Groesbeck, Texas electricity: Oncor wires, 1 split ZIP code to check
Groesbeck, pop. 3,995, buys power over Oncor's lines; 1,559 homes here are on the competitive market.
Reviewed by Brent Ward, founder, on 2026-10-19. Updated .
Groesbeck at a glance: 1,559 Groesbeck-addressed homes, all wired by Oncor (ERCOT, Oct. 5, 2026). 1 split ZIP code (76642) holds 1,559 of Groesbeck's 1,559 placed homes (100%); those addresses need a lookup.
Groesbeck wires and choice
Oncor outages: oncor.com/outages. Oncor
1 split ZIP code (76642) holds 1,559 of Groesbeck's 1,559 placed homes (100%); those addresses need a lookup.
Non-choice utilities listed by EIA (2024) for Limestone: 3.
Moving to Groesbeck
Local numbers for setting up a home in Groesbeck, each checked on the official source. More contacts, and a printable list, are on Groesbeck helpful move-in information.
- City hall (ask about water service): City of Groesbeck: City Hall (main line), 254-729-3293.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Groesbeck ISD.
- Driver license: Texas DPS Driver License Office: Groesbeck, 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 Groesbeck 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 Groesbeck
Typical weather near Groesbeck, from the nearest NOAA station with a complete 1991-2020 record: Fairfield 3 W, about 24 miles from the city center (station elevation 432 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, 36°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 578 for the month, and heating-degree days (below 65°F) peak in January at 560. 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 | 58 | 36 | 3.7 | 2 | 560 |
| Feb | 61 | 40 | 3.5 | 8 | 412 |
| Mar | 69 | 47 | 3.8 | 24 | 255 |
| Apr | 76 | 54 | 3.3 | 93 | 90 |
| May | 82 | 64 | 4.7 | 256 | 8 |
| Jun | 89 | 70 | 4.5 | 432 | 0 |
| Jul | 94 | 73 | 1.8 | 567 | 0 |
| Aug | 95 | 72 | 2.9 | 578 | 0 |
| Sep | 88 | 66 | 3.2 | 367 | 4 |
| Oct | 79 | 56 | 4.2 | 146 | 70 |
| Nov | 68 | 45 | 3.9 | 27 | 283 |
| Dec | 60 | 38 | 4.1 | 7 | 512 |
Historical weather records for Limestone County
The Texas Railroad Commission's county table lists a record low of -5°F (1989) and a record high of 112°F (1909), and a regional estimate of 24 consecutive hours as a typical longest freezing or frozen-precipitation period for Limestone County. These are historical county extremes, not Groesbeck'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 Groesbeck, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00413047; Texas Railroad Commission, Historical Weather Data by County (2022).
Groesbeck electricity, in numbers and sources
- Land: 4.3 sq mi; 920 residents and 309 households per sq mi; 2.97 people per Groesbeck household. [Gazetteer; PEP; ACS]
- Heating fuel, Groesbeck homes (ACS 2020-2024): electricity 65.7% (±11), utility gas 33.8%; Limestone County overall: 66.8% electric. All-electric homes feel winter rates more. [ACS]
- Of Groesbeck homes paying a power bill, 38.9% report $250 or more a month and 18.7% under $100 (Limestone County: 32.7% at $250+). [ACS]
- Housing stock: 74.8% detached houses, 11.5% in 5+ unit buildings, 7.0% mobile homes; median year built 1979, 3.3% built 2010 or later. [ACS]
- ERCOT status split for 2,136 Groesbeck home meters (Oct. 5, 2026): active 1,559, inactive 318, de-energized 259; idle share 27.0%. [ERCOT]
- ACS 2020-2024: 8.5% of Groesbeck housing units vacant (±7), with 25.0% of vacant units held for seasonal use. Vacant homes keep meters that are not counted as households. [ACS]
- 76642 carries every one of Groesbeck's placed homes; ratio across the whole ZIP 0.70, from 1,559 home meters in all and 2,238 households. [ERCOT; ACS]
Groesbeck homes: heating fuel, bills, housing
| Groesbeck | Estimate |
|---|---|
| Heat with electricity | 65.7% |
| Heat with utility gas | 33.8% |
| Bill $250 or more | 38.9% |
| Built 2010 or later | 3.3% |
| Renter households | 38.9% |
| Median year built | 1979 |
ACS 2020-2024, the city (Census boundary). Bill rows are shares of homes that pay an electric bill.
Groesbeck meters and households
| Count | Groesbeck |
|---|---|
| Residents, July 2025 | 3,995 |
| Residents, 2020 base | 3,897 |
| Households (ACS) | 1,343 |
| Active home meters | 1,559 |
| Inactive home meters | 318 |
| De-energized home meters | 259 |
| Active small-business meters | 601 |
| Active large-business meters | 0 |
| Home meters per household | 1.16 |
| ZIP codes listed | 1 |
| Split ZIP codes | 1 |
| County | Limestone |
ERCOT report 203, Oct. 5, 2026 (Groesbeck postal city) and Census. CSV · Method
Groesbeck plan prices, October 19, 2026
Median fixed-rate Power to Choose listings. Oncor (170 listings): 14.1¢ / 13.4¢ / 13.2¢ per kWh at 500 / 1,000 / 2,000 kWh, delivery 6.8673¢ + $4.06/mo included. Not a quote.
Groesbeck ZIP codes, row by row
Not every address in these ZIP codes has retail choice; check your exact address.
| ZIP code | Groesbeck homes | All ZIP homes | Groesbeck share | ZIP households | Share of Groesbeck land | Meters per household | Flags |
|---|---|---|---|---|---|---|---|
| 76642 | 1,559 | 1,559 | 100% | 2,238 | 100% | 0.70 | split |
Groesbeck split ZIP codes: 76642.
Towns around Groesbeck
Groesbeck businesses
601 Groesbeck-addressed business meters; 0 large-class meters across its main ZIP codes (ERCOT). Request a business rate review.
Compare Groesbeck plans
Groesbeck questions
Do I get to pick my electric company in Groesbeck?
Mostly. ERCOT counts 1,559 competitive Groesbeck home meters, all on Oncor's system, against 1,343 households. Split: 76642. An address lookup settles it.
Do Groesbeck homes heat with electricity?
65.7% of Groesbeck homes heat with electricity (ACS 2020-2024, margin ±11) and 33.8% with utility gas; 38.9% of bill-paying homes report $250 or more a month. Electric-heat homes should compare plans at winter usage.
What ZIP code do most Groesbeck electricity customers have?
76642 (1,559 Groesbeck homes on the competitive market). Across the full ZIP: 0.70 meters per household, 1,559 home meters in all.
Who handles Groesbeck power outages?
Outages go to Oncor (oncor.com/outages), the wires utility for 1,559 Groesbeck competitive homes.
How do I set up power at a new Groesbeck home?
Check the address is on Oncor's wires, choose a plan and a start date. Groesbeck had 577 idle home meters (inactive or de-energized) on Oct. 5, 2026, so many move-ins reconnect an existing meter.
Near Groesbeck
Wires and county: Oncor · Limestone. Nearby pages: Bellmead (33 mi) · Fairfield (25 mi) · Lacy-Lakeview (35 mi) · Marlin (26 mi) · Mexia (11 mi) · Teague (16 mi)
No-choice areas · Methodology · Compare plans
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, tables B25040, B25132, B25024, B25034, B25035, B25018, B19013, B25003, B25002, B25004 (90% margins of error)
- 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)
- Census Bureau 2025 Gazetteer Files, Texas places (land and water area)
BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201. PUCT registration is not an endorsement.