Collinsville, Texas electricity: Oncor wires, 1 split ZIP code to check
Collinsville, pop. 2,076, buys power over Oncor's lines; 891 homes here are on the competitive market.
Reviewed by Brent Ward, founder, on 2026-10-19. Updated .
Collinsville at a glance: 891 Collinsville-addressed homes, all wired by Oncor (ERCOT, Oct. 5, 2026). 1 split ZIP code (76233) holds 875 of Collinsville's 875 placed homes (100%); those addresses need a lookup.
Collinsville wires and choice
Oncor outages: oncor.com/outages. Oncor
1 split ZIP code (76233) holds 875 of Collinsville's 875 placed homes (100%); those addresses need a lookup.
Non-choice utilities listed by EIA (2024) for Grayson: 4.
Moving to Collinsville
Local numbers for setting up a home in Collinsville, each checked on the official source. More contacts, and a printable list, are on Collinsville helpful move-in information.
- City hall (ask about water service): Town of Collinsville: Town Hall (main line), 903-429-6225.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Collinsville ISD.
- Driver license: Texas DPS Driver License Office: Gainesville, 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 Collinsville 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 Collinsville
Typical weather near Collinsville, from the nearest NOAA station with a complete 1991-2020 record: Gainesville 5 ENE, about 11 miles from the city center (station elevation 870 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 94°F; January has the coolest average low, 32°F. Average daily highs reach 90°F or more in July to August. Average lows are at or below freezing in January.
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 567 for the month, and heating-degree days (below 65°F) peak in January at 709. 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 | 53 | 32 | 2.2 | 0 | 709 |
| Feb | 58 | 35 | 2.6 | 3 | 520 |
| Mar | 66 | 43 | 3.7 | 15 | 351 |
| Apr | 74 | 51 | 3.9 | 56 | 142 |
| May | 80 | 60 | 5.6 | 189 | 33 |
| Jun | 89 | 69 | 4.6 | 408 | 1 |
| Jul | 94 | 73 | 2.9 | 563 | 0 |
| Aug | 94 | 72 | 2.8 | 567 | 0 |
| Sep | 87 | 65 | 3.9 | 335 | 9 |
| Oct | 76 | 54 | 4.4 | 109 | 111 |
| Nov | 64 | 43 | 3.0 | 13 | 370 |
| Dec | 55 | 34 | 3.1 | 1 | 641 |
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 Collinsville, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00413420.
Collinsville electricity, in numbers and sources
- Land: 1.0 sq mi; 2,101 residents and 789 households per sq mi; 2.66 people per Collinsville household. [Gazetteer; PEP; ACS]
- Heating fuel, Collinsville homes (ACS 2020-2024): electricity 71.9% (±8), utility gas 24.6%, propane 2.8%; Grayson County overall: 60.0% electric. All-electric homes feel winter rates more. [ACS]
- Of Collinsville homes paying a power bill, 26.9% report $250 or more a month and 14.3% under $100 (Grayson County: 33.5% at $250+). [ACS]
- Housing stock: 72.6% detached houses, 9.8% mobile homes; median year built 1987, 25.3% built 2010 or later. [ACS]
- ERCOT status split for 1,073 Collinsville home meters (Oct. 5, 2026): active 891, inactive 111, de-energized 71; idle share 17.0%. [ERCOT]
- 76233 carries every one of Collinsville's placed homes; ratio across the whole ZIP 0.61, from 875 home meters in all and 1,443 households. [ERCOT; ACS]
- Weakest Collinsville ZIP: 76233, 0.61 competitive meters per household, 875 Collinsville-addressed. EIA (2024) lists 5 co-ops in its counties; co-op members stay with the co-op unless it opted in to competition. [ERCOT; ACS; EIA]
Collinsville homes: heating fuel, bills, housing
| Collinsville | Estimate |
|---|---|
| Heat with electricity | 71.9% |
| Heat with utility gas | 24.6% |
| Bill $250 or more | 26.9% |
| Built 2010 or later | 25.3% |
| Renter households | 39.4% |
| Median year built | 1987 |
ACS 2020-2024, the city (Census boundary). Bill rows are shares of homes that pay an electric bill.
Collinsville meters and households
| Count | Collinsville |
|---|---|
| Residents, July 2025 | 2,076 |
| Residents, 2020 base | 1,868 |
| Households (ACS) | 780 |
| Active home meters | 891 |
| Inactive home meters | 111 |
| De-energized home meters | 71 |
| Active small-business meters | 202 |
| Active large-business meters | 0 |
| Home meters per household | 1.14 |
| ZIP codes listed | 1 |
| Split ZIP codes | 1 |
| County | Grayson |
ERCOT report 203, Oct. 5, 2026 (Collinsville postal city) and Census. CSV · Method
Collinsville 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.
Collinsville ZIP codes, row by row
Not every address in these ZIP codes has retail choice; check your exact address.
| ZIP code | Collinsville homes | All ZIP homes | Collinsville share | ZIP households | Share of Collinsville land | Meters per household | Flags |
|---|---|---|---|---|---|---|---|
| 76233 | 875 | 875 | 100% | 1,443 | 100% | 0.61 | split |
Collinsville split ZIP codes: 76233.
Towns around Collinsville
| From Collinsville | Town (2,000+) | Homes vs Collinsville | Wires | Per household | Competitive homes |
|---|---|---|---|---|---|
| 7 mi | Whitesboro | 0.0× | — | 0.01 | 17 |
| 11 mi | Gunter | 0.7× | Oncor | 0.83 | 585 |
| 11 mi | Pilot Point | 2.9× | TNMP | 1.43 | 2,596 |
| 15 mi | Gainesville | 8.4× | Oncor | 1.06 | 7,445 |
| 17 mi | Sherman | 24.8× | Oncor | 1.21 | 22,105 |
| 17 mi | Howe | 1.2× | Oncor | 0.90 | 1,075 |
Collinsville businesses
202 Collinsville-addressed business meters; 0 large-class meters across its main ZIP codes (ERCOT). Request a business rate review.
Compare Collinsville plans
Collinsville questions
Is electricity deregulated in Collinsville?
Mostly. ERCOT counts 891 competitive Collinsville home meters, all on Oncor's system, against 780 households. Split: 76233. An address lookup settles it.
Do Collinsville homes heat with electricity?
71.9% of Collinsville homes heat with electricity (ACS 2020-2024, margin ±8) and 24.6% with utility gas; 26.9% of bill-paying homes report $250 or more a month. Electric-heat homes should compare plans at winter usage.
Which ZIP code covers most of Collinsville?
76233: 875 Collinsville-addressed competitive homes; ratio 0.61 across the ZIP (875 home meters in all, 1,443 households).
Who do I call when the power is out in Collinsville?
Outages go to Oncor (oncor.com/outages), the wires utility for 891 Collinsville competitive homes.
Moving to Collinsville: how do I start electricity?
Check the address is on Oncor's wires, choose a plan and a start date. Collinsville had 182 idle home meters (inactive or de-energized) on Oct. 5, 2026, so many move-ins reconnect an existing meter.
Near Collinsville
Wires and county: Oncor · Grayson. Nearby pages: Aubrey (18 mi) · Gainesville (15 mi) · Gunter (11 mi) · Howe (17 mi) · Pilot Point (11 mi) · Sherman (17 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.