driver License Office: Flower Mound, 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 Southlake 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 Southlake
Typical weather near Southlake, from the nearest NOAA station with a complete 1991-2020 record: Grapevine Dam, about 5 miles from the city center (station elevation 585 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 96°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 614 for the month, and heating-degree days (below 65°F) peak in January at 625. 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 | 56 | 34 | 2.6 | 2 | 625 |
| Feb | 60 | 38 | 2.7 | 5 | 444 |
| Mar | 68 | 45 | 3.6 | 28 | 290 |
| Apr | 75 | 54 | 3.5 | 84 | 102 |
| May | 83 | 63 | 4.7 | 255 | 18 |
| Jun | 91 | 71 | 3.8 | 479 | 0 |
| Jul | 95 | 74 | 2.3 | 611 | 0 |
| Aug | 96 | 74 | 2.1 | 614 | 0 |
| Sep | 89 | 67 | 3.5 | 385 | 6 |
| Oct | 78 | 55 | 4.5 | 140 | 86 |
| Nov | 66 | 45 | 2.8 | 21 | 306 |
| Dec | 58 | 36 | 2.9 | 3 | 561 |
Historical weather records for Tarrant County
The Texas Railroad Commission's county table lists a record low of -12°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 for Tarrant County. These are historical county extremes, not Southlake'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 Southlake, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00413691; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Southlake?
- Population: 31,272 (2020 base) to 31,175 (July 2025), -0.3%, per Census Vintage 2025 estimates. The largest one-year change was -276 people, from July 2024 to July 2025. (Census)
- Southlake's postal city carries 5,503 competitive homes, fewer than the city's 9,229 Census households (ratio 0.6). Part of that gap is Southlake homes with a neighboring city's mailing address; part fits co-op or city-utility service. (ERCOT, Census)
- Southlake-addressed homes make up 0.2% of the 3,564,530 residential meters on Oncor's competitive system. (ERCOT)
- 171 of the 5,774 home meters in Southlake's main ZIP codes (3.0%) were de-energized on October 5, 2026, typically a vacant unit awaiting its next account. (ERCOT)
- Nearly all Southlake-addressed competitive homes (5,503) are in one ZIP code, 76092, which it shares with Grapevine (81 homes). ZIP-wide, ERCOT counts 5,603 competitive meters for 9,366 Census households, a 0.60 ratio. (ERCOT, Census)
- In ZIP 76092, which holds 5,503 Southlake-addressed homes, ERCOT counts only 0.60 competitive meters per Census household. EIA's 2024 data lists Cooke County Electric Cooperative Assn, Denton County Electric Cooperative, and Tri-County Electric Cooperative among others in the counties ERCOT and the Census link to that ZIP; their customers are not on the competitive market unless the utility opted in. (ERCOT, Census, EIA-861)
- In 76092, the ZIP holding most Southlake homes, the ACS 2020-2024 survey finds a median household income of $250,001, 5.4% renters and 67.8% of households with $250+ monthly electric bills. (Census)
- Of Southlake's six nearest towns, Grapevine has the most competitive homes (23,565, 4 mi away) and Keller the fewest per household (0.40). (ERCOT, Census)
Southlake electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 31,175 |
| Population (2020 estimates base) | 31,272 |
| Occupied households (ACS 2020-2024) | 9,229 |
| Active residential meters with a Southlake address | 5,503 |
| Active business meters with a Southlake address | 1,541 |
| Residential meters per Census household | 0.6 |
| Delivery utilities (homes) | Oncor 5,503 |
| Counties | Tarrant, Denton |
| ZIP codes touching Southlake | 1 |
| Split ZIP codes (flagged below) | 1 |
How we built these numbers. Download: Southlake ZIP table (CSV).
What do electricity plans cost in Southlake 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) |
Southlake 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 | Southlake homes | Land in Southlake | Postal cities | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|---|
| 76092 | 5,503 | 96% | Southlake 98%, Grapevine 1% | 5,603 | 9,366 | 0.60 | Split. Most homes, not all. |
Split ZIP codes for Southlake: 76092.
Homes, renters and electric bills in Southlake’s ZIP codes
$250+ monthly electric bills peak in 76092 (67.8% of households).
| ZIP | Southlake homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 76092 | 5,503 | $250,001 | 5.4% | 2.7% | 67.8% | 2.6% | 2 | 0 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
How do towns near Southlake compare?
| Town (2,000+ people) | Miles | Competitive homes | Per household | Utility | Status |
|---|---|---|---|---|---|
| Trophy Club | 3 mi | 5,003 | 1.05 | Oncor | Most addresses can choose |
| Westlake | 4 mi | 0 | n/a | Oncor | Partly |
| Colleyville | 4 mi | 8,324 | 0.92 | Oncor | Most addresses can choose |
| Grapevine | 4 mi | 23,565 | 1.09 | Oncor | Most addresses can choose |
| Keller | 5 mi | 6,576 | 0.40 | Oncor | Partly |
| Flower Mound | 6 mi | 11,965 | 0.43 | Oncor | Partly |
Business electricity in Southlake
Southlake business meters: 1,541 (3.6 homes per business meter); large non-residential meters in Southlake’s main ZIP codes: 1 (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 Southlake?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Southlake
Can I choose my electricity provider in Southlake?
Some can: 5,503 Southlake-addressed homes are on the competitive market, against about 9,229 city households. Many others likely belong to an electric co-op and can't choose. Split ZIP codes for Southlake: 76092; on those, check the exact address.
Which Southlake ZIP code has the most homes on the competitive market?
76092, with 5,603 competitive homes in ERCOT's data (5,503 addressed to Southlake) against roughly 9,366 Census households, a 0.60 ratio.
How many businesses in Southlake are on the competitive electricity market?
Yes, where Oncor delivers: 1,541 Southlake-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 Southlake. How do I set up electricity?
Start with the address check: Oncor-delivered Southlake homes choose among the plans offered there and set a start date. Turnover is real in 76092, where 10.5% moved in the past year (ACS).
Where do I report a Southlake power outage?
Call Oncor (oncor.com/outages), the wires utility for Southlake's 5,503 competitive homes; a retail provider can't fix lines. Co-op members report outages to their co-op.
Where to next?
Up: Oncor area · Tarrant County · Denton County
Nearest town pages: Trophy Club · Colleyville · Grapevine · Keller · Flower Mound · Roanoke · Bedford · North Richland Hills
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.