Heath, Texas electricity: Oncor wires, 1 split ZIP code to check
Heath sits on Oncor's wires, with a few split ZIP codes. Below: ZIP by ZIP, who can shop, and what plans cost this month.
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 4,385 active residential meters with a Heath address, all on Oncor's wires (October 5, 2026). 1 of Heath's ZIP codes is split, so most addresses can shop, but yours needs a check.
Who delivers electricity in Heath?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Heath choose an electricity provider?
Split ZIP codes holding Heath homes: 75126. They carry 360 of the 4,375 competitive homes with a Heath address (8%); on those streets a neighbor's utility can differ from yours.
Without retail choice unless opted in: 2 other utilities in Rockwall County · Kaufman County (EIA 2024).
Moving to Heath
Local numbers for setting up a home in Heath, each checked on the official source. More contacts, and a printable list, are on Heath helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 972-771-6228.
- Trash pickup: Waste Connections: trash and recycling, 972-289-6714.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Rockwall ISD.
- Driver license: Texas DPS Driver License Office: Rockwall, 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 Heath 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 Heath
Typical weather near Heath, from the nearest NOAA station with a complete 1991-2020 record: Lavon Dam, about 13 miles from the city center (station elevation 510 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 93°F; January has the coolest average low, 34°F. Average daily highs reach 90°F or more in July to August. 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 563 for the month, and heating-degree days (below 65°F) peak in January at 653. 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 | 54 | 34 | 2.6 | 1 | 653 |
| Feb | 58 | 38 | 2.7 | 3 | 474 |
| Mar | 65 | 46 | 3.5 | 19 | 306 |
| Apr | 73 | 53 | 3.7 | 63 | 117 |
| May | 80 | 63 | 4.7 | 217 | 19 |
| Jun | 88 | 70 | 4.1 | 429 | 0 |
| Jul | 92 | 73 | 1.9 | 552 | 0 |
| Aug | 93 | 73 | 2.2 | 563 | 0 |
| Sep | 87 | 66 | 3.1 | 345 | 6 |
| Oct | 77 | 55 | 4.4 | 111 | 87 |
| Nov | 65 | 45 | 3.4 | 15 | 325 |
| Dec | 56 | 36 | 3.5 | 2 | 589 |
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 Heath, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00415094.
What is different about electricity in Heath?
- Heath counted about 11,671 residents in the Census Bureau's 2025 estimate, against 9,647 in the 2020 base, a change of +21.0%. The largest one-year change was +641 people, from July 2022 to July 2023. July 1 estimates in between: 10,139 (2021), 10,604 (2022), 11,245 (2023), 11,473 (2024). (Census)
- Heath covers 12.4 square miles of land and 0.2 square miles of water (Census 2025 Gazetteer). That works out to about 944 residents and 288 occupied households per square mile of land, with roughly 3.3 residents for every Heath household. (Census, Census, Census)
- Heath-addressed homes make up 0.1% of the 3,564,530 residential meters on Oncor's competitive system. (ERCOT)
- ERCOT's daily extracts logged 11 newly created home meters in the ZIP codes most Heath homes use between Oct. 7 and Oct. 18, 2026; the busiest was 75126 with 7. Another 34 went from vacant to active over the same days. (ERCOT)
- Vacancy signal: 4.3 percent of residential meters in Heath's core ZIP codes were de-energized on October 5, 2026 (1,253 off, 27,600 on), per ERCOT. (ERCOT)
- 92 percent of Heath's competitive homes (4,015 of 4,375) are in 75032; counting every address in that ZIP, ERCOT has 1.02 meters for each Census household. (ERCOT, Census)
- Heath is 8 of 10 on a Rockwall County list of cities and towns ranked by postal-city competitive homes; the next one up is Fate, at 6,337. (ERCOT)
- By the Census Bureau's 2025 estimates, Heath is the number 8 city or town by population among the 10 that reach into Rockwall County, one place ahead of McLendon-Chisholm (5,629 residents). (Census)
- Mailing cities on the 13,473 competitive home meters in 75032, Heath's main ZIP code: Rockwall 8,792, Heath 4,015, Mclendon Chisholm 606, Fate 60. A mailing city is not a city limit, so the service address, not the postal name, settles which utility serves a home. (ERCOT)
- Coverage gap: 75126, home to 360 Heath-addressed meters, has 0.57 ERCOT meters for each household the Census counts there. That fits co-op service: EIA's 2024 lists for the counties tied to the ZIP include 3 co-ops, such as the Trinity Valley, HILCO, and Farmers co-ops. Co-op homes stay off the competitive market unless their co-op opts in. (ERCOT, Census, EIA-861)
- Income spread across Heath's core ZIP codes (ACS 2020-2024): 75032 at a $135,742 median, 75126 at $103,673. Bills over $250 a month: 45.2 percent of households in the first, 28.7 percent in the second. (Census)
- By land area, 84% of Heath lies in ZIP 75032 and 16% in 75126 (Census 2020 ZCTA-to-place file); 2 ZIP codes cover at least 5% of the city each. (Census)
Heath electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 11,671 |
| Population (2020 estimates base) | 9,647 |
| Occupied households (ACS 2020-2024) | 3,559 |
| Active residential meters with a Heath address | 4,385 |
| Active business meters with a Heath address | 590 |
| Residential meters per Census household | 1.23 |
| Delivery utilities (homes) | Oncor 4,385 |
| Counties | Rockwall, Kaufman |
| ZIP codes touching Heath | 2 |
| Split ZIP codes (flagged below) | 1 |
How we built these numbers. Download: Heath ZIP table (CSV).
