# Sunnyvale, Texas electricity: Oncor wires and 2,935 competitive homes

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

**In short:** ERCOT counts 2,935 active residential meters with a Sunnyvale address, all on Oncor's wires (October 5, 2026). Nearly every Sunnyvale address in our data is on Oncor's wires and can pick a retail provider.

## Moving to Sunnyvale

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

- **Water and utility billing:** utility billing (start, transfer or stop water service), 972-203-4161.
- **Natural gas:** Atmos Energy: customer service, 888-286-6700.
- **Public schools:** Sunnyvale ISD.
- **Driver license:** Texas DPS Driver License Office: Garland (Dallas Metro Area), 512-424-2600.

## Who delivers electricity in Sunnyvale?
ERCOT counts 2,935 active residential meters with a Sunnyvale address, all on Oncor's wires (October 5, 2026).

## Can every address in Sunnyvale choose?
No split flag on any ZIP code that holds Sunnyvale's 2,913 competitive homes; most streets here can shop.

## What is different about Sunnyvale?
- Sunnyvale counted about 9,008 residents in the Census Bureau's 2025 estimate, against 7,776 in the 2020 base, a change of +15.8%. The largest one-year change was +348 people, from July 2021 to July 2022. July 1 estimates in between: 8,048 (2021), 8,396 (2022), 8,574 (2023), 8,863 (2024). (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Sunnyvale covers 16.5 square miles of land and 0.3 square miles of water (Census 2025 Gazetteer). That works out to about 545 residents and 156 occupied households per square mile of land, with roughly 3.5 residents for every Sunnyvale 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/)
- Oncor delivers to 3,564,530 competitive homes in all; the 2,935 with a Sunnyvale address are 0.08 percent of them, roughly one in 1,214. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- On October 5, 2026, ERCOT showed 101 home meters switched off (de-energized) in the ZIP codes most Sunnyvale homes use, against 3,005 switched on; that 3.3 percent is mostly vacant houses and apartments between occupants. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- One ZIP code, 75182, holds almost every Sunnyvale-addressed competitive home (2,913); it also carries 52 Balch Springs addresses and 30 Garland addresses. Taken whole, 75182 has 1.17 competitive meters per Census household: 3,005 meters, 2,573 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/)
- Sunnyvale is 27 of 30 on a Dallas County list of cities and towns ranked by postal-city competitive homes; the next one up is Wilmer, at 3,165. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- By the Census Bureau's 2025 estimates, Sunnyvale is the number 24 city or town by population among the 31 that reach into Dallas County, one place ahead of Highland Park (8,764 residents). (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Mailing cities on the 3,005 competitive home meters in 75182, Sunnyvale's main ZIP code: Sunnyvale 2,913, Balch Springs 52, Garland 30. A mailing city is not a city limit, so the service address, not the postal name, settles which utility serves a home. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Electric bills over $250 a month: 51.1 percent of households in 75182, Sunnyvale's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $170,348 and the renter share at 8.5 percent. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- Looking at Sunnyvale's six closest towns, the largest competitive market belongs to Mesquite (53,169 homes on its postal city, about 3 miles off); the thinnest per household is Garland, at 0.23. (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/)

## By the numbers
- Population (July 1, 2025 estimate): 9,008
- Population (2020 estimates base): 7,776
- Occupied households (ACS 2020-2024): 2,573
- Active residential meters with a Sunnyvale address: 2,935
- Active business meters with a Sunnyvale address: 626
- Residential meters per Census household: 1.14
- Delivery utilities (homes): Oncor 2,935
- Counties: Dallas
- ZIP codes touching Sunnyvale: 1
- Split ZIP codes (flagged below): 0

## Plan prices (median ¢/kWh at 500 / 1,000 / 2,000 kWh)
- Oncor: 14.1 / 13.4 / 13.2; delivery 6.8673¢/kWh + $4.06/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 |
|---|---|---|---|---|---|---|
| 75182 | Sunnyvale 97%, Balch Springs 2% | 93% | 3,005 | 2,573 | 1.17 | Near-full coverage.  |

## Business electricity in Sunnyvale
626 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 Sunnyvale residents pick their own electric company?** Most Sunnyvale homes can. ERCOT's October 5, 2026 extract has 2,935 Sunnyvale-addressed homes on Oncor's competitive system, compared with 2,573 households in the Census survey. No Sunnyvale ZIP code carries a split flag, but only an address lookup is certain.
**Where do most Sunnyvale electricity customers live?** 75182. It holds 2,913 Sunnyvale-addressed competitive homes; counting every address in the ZIP, ERCOT has 3,005 meters for roughly 2,573 households, a 1.17 ratio.
**What do Sunnyvale electricity plans cost per kWh?** On October 19, 2026, the median fixed-rate Power to Choose listing on Oncor's wires was 13.4¢ per kWh at 1,000 kWh a month (170 listings); Oncor's delivery charge of 6.8673¢ per kWh plus $4.06 a month is included. A median is not a quote.
**I'm moving to Sunnyvale. How do I set up electricity?** Start with the address check: Oncor-delivered Sunnyvale homes choose among the plans offered there and set a start date. Turnover is real in 75182, where 11.2% moved in the past year (ACS); ERCOT logged 3 vacant-to-active meters in 75182 Oct. 7-18, 2026.
**How many households in Sunnyvale can shop for electricity?** ERCOT's October 5, 2026 extract lists 2,935 competitive residential meters with a Sunnyvale mailing address and 626 business meters; ACS 2020-2024: 2,573 occupied Sunnyvale households.
**Who do I call in Sunnyvale when the power goes out?** Call Oncor (oncor.com/outages), the wires utility for Sunnyvale's 2,935 competitive homes; a retail provider can't fix lines.

## 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/
- Oncor Electric Delivery: https://www.oncor.com/
- Oncor delivery tariff (effective October 4, 2026): https://interchange.puc.texas.gov/Documents/59249_105_1676040.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/
- 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
- 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
- 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 ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/

BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201