Port Lavaca, Texas electricity: AEP Texas Central wires, 1 split ZIP code to check
Port Lavaca: 11,060 residents, 4,977 households in the Census survey and 5,138 competitive home meters on its postal city. Here is who delivers the power, which addresses can shop and what plans cost on AEP Texas Central's wires.
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 5,138 active residential meters with a Port Lavaca address, all on AEP Texas Central's wires (October 5, 2026). 1 of Port Lavaca's ZIP codes is split, so most addresses can shop, but yours needs a check.
Who delivers electricity in Port Lavaca?
Outages: AEP Texas Central at aeptexas.com/outages.
AEP Texas Central delivery charges and area
Can every address in Port Lavaca choose an electricity provider?
Split ZIP codes holding Port Lavaca homes: 77979. They carry 5,138 of the 5,138 competitive homes with a Port Lavaca address (100%); on those streets a neighbor's utility can differ from yours.
Without retail choice unless opted in: 2 other utilities in Calhoun County (EIA 2024).
Moving to Port Lavaca
Local numbers for setting up a home in Port Lavaca, each checked on the official source. More contacts, and a printable list, are on Port Lavaca helpful move-in information.
- Water and utility billing: City of Port Lavaca: utility billing (water, sewer, garbage), 361-552-9793.
- Natural gas: CenterPoint Energy: gas leak emergency (24/7), 888-876-5786.
- Public schools: Calhoun County ISD.
- Driver license: Texas DPS Driver License Office: Port Lavaca, 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 Port Lavaca 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 Port Lavaca
Typical weather near Port Lavaca, from the nearest NOAA station with a complete 1991-2020 record: Pt Comfort, about 5 miles from the city center (station elevation 20 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 92°F; January has the coolest average low, 46°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 629 for the month, and heating-degree days (below 65°F) peak in January at 325. 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 | 64 | 46 | 3.1 | 10 | 325 |
| Feb | 68 | 49 | 1.8 | 23 | 204 |
| Mar | 73 | 57 | 3.2 | 78 | 92 |
| Apr | 78 | 63 | 2.6 | 188 | 20 |
| May | 84 | 71 | 4.3 | 384 | 1 |
| Jun | 89 | 76 | 4.9 | 537 | 0 |
| Jul | 91 | 78 | 3.2 | 614 | 0 |
| Aug | 92 | 78 | 3.4 | 629 | 0 |
| Sep | 89 | 73 | 4.8 | 477 | 0 |
| Oct | 83 | 65 | 3.7 | 282 | 16 |
| Nov | 74 | 55 | 3.6 | 91 | 111 |
| Dec | 67 | 48 | 2.9 | 27 | 264 |
Historical weather records for Calhoun County
The Texas Railroad Commission's county table lists a record low of 9°F (1989) and a record high of 109°F (2011), and a regional estimate of 18 consecutive hours as a typical longest freezing or frozen-precipitation period for Calhoun County. These are historical county extremes, not Port Lavaca'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 Port Lavaca, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00417140; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Port Lavaca?
- Port Lavaca counted about 11,060 residents in the Census Bureau's 2025 estimate, against 11,549 in the 2020 base, a change of -4.2%. The largest one-year change was -164 people, from July 2024 to July 2025. July 1 estimates in between: 11,394 (2021), 11,291 (2022), 11,249 (2023), 11,224 (2024). (Census)
- Port Lavaca covers 10.2 square miles of land and 4.0 square miles of water (Census 2025 Gazetteer). That works out to about 1,090 residents and 490 occupied households per square mile of land, with roughly 2.2 residents for every Port Lavaca household. (Census, Census, Census)
- Port Lavaca-addressed homes make up 0.6% of the 810,296 residential meters on AEP Texas Central's competitive system. (ERCOT)
- Vacancy signal: 12.0 percent of residential meters in Port Lavaca's core ZIP codes were de-energized on October 5, 2026 (710 off, 5,185 on), per ERCOT. (ERCOT)
- One ZIP code, 77979, holds almost every Port Lavaca-addressed competitive home (5,138); it also carries 47 Long Mott addresses. Taken whole, 77979 has 0.73 competitive meters per Census household: 5,185 meters, 7,140 households. (ERCOT, Census)
- Among the 3 cities and towns that reach into Calhoun County, Port Lavaca places 1 for competitive homes on its postal city; second place is Seadrift, at 1,039. (ERCOT)
- By the Census Bureau's 2025 estimates, Port Lavaca is the number 1 city or town by population among the 3 that reach into Calhoun County, one place ahead of Seadrift (1,031 residents). (Census)
- Mailing cities on the 5,185 competitive home meters in 77979, Port Lavaca's main ZIP code: Port Lavaca 5,138, Long Mott 47. A mailing city is not a city limit, so the service address, not the postal name, settles which utility serves a home. (ERCOT)
- Electric bills over $250 a month: 31.4 percent of households in 77979, Port Lavaca's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $77,039 and the renter share at 24.7 percent. (Census)
- Victoria, 26 miles from Port Lavaca, has the most competitive homes nearby (25,955); Victoria has the fewest per household, still 1.02. (ERCOT, Census)
Port Lavaca electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 11,060 |
| Population (2020 estimates base) | 11,549 |
| Occupied households (ACS 2020-2024) | 4,977 |
| Active residential meters with a Port Lavaca address | 5,138 |
| Active business meters with a Port Lavaca address | 1,200 |
| Residential meters per Census household | 1.03 |
| Delivery utilities (homes) | AEP Texas Central 5,138 |
| Counties | Calhoun |
| ZIP codes touching Port Lavaca | 1 |
| Split ZIP codes (flagged below) | 1 |
How we built these numbers. Download: Port Lavaca ZIP table (CSV).
