Sinton, Texas electricity: AEP Texas Central wires and 2,938 competitive homes
2,938 Sinton-addressed homes buy power on AEP Texas Central's system, about 1.54 for each Census household. Here is where choice stops, what delivery costs and where plan prices sit today.
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 2,938 active residential meters with a Sinton address, all on AEP Texas Central's wires (October 5, 2026). Nearly every Sinton address in our data is on AEP Texas Central's wires and can pick a retail provider.
Who delivers electricity in Sinton?
Outages: AEP Texas Central at aeptexas.com/outages.
AEP Texas Central delivery charges and area
Can every address in Sinton choose an electricity provider?
No split flag on any ZIP code that holds Sinton's 2,937 competitive homes; most streets here can shop.
Without retail choice unless opted in: 1 other utility in San Patricio County (EIA 2024).
Moving to Sinton
Local numbers for setting up a home in Sinton, each checked on the official source. More contacts, and a printable list, are on Sinton helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 361-364-2381.
- Natural gas: CenterPoint Energy: gas leak emergency (24/7), 888-876-5786.
- Public schools: Sinton ISD.
- Driver license: Texas DPS Driver License Office: Sinton, 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 Sinton 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 Sinton
Typical weather near Sinton, from the nearest NOAA station with a complete 1991-2020 record: Sinton, about 2 miles from the city center (station elevation 48 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, 45°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 628 for the month, and heating-degree days (below 65°F) peak in January at 310. 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 | 66 | 45 | 1.7 | 20 | 310 |
| Feb | 70 | 49 | 1.9 | 40 | 185 |
| Mar | 75 | 56 | 2.4 | 103 | 89 |
| Apr | 81 | 62 | 1.8 | 207 | 21 |
| May | 86 | 69 | 3.3 | 392 | 1 |
| Jun | 91 | 74 | 3.4 | 531 | 0 |
| Jul | 93 | 76 | 2.8 | 601 | 0 |
| Aug | 95 | 76 | 2.5 | 628 | 0 |
| Sep | 90 | 71 | 5.3 | 476 | 0 |
| Oct | 85 | 63 | 3.9 | 287 | 17 |
| Nov | 75 | 54 | 2.4 | 100 | 115 |
| Dec | 68 | 47 | 1.7 | 35 | 272 |
Historical weather records for San Patricio County
The Texas Railroad Commission's county table lists a record low of 10°F (1989) and a record high of 111°F (2000), and a regional estimate of 18 consecutive hours as a typical longest freezing or frozen-precipitation period for San Patricio County. These are historical county extremes, not Sinton'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 Sinton, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00418354; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Sinton?
- Population: 5,543 (2020 base) to 5,966 (July 2025), +7.6%, per Census Vintage 2025 estimates. The largest one-year change was +320 people, from July 2024 to July 2025. July 1 estimates in between: 5,561 (2021), 5,555 (2022), 5,603 (2023), 5,646 (2024). (Census)
- Sinton covers 5.1 square miles of land (Census 2025 Gazetteer). That works out to about 1,167 residents and 373 occupied households per square mile of land, with roughly 3.1 residents for every Sinton household. (Census, Census, Census)
- Mailing addresses stretch past city limits here. 2,938 competitive residential meters use Sinton as their postal city, while the city itself has 1,907 Census households, a ratio of 1.54. (ERCOT, Census)
- AEP Texas Central share: 0.4% of its 810,296 competitive residential meters carry a Sinton address. (ERCOT)
- Vacancy signal: 19.3 percent of residential meters in Sinton's core ZIP codes were de-energized on October 5, 2026 (702 off, 2,937 on), per ERCOT. (ERCOT)
- One ZIP code, 78387, holds almost every Sinton-addressed competitive home (2,937). Taken whole, 78387 has 0.92 competitive meters per Census household: 2,937 meters, 3,199 households. (ERCOT, Census)
- Sinton is 5 of 13 on a San Patricio County list of cities and towns ranked by postal-city competitive homes; the next one up is Ingleside, at 4,586. (ERCOT)
- By the Census Bureau's 2025 estimates, Sinton is the number 5 city or town by population among the 13 that reach into San Patricio County, one place ahead of Mathis (4,312 residents). (Census)
- Renting is most common in 78387, where the ACS 2020-2024 counts 42.1 percent of households as renters; in that part of Sinton, electricity accounts change hands with each lease. (Census)
- Electric bills over $250 a month: 34.1 percent of households in 78387, Sinton's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $53,048. (Census)
- Choice is broad around Sinton: even Robstown, the bottom of its six nearest towns on this measure, has 1.03 competitive homes per household; Portland (15 mi) is the biggest at 8,544. (ERCOT, Census)
Sinton electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 5,966 |
| Population (2020 estimates base) | 5,543 |
| Occupied households (ACS 2020-2024) | 1,907 |
| Active residential meters with a Sinton address | 2,938 |
| Active business meters with a Sinton address | 847 |
| Residential meters per Census household | 1.54 |
| Delivery utilities (homes) | AEP Texas Central 2,938 |
| Counties | San Patricio |
| ZIP codes touching Sinton | 1 |
| Split ZIP codes (flagged below) | 0 |
How we built these numbers. Download: Sinton ZIP table (CSV).
