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

_Updated October 19, 2026. Data: ERCOT Oct 5, 2026; Census ACS 2020-2024; Power to Choose Oct 19, 2026, 7:59 AM CT._

**San Diego at a glance:** 4,076 San Diego-addressed homes in ERCOT's Oct. 5 extract: 2,364 on AEP Texas Central; 1,712 on Nueces Electric Cooperative. 2 split ZIP codes (78384, 78332) hold 4,076 of San Diego's 4,076 placed homes (100%); those addresses need a lookup.

## Moving to San Diego

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

- **Water and utility billing:** San Diego Municipal Utility District: water customer service, 361-279-3357.
- **Natural gas:** CenterPoint Energy: gas leak emergency (24/7), 888-876-5786.
- **Public schools:** San Diego ISD.
- **Driver license:** Texas DPS Driver License Office: Alice, 512-424-2600.

## Facts
- Land: 1.9 sq mi; 1,843 residents and 659 households per sq mi; 2.80 people per San Diego household. (Source: https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html, https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- Heating fuel, San Diego homes (ACS 2020-2024): electricity 78.0% (±8), utility gas 18.6%; Duval County overall: 88.3% electric. All-electric homes feel winter rates more. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- Of San Diego homes paying a power bill, 44.1% report $250 or more a month and 13.1% under $100 (Duval County: 47.4% at $250+). (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- Housing stock: 81.7% detached houses, 4.8% in 5+ unit buildings, 9.1% mobile homes; median year built 1969, 1.2% built 2010 or later. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- ERCOT status split for 7,039 San Diego home meters (Oct. 5, 2026): active 4,076, inactive 919, de-energized 2,044; idle share 42.1%. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- ACS 2020-2024: 27.8% of San Diego housing units vacant (±9), with 20.1% of vacant units held for seasonal use. Vacant homes keep meters that are not counted as households. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- 4,076 home meters use the San Diego postal name, against 1,253 households inside city limits (3.25 per household): the mailing area runs well past the boundary. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- 78384 carries 4,018 of 4,076 San Diego-addressed homes (99%); ratio across the whole ZIP 2.50, from 4,030 home meters in all and 1,610 households. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)

## Homes: heating fuel, bills, housing (ACS 2020-2024, the city (Census boundary))
- Heat with electricity: 78.0%
- Heat with utility gas: 18.6%
- Bill $250 or more: 44.1%
- Built 2010 or later: 1.2%
- Renter households: 28.5%
- Median year built: 1969

## Meters and households
- Residents, July 2025: 3,503
- Residents, 2020 base: 3,744
- Households (ACS): 1,253
- Active home meters: 4,076
- Inactive home meters: 919
- De-energized home meters: 2,044
- Active small-business meters: 555
- Active large-business meters: 2
- Home meters per household: 3.25
- ZIP codes listed: 2
- Split ZIP codes: 2
- Counties: Duval / Jim Wells

## Plan prices (Oct 19, 2026 medians)
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.

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

| ZIP | Homes with this address | All ZIP homes | Households | Ratio | Flags |
|---|---|---|---|---|---|
| 78384 | 4,018 | 4,030 | 1,610 | 2.5 | split, 2 wires firms |
| 78332 | 58 | 11,373 | 8,946 | 1.27 | split, 2 wires firms |

## Businesses
557 business meters. Business rate reviews: /business.

## Questions
**Is electricity deregulated in San Diego?** Mostly. ERCOT counts 4,076 competitive San Diego home meters, all on AEP Texas Central's system, against 1,253 households. Split: 78384, 78332. An address lookup settles it.
**Do San Diego homes heat with electricity?** 78.0% of San Diego homes heat with electricity (ACS 2020-2024, margin ±8) and 18.6% with utility gas; 44.1% 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 San Diego?** 78384: 4,018 San Diego-addressed competitive homes; ratio 2.50 across the ZIP (4,030 home meters in all, 1,610 households).
**Who handles San Diego power outages?** Call the wires utility for your street (not the company that bills you): AEP Texas Central (2,364 homes); Nueces Electric Cooperative (1,712 homes).
**How do I set up power at a new San Diego home?** Check the address is on AEP Texas Central's wires, choose a plan and a start date. San Diego had 2,963 idle home meters (inactive or de-energized) on Oct. 5, 2026, so many move-ins reconnect an existing meter.

## 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
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: meters by status and premise type, by postal city: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year estimates, tables B25040, B25132, B25024, B25034, B25035, B25018, B19013, B25003, B25002, B25004 (90% margins of error): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- 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/
- Nueces Electric Cooperative (NEC): https://nueceselectric.org/
- 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
- 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
- Census Bureau 2025 Gazetteer Files, Texas places (land and water area): https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html
- 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
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census ACS 2020-2024 5-year estimates, tables B25040, B25132, B25024, B25034, B25035, B25018, B19013, B25003, B25002, B25004 (90% margins of error): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census ACS 2020-2024 5-year estimates, tables B25040, B25132, B25024, B25034, B25035, B25018, B19013, B25003, B25002, B25004 (90% margins of error): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census ACS 2020-2024 5-year estimates, tables B25040, B25132, B25024, B25034, B25035, B25018, B19013, B25003, B25002, B25004 (90% margins of error): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year estimates, tables B25040, B25132, B25024, B25034, B25035, B25018, B19013, B25003, B25002, B25004 (90% margins of error): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- 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: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- 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: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- 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

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