What do electricity plans cost in Port Lavaca 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) |
Port Lavaca 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 Port Lavaca address | Share of ZIP land in Port Lavaca | Mailing cities | Reading |
|---|---|---|---|---|---|---|---|
| 77979 | 0.73 | 5,185 | 7,140 | 5,138 | 3% | Port Lavaca 99% | Split. Most homes, not all. Mostly outside Port Lavaca city limits. |
Split ZIP codes for Port Lavaca: 77979.
Homes, renters and electric bills in Port Lavaca’s ZIP codes
ZIP 77979 leads Port Lavaca on electric bills over $250 a month, reported by 31.4 percent of its households (Census ACS 2020-2024).
| ZIP | Bills $250+ | Household income (median) | Built since 2020 | Port Lavaca-addressed homes | Renting | Meters added Oct 7-18 | In 5+ unit buildings | Vacant-to-active switches |
|---|---|---|---|---|---|---|---|---|
| 77979 | 31.4% | $77,039 | 1.1% | 5,138 | 24.7% | 2 | 2.7% | 6 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Port Lavaca and its neighbors
| Nearby town (2,000+ residents) | Wires utility | Can homes choose? | Postal-city meters per household | Distance | Competitive homes, postal city |
|---|---|---|---|---|---|
| Edna | AEP Texas Central | Yes, mostly | 1.10 | 25 mi away | 2,587 homes |
| Palacios | AEP Texas Central | Yes, mostly | 1.35 | 25 mi away | 2,511 homes |
| Victoria | AEP Texas Central | Yes, mostly | 1.02 | 26 mi away | 25,955 homes |
Business electricity in Port Lavaca
Port Lavaca business meters: 1,200 (4.3 homes per business meter); large non-residential meters in Port Lavaca’s main ZIP codes: 3 (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 Port Lavaca?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Port Lavaca
Does Port Lavaca have electricity choice?
Most Port Lavaca homes can. ERCOT's October 5, 2026 extract has 5,138 Port Lavaca-addressed homes on AEP Texas Central's competitive system, compared with 4,977 households in the Census survey. Addresses in 77979 (split) need an exact-address check before you shop.
What is the biggest Port Lavaca ZIP code for electricity customers?
77979. It holds 5,138 Port Lavaca-addressed competitive homes; counting every address in the ZIP, ERCOT has 5,185 meters for roughly 7,140 households, a 0.73 ratio.
What do Port Lavaca electricity plans cost per kWh?
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.
How do I start electric service at a new Port Lavaca address?
Start with the address check: AEP Texas Central-delivered Port Lavaca homes choose among the plans offered there and set a start date. Turnover is real in 77979, where 8.9% moved in the past year (ACS); ERCOT logged 6 vacant-to-active meters in 77979 Oct. 7-18, 2026.
How many households in Port Lavaca can shop for electricity?
ERCOT's October 5, 2026 extract lists 5,138 competitive residential meters with a Port Lavaca mailing address and 1,200 business meters; ACS 2020-2024: 4,977 occupied Port Lavaca households.
Where do I report a Port Lavaca power outage?
Call AEP Texas Central (aeptexas.com/outages), the wires utility for Port Lavaca's 5,138 competitive homes; a retail provider can't fix lines.
Where to next?
Up: AEP Texas Central area · Calhoun County
Nearest town pages: Edna · Victoria · El Campo · Rockport · Bay City · Aransas Pass · Wharton · Ingleside
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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