What do electricity plans cost in Sinton right now?
Same-day medians for AEP Texas Central’s area (AEP Texas Central: 164 listings), delivery included; not a quote.
| Delivery utility | 500 kWh | 1,000 kWh | 2,000 kWh | Delivery charge |
|---|---|---|---|---|
| AEP Texas Central | 12.7¢ | 12.1¢ | 12¢ | 5.6898¢/kWh + $3.24/mo (effective September 29, 2026; tariff) |
Sinton 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 | Meters per household | ERCOT competitive homes | Census households | With Sinton address | Share of ZIP land in Sinton | Mailing cities | Reading |
|---|---|---|---|---|---|---|---|
| 78387 | 0.92 | 2,937 | 3,199 | 2,937 | 2% | Sinton 100% | Near-full coverage. Mostly outside Sinton city limits. |
Split ZIP codes for Sinton: none flagged.
Homes, renters and electric bills in Sinton’s ZIP codes
ZIP 78387 leads Sinton on electric bills over $250 a month, reported by 34.1 percent of its households (Census ACS 2020-2024).
| ZIP | Bills $250+ | Household income (median) | Built since 2020 | Sinton-addressed homes | Renting | Meters added Oct 7-18 | In 5+ unit buildings | Vacant-to-active switches |
|---|---|---|---|---|---|---|---|---|
| 78387 | 34.1% | $53,048 | 1.0% | 2,937 | 42.1% | 3 | 6.0% | 6 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Sinton and its neighbors
| Nearby town (2,000+ residents) | Wires utility | Can homes choose? | Postal-city meters per household | Distance | Competitive homes, postal city |
|---|---|---|---|---|---|
| Taft | AEP Texas Central | Yes, mostly | 2.36 | 8 mi away | 2,022 homes |
| Odem | AEP Texas Central | Yes, mostly | 2.08 | 8 mi away | 1,575 homes |
| Portland | AEP Texas Central | Yes, mostly | 1.13 | 15 mi away | 8,544 homes |
| Mathis | AEP Texas Central | Yes, mostly | 1.55 | 20 mi away | 2,801 homes |
| Robstown | Nueces Electric Cooperative | Some; city utility elsewhere | 1.03 | 20 mi away | 3,892 homes |
| Ingleside | AEP Texas Central | Yes, mostly | 1.18 | 21 mi away | 4,586 homes |
Business electricity in Sinton
Sinton business meters: 847 (3.5 homes per business meter); large non-residential meters in Sinton’s main ZIP codes: 4 (ERCOT, October 5, 2026).
Larger accounts can go out to bid with retail providers and direct suppliers; we can’t promise savings or bids.
How do I compare electricity plans in Sinton?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Sinton
Does Sinton have electricity choice?
Most Sinton homes can. ERCOT's October 5, 2026 extract has 2,938 Sinton-addressed homes on AEP Texas Central's competitive system, compared with 1,907 households in the Census survey. No Sinton ZIP code carries a split flag, but only an address lookup is certain.
What is the biggest Sinton ZIP code for electricity customers?
That is 78387, home to 2,937 of the competitive meters with a Sinton address. ZIP-wide: 2,937 ERCOT meters, about 3,199 Census households, 0.92 per household.
How much is electricity in Sinton right now?
On October 19, 2026, the median fixed-rate Power to Choose listing on AEP Texas Central's wires was 12.1¢ per kWh at 1,000 kWh a month (164 listings); AEP Texas Central's delivery charge of 5.6898¢ per kWh plus $3.24 a month is included. A median is not a quote.
I'm moving to Sinton. How do I set up electricity?
Confirm the address is on AEP Texas Central's wires, then pick a plan and a start date. In 78387, 11.0% of residents moved in the past year (ACS); 6 meters in 78387 went vacant-to-active Oct. 7-18, 2026.
Why are there more electric meters than households in Sinton?
2,938 Sinton-addressed meters against 1,907 city households is 1.54 per household: the Sinton postal area extends past city limits, and new homes get meters before the Census counts them. It doesn't mean every nearby address can choose.
Who restores power in Sinton after an outage?
Call AEP Texas Central (aeptexas.com/outages), the wires utility for Sinton's 2,938 competitive homes; a retail provider can't fix lines.
Where to next?
Up: AEP Texas Central area · San Patricio County
Nearest town pages: Portland · Ingleside · Aransas Pass · Rockport · Corpus Christi · Beeville · Alice · Kingsville
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)
- AEP Texas (Central Division)
- AEP Texas Central delivery tariff (effective September 29, 2026)
- Census Bureau 2025 Gazetteer Files, Texas places (land and water area)
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