# Rockdale, Texas electricity: Oncor wires, 1 split ZIP code to check

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

**In short:** ERCOT counts 2,912 active residential meters with a Rockdale address, all on Oncor's wires (October 5, 2026). 1 of Rockdale's ZIP codes is split, so most addresses can shop, but yours needs a check.

## Moving to Rockdale

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

- **City hall (ask about water service):** City of Rockdale: City Hall (main line), 512-446-2511.
- **Natural gas:** Atmos Energy: customer service, 888-286-6700.
- **Public schools:** Rockdale ISD.
- **Driver license:** Texas DPS Driver License Office: Cameron, 512-424-2600.

## Who delivers electricity in Rockdale?
ERCOT counts 2,912 active residential meters with a Rockdale address, all on Oncor's wires (October 5, 2026).

## Can every address in Rockdale choose?
Split ZIP codes holding Rockdale homes: 76567. They carry 2,910 of the 2,910 competitive homes with a Rockdale address (100%); on those streets a neighbor's utility can differ from yours.

## What is different about Rockdale?
- Population: 5,294 (2020 base) to 5,688 (July 2025), +7.4%, per Census Vintage 2025 estimates. The largest one-year change was +135 people, from July 2020 to July 2021. July 1 estimates in between: 5,431 (2021), 5,524 (2022), 5,596 (2023), 5,618 (2024). (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Rockdale covers 4.3 square miles of land (Census 2025 Gazetteer). That works out to about 1,327 residents and 511 occupied households per square mile of land, with roughly 2.6 residents for every Rockdale 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/)
- Mailing addresses stretch past city limits here. 2,912 competitive residential meters use Rockdale as their postal city, while the city itself has 2,191 Census households, a ratio of 1.33. (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/)
- Oncor delivers to 3,564,530 competitive homes in all; the 2,912 with a Rockdale address are 0.08 percent of them, roughly one in 1,224. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- On October 5, 2026, ERCOT showed 527 home meters switched off (de-energized) in the ZIP codes most Rockdale homes use, against 2,918 switched on; that 15.3 percent is mostly vacant houses and apartments between occupants. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- One ZIP code, 76567, holds almost every Rockdale-addressed competitive home (2,910). Taken whole, 76567 has 0.79 competitive meters per Census household: 2,918 meters, 3,717 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/)
- Rockdale is 1 of 5 on a Milam County list of cities and towns ranked by postal-city competitive homes; second place is Cameron, at 2,817. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- By the Census Bureau's 2025 estimates, Rockdale is the number 1 city or town by population among the 5 that reach into Milam County, one place ahead of Cameron (5,489 residents). (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Electric bills over $250 a month: 37.4 percent of households in 76567, Rockdale's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $69,983 and the renter share at 24.3 percent. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)

## By the numbers
- Population (July 1, 2025 estimate): 5,688
- Population (2020 estimates base): 5,294
- Occupied households (ACS 2020-2024): 2,191
- Active residential meters with a Rockdale address: 2,912
- Active business meters with a Rockdale address: 734
- Residential meters per Census household: 1.33
- Delivery utilities (homes): Oncor 2,912
- Counties: Milam
- ZIP codes touching Rockdale: 1
- Split ZIP codes (flagged below): 1

## 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 |
|---|---|---|---|---|---|---|
| 76567 | Rockdale 100% | 2% | 2,918 | 3,717 | 0.79 | Split. Most homes, not all. Mostly outside Rockdale city limits. |

## Business electricity in Rockdale
734 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 Rockdale?** Most Rockdale homes can. ERCOT's October 5, 2026 extract has 2,912 Rockdale-addressed homes on Oncor's competitive system, compared with 2,191 households in the Census survey. Addresses in 76567 (split) need an exact-address check before you shop.
**Where do most Rockdale electricity customers live?** That is 76567, home to 2,910 of the competitive meters with a Rockdale address. ZIP-wide: 2,918 ERCOT meters, about 3,717 Census households, 0.79 per household.
**How much is electricity in Rockdale right now?** 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 Rockdale. How do I set up electricity?** 11.6% of 76567 residents moved within a year (ACS), and 7 meters in 76567 turned from vacant to active Oct. 7-18, 2026. Check that your Rockdale address is on Oncor's wires, then choose a plan and start date.
**Why are there more electric meters than households in Rockdale?** 2,912 Rockdale-addressed meters against 2,191 city households is 1.33 per household: the Rockdale postal area extends past city limits, and new homes get meters before the Census counts them. It doesn't mean every nearby address can choose.
**Who restores power in Rockdale after an outage?** Oncor, at oncor.com/outages: it carries power to all 2,912 Rockdale-addressed competitive homes, whatever retail provider bills them.

## 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
- 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
- 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