Sullivan City, Texas electricity: AEP Texas Central wires and 2,274 competitive homes
AEP Texas Central wires and 2,274 competitive homes: the Sullivan City numbers.
Reviewed by Brent Ward, founder, on 2026-10-19. Updated .
Sullivan City at a glance: 2,274 Sullivan City-addressed homes, all wired by AEP Texas Central (ERCOT, Oct. 5, 2026). Sullivan City's 2,269 placed homes sit in unsplit ZIP codes; a lookup still confirms each address.
Sullivan City wires and choice
AEP Texas Central outages: aeptexas.com/outages. AEP Texas Central
Sullivan City's 2,269 placed homes sit in unsplit ZIP codes; a lookup still confirms each address.
Non-choice utilities listed by EIA (2024) for Hidalgo: 1.
Moving to Sullivan City
Local numbers for setting up a home in Sullivan City, each checked on the official source. More contacts, and a printable list, are on Sullivan City helpful move-in information.
- City hall (ask about water service): City of Sullivan City: City Hall (main line), 956-485-2828.
- Public schools: La Joya ISD.
- Driver license: Texas DPS Driver License Office: Mission, 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 Sullivan City 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 Sullivan City
Typical weather near Sullivan City, from the nearest NOAA station with a complete 1991-2020 record: La Joya, about 15 miles from the city center (station elevation 213 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 97°F; January has the coolest average low, 47°F. Average daily highs reach 90°F or more in June to September. 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 648 for the month, and heating-degree days (below 65°F) peak in January at 257. 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 | 69 | 47 | 0.8 | 38 | 257 |
| Feb | 74 | 51 | 0.9 | 79 | 146 |
| Mar | 79 | 57 | 1.4 | 168 | 65 |
| Apr | 85 | 63 | 1.7 | 278 | 14 |
| May | 90 | 70 | 1.9 | 461 | 1 |
| Jun | 95 | 74 | 2.0 | 582 | 0 |
| Jul | 95 | 75 | 2.2 | 622 | 0 |
| Aug | 97 | 75 | 1.2 | 648 | 0 |
| Sep | 92 | 71 | 3.5 | 498 | 0 |
| Oct | 87 | 64 | 2.2 | 320 | 9 |
| Nov | 78 | 55 | 1.1 | 129 | 80 |
| Dec | 71 | 48 | 1.4 | 53 | 226 |
Historical weather records for Hidalgo County
The Texas Railroad Commission's county table lists a record low of 10°F (1962) and a record high of 113°F (1998), and a regional estimate of 12 consecutive hours as a typical longest freezing or frozen-precipitation period for Hidalgo County. These are historical county extremes, not Sullivan City'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 Sullivan City, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00414911; Texas Railroad Commission, Historical Weather Data by County (2022).
Sullivan City electricity, in numbers and sources
- Land: 3.6 sq mi; 1,084 residents and 323 households per sq mi; 3.35 people per Sullivan City household. [Gazetteer; PEP; ACS]
- Heating fuel, Sullivan City homes (ACS 2020-2024): electricity 95.9% (±4), utility gas 0.0%, propane 3.4%; Hidalgo County overall: 90.6% electric. All-electric homes feel winter rates more. [ACS]
- Of Sullivan City homes paying a power bill, 38.2% report $250 or more a month and 3.1% under $100 (Hidalgo County: 26.9% at $250+). [ACS]
- Housing stock: 89.8% detached houses, 6.1% mobile homes; median year built 1997, 12.4% built 2010 or later. [ACS]
- ERCOT status split for 3,396 Sullivan City home meters (Oct. 5, 2026): active 2,274, inactive 683, de-energized 439; idle share 33.0%. [ERCOT]
- ACS 2020-2024: 10.6% of Sullivan City housing units vacant (±4), with 23.4% of vacant units held for seasonal use. Vacant homes keep meters that are not counted as households. [ACS]
- 2,274 home meters use the Sullivan City postal name, against 1,160 households inside city limits (1.96 per household): the mailing area runs well past the boundary. [ERCOT; ACS]
- 78595 carries every one of Sullivan City's placed homes; ratio across the whole ZIP 1.24, from 2,270 home meters in all and 1,826 households. [ERCOT; ACS]
Sullivan City homes: heating fuel, bills, housing
| Sullivan City | Estimate |
|---|---|
| Heat with electricity | 95.9% |
| Heat with utility gas | 0.0% |
| Bill $250 or more | 38.2% |
| Built 2010 or later | 12.4% |
| Renter households | 12.2% |
| Median year built | 1997 |
ACS 2020-2024, the city (Census boundary). Bill rows are shares of homes that pay an electric bill.
