# Harlingen, Texas electricity: AEP Texas Central wires, 2 split ZIP codes to check

_Updated October 19, 2026. Data: ERCOT Oct 5, 2026; Power to Choose Oct 19, 2026, 7:59 AM CT._

**In short:** Every Harlingen-addressed home in ERCOT's competitive data is on AEP Texas Central's wires (29,141 active residential meters, October 5, 2026). Most Harlingen addresses can choose a retail provider, but 2 of the ZIP codes below are split, so check your exact address.

## Moving to Harlingen

Local numbers for setting up a home in Harlingen, each checked on the official source. More contacts: https://powerhopper.energy/texas-electricity/harlingen/move-in-information

- **City hall (ask about water service):** City of Harlingen: City Hall (main line), 956-216-5000.
- **Natural gas:** Texas Gas Service: customer service, 800-700-2443.
- **Public schools:** Harlingen CISD, San Benito CISD.
- **Driver license:** Texas DPS Driver License Office: Harlingen, 512-424-2600.

## Who delivers electricity in Harlingen?
Every Harlingen-addressed home in ERCOT's competitive data is on AEP Texas Central's wires (29,141 active residential meters, October 5, 2026).

## Can every address in Harlingen choose?
Of the 29,135 Harlingen-addressed competitive homes we can place by ZIP code, 8,455 (29%) are in the split ZIP codes 78552, 78586; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.

## What is different about Harlingen?
- Magic Valley Electric Cooperative also serves parts of the Rio Grande Valley; EIA lists it in Hidalgo and Cameron counties. Its members are not on the competitive market. (Source: https://www.magicvalley.coop/, https://www.eia.gov/electricity/data/eia861/)
- Census estimates put Harlingen at 72,467 residents on July 1, 2025, up 0.8% from a 2020 estimates base of 71,879. (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- ERCOT's daily files added 17 new residential meters in Harlingen's main ZIP codes between Oct. 7 and Oct. 18, 2026, 14 of them in 78550. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Harlingen-addressed business meters number 5,349 in ERCOT's Oct. 5 extract, one for every 5.4 homes. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Among the 17 cities and towns that touch Cameron County, Harlingen ranks 1 by competitive homes on its postal city in ERCOT's data, ahead of San Benito (12,290). (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Renters make up 49.5% of households in 78550, the highest share among Harlingen's main ZIP codes (ACS 2020-2024), so many Harlingen addresses change hands, and electricity accounts, every year. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)

## By the numbers
- Population (July 1, 2025 estimate): 72,467
- Population (2020 estimates base): 71,879
- Occupied households (ACS 2020-2024): 26,007
- Active residential meters with a Harlingen address: 29,141
- Active business meters with a Harlingen address: 5,349
- Residential meters per Census household: 1.12
- Delivery utilities (homes): AEP Texas Central 29,141
- Counties: Cameron
- ZIP codes touching Harlingen: 3
- Split ZIP codes (flagged below): 2

## Plan prices (median ¢/kWh at 500 / 1,000 / 2,000 kWh)
- AEP Texas Central: 12.7 / 12.1 / 12; delivery 5.6898¢/kWh + $3.24/mo

## ZIP codes
**Not every address in these ZIP codes has retail choice; check your exact address.**

| ZIP | Postal cities | Land in city | Competitive homes | Households | Ratio | Notes |
|---|---|---|---|---|---|---|
| 78550 | Harlingen 99%, Primera 1% | 26% | 20,941 | 19,733 | 1.06 | Near-full coverage. 14 new residential meters Oct 7-18, 2026. |
| 78586 | San Benito 98%, Laureles 2% | 1% | 12,497 | 15,699 | 0.8 | Split. Most homes, not all. Split: Brownsville Public Utilities Board (Brownsville city limits cover about 6% of the ZIP's land); that utility's customers can't choose. Mostly outside Harlingen city limits. |
| 78552 | Harlingen 82%, Primera 10%, Palm Valley 7% | 29% | 10,265 | 13,567 | 0.76 | Split. Most homes, not all.  |

## Business electricity in Harlingen
5,349 active business meters. Power Hopper compares offers from retail electric providers and direct suppliers; for high-consumption businesses we can run a competitive bid. No savings or bidder count is promised. Businesses in Texas retail-choice areas can request a rate review online.

## Questions
**Can I choose my electricity provider in Harlingen?** For most addresses, yes: 29,141 homes with a Harlingen mailing address are on the competitive market in ERCOT's October 5, 2026 data, against 26,007 Census households in the city. 2 of the ZIP codes touching Harlingen are split (78552, 78586), so check your exact address.
**Which Harlingen ZIP code has the most homes on the competitive market?** 78550. ERCOT lists 20,941 competitive residential meters there, 20,680 with a Harlingen address, against about 19,733 Census households in the ZIP (ratio 1.06). Among Harlingen's main ZIP codes, 78552 has the fewest competitive meters per household, 0.76.
**Which part of Harlingen has the highest electric bills?** It varies by ZIP code. In the Census survey (ACS 2020-2024), 32.2% of households in 78552 reported paying $250 or more a month for electricity, the highest share among Harlingen's main ZIP codes, against 25.7% in 78550. Home size, age and heating type drive much of that, so compare plans at your own usage.
**Who do I call in Harlingen when the power goes out?** AEP Texas Central, which delivers to all 29,141 Harlingen-addressed homes in ERCOT's competitive data, not your retail provider. aeptexas.com/outages.

## Sources
- ERCOT TDSP ESIID Extract (report 203): full extract as of Oct 5, 2026; daily files Oct 7-18, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year estimates (B25003 households, B01003 population): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census Vintage 2025 city and town population estimates: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv
- Census 2020 ZCTA-to-place and ZCTA-to-county relationship files: https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/
- EIA-861 (2024) utility service territories by county: https://www.eia.gov/electricity/data/eia861/
- PUCT Power to Choose residential offer export, Oct 19, 2026, 7:59 AM CT: https://www.powertochoose.org/en-us/Plan/ExportToCsv
- PUCT: Choosing an Electric Plan: https://www.puc.texas.gov/consumer-help/electricity/electric-plan/
- PUCT broker directory (BR260201): https://www.puc.texas.gov/industry/electric/directories/brk/alpha_brk/
- AEP Texas (Central Division): https://www.aeptexas.com/
- AEP Texas Central delivery tariff (effective September 29, 2026): https://www.aeptexas.com/lib/docs/ratesandtariffs/Texas/AEP_TEXAS_TARIFF_Eff_Sept_29_2026v1.pdf
- Magic Valley Electric Cooperative: https://www.magicvalley.coop/
- EIA-861 (2024) utility service territories by county: https://www.eia.gov/electricity/data/eia861/
- Census Bureau Vintage 2025 city and town population estimates: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv
- ERCOT daily TDSP ESIID Extract files, Oct 7-18, 2026, via Power Hopper's Oct 18 ZIP study: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year, table B25003 (via Power Hopper's Oct 18, 2026 ZIP study): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/

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