What do electricity plans cost in Heath right now?
Same-day medians for Oncor’s area (Oncor: 170 listings), delivery included; not a quote.
| Delivery utility | 500 kWh | 1,000 kWh | 2,000 kWh | Delivery charge |
|---|---|---|---|---|
| Oncor | 14.1¢ | 13.4¢ | 13.2¢ | 6.8673¢/kWh + $4.06/mo (effective October 4, 2026; tariff) |
Heath 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 | Meters per household | ERCOT competitive homes | Census households | With Heath address | Share of ZIP land in Heath | Mailing cities | Reading |
|---|---|---|---|---|---|---|---|
| 75126 | 0.57 | 14,127 | 24,912 | 360 | 2% | Forney 97%, Heath 3% | Split. Partial coverage. Mostly outside Heath city limits. |
| 75032 | 1.02 | 13,473 | 13,250 | 4,015 | 22% | Rockwall 65%, Heath 30%, Mclendon Chisholm 4% | Near-full coverage. |
Split ZIP codes for Heath: 75126.
Homes, renters and electric bills in Heath’s ZIP codes
ZIP 75032 leads Heath on electric bills over $250 a month, reported by 45.2 percent of its households; 75126 the most homes built since 2020, 19.5 percent (Census ACS 2020-2024).
| ZIP | Bills $250+ | Household income (median) | Built since 2020 | Heath-addressed homes | Renting | Meters added Oct 7-18 | In 5+ unit buildings | Vacant-to-active switches |
|---|---|---|---|---|---|---|---|---|
| 75032 | 45.2% | $135,742 | 7.1% | 4,015 | 20.3% | 4 | 6.2% | 9 |
| 75126 | 28.7% | $103,673 | 19.5% | 360 | 19.5% | 7 | 4.5% | 25 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Heath and its neighbors
| Nearby town (2,000+ residents) | Wires utility | Can homes choose? | Postal-city meters per household | Distance | Competitive homes, postal city |
|---|---|---|---|---|---|
| McLendon-Chisholm | Oncor | Some areas | 0.44 | 4 mi away | 606 homes |
| Rockwall | Oncor | Yes, mostly | 1.10 | 5 mi away | 20,168 homes |
| Rowlett | Oncor | Yes, mostly | 1.14 | 7 mi away | 26,540 homes |
| Sunnyvale | Oncor | Yes, mostly | 1.14 | 7 mi away | 2,935 homes |
| Forney | Oncor | Yes, mostly | 1.40 | 8 mi away | 13,726 homes |
| Fate | Oncor | Yes, mostly | 0.94 | 8 mi away | 6,337 homes |
Business electricity in Heath
Heath business meters: 590 (7.4 homes per business meter); large non-residential meters in Heath’s main ZIP codes: 9 (ERCOT, October 5, 2026).
Larger accounts can go out to bid with retail providers and direct suppliers; we can’t promise savings or bids.
How do I compare electricity plans in Heath?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Heath
Can I choose my electricity provider in Heath?
Yes, where Oncor's wires reach the house, which in Heath is most of the city: 4,385 homes with a Heath mailing address were on the competitive market on October 5, 2026, 1.23 for each Census household. Addresses in 75126 (split) need an exact-address check before you shop.
Which Heath ZIP code has the most homes on the competitive market?
75032. It holds 4,015 Heath-addressed competitive homes; counting every address in the ZIP, ERCOT has 13,473 meters for roughly 13,250 households, a 1.02 ratio. The weakest coverage among Heath's ZIP codes: 75126, 0.57.
Which part of Heath has the highest electric bills?
75032 has the highest share of $250-plus monthly electric bills among Heath's core ZIP codes (45.2 percent of households, ACS 2020-2024); 75126 has 28.7 percent. Bigger and all-electric homes push the share up.
How do I start electric service at a new Heath address?
15.9% of 75126 residents moved within a year (ACS), and 25 meters in 75126 turned from vacant to active Oct. 7-18, 2026. Check that your Heath address is on Oncor's wires, then choose a plan and start date.
Why does my Heath home have a Rockwall address?
75032 covers part of Heath, but the Postal Service names most of it Rockwall: that postal city is on 65 percent of the ZIP's 13,473 competitive home meters, Heath on 30 percent. Your mailing city is not your city limits; the service address decides the utility.
Who do I call in Heath when the power goes out?
Call Oncor (oncor.com/outages), the wires utility for Heath's 4,385 competitive homes; a retail provider can't fix lines.
Where to next?
Up: Oncor area · Rockwall County · Kaufman County
Nearest town pages: Rockwall · Rowlett · Sunnyvale · Forney · Fate · Mesquite · Garland · Sachse
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)
- Oncor Electric Delivery
- Oncor delivery tariff (effective October 4, 2026)
- Census Bureau 2025 Gazetteer Files, Texas places (land and water area)
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