Royse City, Texas electricity: Oncor wires, 2 split ZIP codes to check
Royse City 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 6,912 active residential meters with a Royse City address, all on Oncor's wires (October 5, 2026). Many Royse City addresses can choose a retail provider, but not all: the ZIP codes covering Royse City's city limits average about 0.52 competitive meters per Census household, which fits co-op or other non-choice service on some streets. Check your exact address.
Who delivers electricity in Royse City?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Royse City choose an electricity provider?
6,890 of 6,890 Royse City-addressed competitive homes (100%) are in split ZIP codes (75189, 75173), where a neighbor may have a different utility.
5 more utilities (co-op, city-owned or non-ERCOT; EIA 2024) also serve parts of Rockwall County · Collin County · Hunt County; no retail choice there unless the utility opted in.
Moving to Royse City
Local numbers for setting up a home in Royse City, each checked on the official source. More contacts, and a printable list, are on Royse City helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 972-524-4700.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Royse City 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 Royse City 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 Royse City
Typical weather near Royse City, from the nearest NOAA station with a complete 1991-2020 record: Lavon Dam, about 11 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 Royse City, 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 Royse City?
- Royse City counted about 28,307 residents in the Census Bureau's 2025 estimate, against 13,582 in the 2020 base, a change of +108.4%. The largest one-year change was +4,392 people, from July 2022 to July 2023. (Census)
- Oncor share: 0.2% of its 3,564,530 competitive residential meters carry a Royse City address. (ERCOT)
- ERCOT's daily files for Oct. 7-18, 2026 show 11 brand-new residential meters across Royse City's main ZIP codes (11 of them in 75189) and 31 meters going from vacant to active. (ERCOT)
- De-energized homes, usually empty or between tenants, number 863 in Royse City's main ZIP codes, 9.6% of all 8,975 residential meters there. (ERCOT)
- Nearly all Royse City-addressed competitive homes (6,889) are in one ZIP code, 75189, which it shares with Fate (1,049 homes) and Nevada (136 homes). ZIP-wide, ERCOT counts 8,112 competitive meters for 15,743 Census households, a 0.52 ratio. (ERCOT, Census)
- By competitive homes on its postal city, Royse City is number 6 of the 10 cities and towns touching Rockwall County, just behind Wylie (14,016). (ERCOT)
- In ZIP 75189, which holds 6,889 Royse City-addressed homes, ERCOT counts only 0.52 competitive meters per Census household. EIA's 2024 data lists Denton County Electric Cooperative, Fannin County Electric Cooperative, and Farmers Electric Cooperative among others in the counties ERCOT and the Census link to that ZIP; their customers are not on the competitive market unless the utility opted in. (ERCOT, Census, EIA-861)
- In 75189, the ZIP holding most Royse City homes, the ACS 2020-2024 survey finds a median household income of $117,125, 11.5% renters and 35.3% of households with $250+ monthly electric bills. (Census)
- Nearby, McLendon-Chisholm (10 mi) has just 0.44 competitive homes per household, while Rockwall counts 20,168 on its postal city. (ERCOT, Census)
Royse City electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 28,307 |
| Population (2020 estimates base) | 13,582 |
| Occupied households (ACS 2020-2024) | 6,573 |
| Active residential meters with a Royse City address | 6,912 |
| Active business meters with a Royse City address | 726 |
| Residential meters per Census household | 1.05 |
| Delivery utilities (homes) | Oncor 6,912 |
| Counties | Rockwall, Collin, Hunt |
| ZIP codes touching Royse City | 2 |
| Split ZIP codes (flagged below) | 2 |
How we built these numbers. Download: Royse City ZIP table (CSV).
What do electricity plans cost in Royse City 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) |
Royse City 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 | Royse City homes | Land in Royse City | Postal cities | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|---|
| 75189 | 6,889 | 16% | Royse City 85%, Fate 13%, Nevada 2% | 8,112 | 15,743 | 0.52 | Split. Partial coverage. 11 new residential meters Oct 7-18, 2026. |
| 75173 | 1 | 2% | Nevada 78%, Josephine 22% | 2,422 | 3,346 | 0.72 | Split. Most homes, not all. Mostly outside Royse City city limits. |
Split ZIP codes for Royse City: 75189, 75173.
Homes, renters and electric bills in Royse City’s ZIP codes
$250+ monthly electric bills peak in 75189 (35.3% of households); post-2020 homes in 75189 (19.3%).
| ZIP | Royse City homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 75189 | 6,889 | $117,125 | 11.5% | 1.3% | 35.3% | 19.3% | 11 | 31 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
How do towns near Royse City compare?
| Town (2,000+ people) | Miles | Competitive homes | Per household | Utility | Status |
|---|---|---|---|---|---|
| Fate | 4 mi | 6,337 | 0.94 | Oncor | Most addresses can choose |
| Josephine | 6 mi | 1,049 | 0.57 | Oncor | Partly |
| Lavon | 8 mi | 3,677 | 1.77 | Oncor | Most addresses can choose |
| Rockwall | 8 mi | 20,168 | 1.10 | Oncor | Most addresses can choose |
| Caddo Mills | 9 mi | 1,461 | 1.21 | Oncor | Most addresses can choose |
| McLendon-Chisholm | 10 mi | 606 | 0.44 | Oncor | Partly |
Business electricity in Royse City
Royse City business meters: 726 (9.5 homes per business meter); large non-residential meters in Royse City’s main ZIP codes: 2 (ERCOT, October 5, 2026).
We compare retail providers and direct suppliers and can bid out high-consumption accounts, but we can’t promise savings or how many suppliers will bid. Businesses in Texas retail-choice areas can request a rate review online.
How do I compare electricity plans in Royse City?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Royse City
Can I choose my electricity provider in Royse City?
For many addresses, if Oncor delivers there: 6,912 Royse City-addressed homes are on the competitive market, yet ZIP codes inside Royse City show fewer competitive meters than households, which points to co-op service on some streets. Split ZIP codes for Royse City: 75189, 75173; on those, check the exact address.
Which Royse City ZIP code has the most homes on the competitive market?
75189, with 8,112 competitive homes in ERCOT's data (6,889 addressed to Royse City) against roughly 15,743 Census households, a 0.52 ratio.
Can businesses in Royse City choose an electricity provider?
Yes, where Oncor delivers: 726 Royse City-addressed business meters are on the competitive market in ERCOT's data, and large accounts can also buy from commercial suppliers directly.
I'm moving to Royse City. How do I set up electricity?
Confirm the address is on Oncor's wires, then pick a plan and a start date. In 75189, 13.2% of residents moved in the past year (ACS); 31 75189 meters went vacant-to-active Oct. 7-18, 2026.
Where do I report a Royse City power outage?
Oncor, at oncor.com/outages: it carries power to all 6,912 Royse City-addressed competitive homes, whatever retail provider bills them. Co-op members report outages to their co-op.
Where to next?
Up: Oncor area · Rockwall County · Collin County · Hunt County
Nearest town pages: Fate · Rockwall · Wylie · Rowlett · Sachse · Murphy · Terrell · Forney
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)
BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201. PUCT registration is not an endorsement.