San Juan, Texas electricity: only part of town can choose a provider
Part of San Juan is on the competitive market and part isn't, so the first question for any San Juan address is whether AEP Texas Central or another utility serves it.
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 5,038 active residential meters with a San Juan address, all on AEP Texas Central's wires (October 5, 2026). Only part of San Juan is on the competitive market; the Census counts about 10,440 households in the city. Many of the rest likely get power from an electric co-op or another utility without retail choice, so check your exact address.
Who delivers electricity in San Juan?
Outages: AEP Texas Central at aeptexas.com/outages.
AEP Texas Central delivery charges and area
Can every address in San Juan choose an electricity provider?
5,036 of 5,036 San Juan-addressed competitive homes (100%) are in split ZIP codes (78589), where a neighbor may have a different utility.
1 more utility (co-op, city-owned or non-ERCOT; EIA 2024) also serves parts of Hidalgo County; no retail choice there unless the utility opted in.
Moving to San Juan
Local numbers for setting up a home in San Juan, each checked on the official source. More contacts, and a printable list, are on San Juan helpful move-in information.
- City hall (ask about water service): City of San Juan: City Hall (main line), 956-223-2200.
- Natural gas: Texas Gas Service: customer service, 800-700-2443.
- Public schools: Pharr-San Juan-Alamo ISD, Hidalgo ISD.
- Driver license: Texas DPS Driver License Office: McAllen, 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 San Juan 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 San Juan
Typical weather near San Juan, from the nearest NOAA station with a complete 1991-2020 record: Mcallen, about 6 miles from the city center (station elevation 100 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 99°F; January has the coolest average low, 49°F. Average daily highs reach 90°F or more in May 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 711 for the month, and heating-degree days (below 65°F) peak in January at 196. 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 | 71 | 49 | 0.7 | 53 | 196 |
| Feb | 76 | 53 | 0.6 | 97 | 103 |
| Mar | 82 | 59 | 1.0 | 209 | 44 |
| Apr | 87 | 65 | 1.4 | 341 | 8 |
| May | 92 | 71 | 1.4 | 512 | 0 |
| Jun | 96 | 76 | 3.1 | 630 | 0 |
| Jul | 98 | 77 | 1.6 | 685 | 0 |
| Aug | 99 | 77 | 1.5 | 711 | 0 |
| Sep | 94 | 73 | 3.8 | 561 | 0 |
| Oct | 89 | 66 | 2.0 | 399 | 4 |
| Nov | 80 | 57 | 1.1 | 167 | 64 |
| Dec | 73 | 51 | 0.6 | 72 | 175 |
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 San Juan'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 San Juan, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00415701; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in San Juan?
- San Juan counted about 37,868 residents in the Census Bureau's 2025 estimate, against 35,329 in the 2020 base, a change of +7.2%. The largest one-year change was +765 people, from July 2022 to July 2023. (Census)
- Only 5,038 competitive residential meters carry a San Juan mailing address, against 10,440 Census households in the city, a ratio of 0.48: some homes use other postal cities, and some likely have no retail choice. (ERCOT, Census)
- Of the 810,296 homes AEP Texas Central serves on the competitive market, 0.6% have a San Juan mailing address. (ERCOT)
- From Oct. 7 to Oct. 18, 2026, 19 residential meters in San Juan's main ZIP codes went from vacant to active in ERCOT's daily files, which usually means a move-in. (ERCOT)
- De-energized homes, usually empty or between tenants, number 718 in San Juan's main ZIP codes, 12.4% of all 5,776 residential meters there. (ERCOT)
- Nearly all San Juan-addressed competitive homes (5,036) are in one ZIP code, 78589. ZIP-wide, ERCOT counts 5,058 competitive meters for 11,709 Census households, a 0.43 ratio. (ERCOT, Census)
- By competitive homes on its postal city, San Juan is number 9 of the 22 cities and towns touching Hidalgo County, just behind Mercedes (7,559). (ERCOT)
- In ZIP 78589, which holds 5,036 San Juan-addressed homes, ERCOT counts only 0.43 competitive meters per Census household. EIA's 2024 data lists Magic Valley Electric Cooperative in the counties ERCOT and the Census link to that ZIP; their customers are not on the competitive market unless the utility opted in. (ERCOT, Census, EIA-861)
- In 78589, the ZIP holding most San Juan homes, the ACS 2020-2024 survey finds a median household income of $54,285, 20.7% renters and 18.1% of households with $250+ monthly electric bills. (Census)
- Nearby, Hidalgo (8 mi) has just 0.51 competitive homes per household, while McAllen counts 50,000 on its postal city. (ERCOT, Census)
San Juan electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 37,868 |
| Population (2020 estimates base) | 35,329 |
| Occupied households (ACS 2020-2024) | 10,440 |
| Active residential meters with a San Juan address | 5,038 |
| Active business meters with a San Juan address | 773 |
| Residential meters per Census household | 0.48 |
| Delivery utilities (homes) | AEP Texas Central 5,038 |
| Counties | Hidalgo |
| ZIP codes touching San Juan | 1 |
| Split ZIP codes (flagged below) | 1 |
How we built these numbers. Download: San Juan ZIP table (CSV).