Sullivan City meters and households
| Count | Sullivan City |
|---|---|
| Residents, July 2025 | 3,891 |
| Residents, 2020 base | 3,903 |
| Households (ACS) | 1,160 |
| Active home meters | 2,274 |
| Inactive home meters | 683 |
| De-energized home meters | 439 |
| Active small-business meters | 262 |
| Active large-business meters | 0 |
| Home meters per household | 1.96 |
| ZIP codes listed | 1 |
| Split ZIP codes | 0 |
| County | Hidalgo |
ERCOT report 203, Oct. 5, 2026 (Sullivan City postal city) and Census. CSV · Method
Sullivan City plan prices, October 19, 2026
Median fixed-rate Power to Choose listings. AEP Texas Central (164 listings): 12.7¢ / 12.1¢ / 12¢ per kWh at 500 / 1,000 / 2,000 kWh, delivery 5.6898¢ + $3.24/mo included. Not a quote.
Sullivan City ZIP codes, row by row
Not every address in these ZIP codes has retail choice; check your exact address.
| ZIP code | Sullivan City homes | All ZIP homes | Sullivan City share | ZIP households | Share of Sullivan City land | Meters per household | Flags |
|---|---|---|---|---|---|---|---|
| 78595 | 2,269 | 2,270 | 100% | 1,826 | 99% | 1.24 | none |
Sullivan City split ZIP codes: none.
Towns around Sullivan City
| From Sullivan City | Town (2,000+) | Homes vs Sullivan City | Wires | Per household | Competitive homes |
|---|---|---|---|---|---|
| 6 mi | La Joya | 0.9× | AEP Texas Central | 1.39 | 2,033 |
| 8 mi | Penitas | 1.8× | AEP Texas Central | 2.24 | 4,058 |
| 12 mi | Palmview | 2.1× | AEP Texas Central | 0.95 | 4,721 |
| 16 mi | Mission | 18.9× | AEP Texas Central | 1.49 | 42,908 |
| 16 mi | Alton | 1.0× | AEP Texas Central | 0.43 | 2,317 |
| 17 mi | Palmhurst | 0.3× | AEP Texas Central | 0.88 | 688 |
Sullivan City businesses
262 Sullivan City-addressed business meters; 0 large-class meters across its main ZIP codes (ERCOT). Request a business rate review.
Compare Sullivan City plans
Sullivan City questions
Do I get to pick my electric company in Sullivan City?
Mostly. ERCOT counts 2,274 competitive Sullivan City home meters, all on AEP Texas Central's system, against 1,160 households. An address lookup settles it.
Do Sullivan City homes heat with electricity?
95.9% of Sullivan City homes heat with electricity (ACS 2020-2024, margin ±4) and 0.0% with utility gas; 38.2% 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 Sullivan City?
78595 (2,269 Sullivan City homes on the competitive market). Across the full ZIP: 1.24 meters per household, 2,270 home meters in all.
Who handles Sullivan City power outages?
Outages go to AEP Texas Central (aeptexas.com/outages), the wires utility for 2,274 Sullivan City competitive homes.
How do I set up power at a new Sullivan City home?
Check the address is on AEP Texas Central's wires, choose a plan and a start date. Sullivan City had 1,122 idle home meters (inactive or de-energized) on Oct. 5, 2026, so many move-ins reconnect an existing meter.
Near Sullivan City
Wires and county: AEP Texas Central · Hidalgo. Nearby pages: Alton (16 mi) · La Joya (6 mi) · Mission (16 mi) · Palmview (12 mi) · Penitas (8 mi) · Rio Grande City (18 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)
- AEP Texas (Central Division)
- AEP Texas Central delivery tariff (effective September 29, 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.