What do electricity plans cost in San Juan 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) |
San Juan 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 | San Juan homes | Land in San Juan | Postal cities | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|---|
| 78589 | 5,036 | 46% | San Juan 100% | 5,058 | 11,709 | 0.43 | Split. Partial coverage. |
Split ZIP codes for San Juan: 78589.
Homes, renters and electric bills in San Juan’s ZIP codes
$250+ monthly electric bills peak in 78589 (18.1% of households).
| ZIP | San Juan homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 78589 | 5,036 | $54,285 | 20.7% | 0.2% | 18.1% | 2.9% | 5 | 19 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
How do towns near San Juan compare?
| Town (2,000+ people) | Miles | Competitive homes | Per household | Utility | Status |
|---|---|---|---|---|---|
| Alamo | 2 mi | 8,166 | 1.35 | AEP Texas Central | Most addresses can choose |
| Pharr | 3 mi | 14,146 | 0.59 | AEP Texas Central | Partly |
| McAllen | 6 mi | 50,000 | 1.02 | AEP Texas Central | Most addresses can choose |
| Donna | 7 mi | 8,373 | 1.70 | AEP Texas Central | Most addresses can choose |
| Hidalgo | 8 mi | 1,994 | 0.51 | AEP Texas Central | Partly |
| Edinburg | 9 mi | 28,882 | 0.81 | AEP Texas Central | Most addresses can choose |
Business electricity in San Juan
San Juan business meters: 773 (6.5 homes per business meter); large non-residential meters in San Juan’s main ZIP codes: 3 (ERCOT, October 5, 2026).
We compare retail providers and direct suppliers and can bid out high-consumption accounts, but we can’t promise savings or how many suppliers will bid. Businesses in Texas retail-choice areas can request a rate review online.
How do I compare electricity plans in San Juan?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in San Juan
Can I choose my electricity provider in San Juan?
Some can: 5,038 San Juan-addressed homes are on the competitive market, against about 10,440 city households. Many others likely belong to an electric co-op and can't choose. Split ZIP codes for San Juan: 78589; on those, check the exact address.
Where do most San Juan electricity customers live?
ZIP 78589: 5,036 of its 5,058 competitive residential meters use a San Juan address, and the ZIP has about 11,709 Census households (ratio 0.43).
Can businesses in San Juan choose an electricity provider?
Yes, where AEP Texas Central delivers: 773 San Juan-addressed business meters are on the competitive market in ERCOT's data, and large accounts can also buy from commercial suppliers directly.
I'm moving to San Juan. How do I set up electricity?
9.5% of 78589 residents moved within a year (ACS), and 19 78589 meters turned from vacant to active Oct. 7-18, 2026. Check that your San Juan address is on AEP Texas Central's wires, then choose a plan and start date.
Where do I report a San Juan power outage?
AEP Texas Central, at aeptexas.com/outages: it carries power to all 5,038 San Juan-addressed competitive homes, whatever retail provider bills them. Co-op members report outages to their co-op.
Where to next?
Up: AEP Texas Central area · Hidalgo County
Nearest town pages: Alamo · Pharr · McAllen · Donna · Hidalgo · Edinburg · Weslaco · Mission
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)
BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201. PUCT registration is not an endorsement.