Caddo Mills, Texas electricity: Oncor wires, 1 split ZIP code to check
1,461 Caddo Mills-addressed homes buy power on Oncor's system, about 1.21 for each Census household. Here is where choice stops, what delivery costs and where plan prices sit today.
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 1,461 active residential meters with a Caddo Mills address, all on Oncor's wires (October 5, 2026). Many Caddo Mills addresses can choose a retail provider, but not all: the ZIP codes covering Caddo Mills's city limits average about 0.40 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 Caddo Mills?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Caddo Mills choose an electricity provider?
Split ZIP codes holding Caddo Mills homes: 75135. They carry 1,461 of the 1,461 competitive homes with a Caddo Mills address (100%); on those streets a neighbor's utility can differ from yours.
Without retail choice unless opted in: 3 other utilities in Hunt County (EIA 2024).
Moving to Caddo Mills
Local numbers for setting up a home in Caddo Mills, each checked on the official source. More contacts, and a printable list, are on Caddo Mills helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 903-527-3116.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Caddo Mills ISD.
- Driver license: Texas DPS Driver License Office: Greenville, 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 Caddo Mills 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 Caddo Mills
Typical weather near Caddo Mills, from the nearest NOAA station with a complete 1991-2020 record: Greenville Kgvl Radio, about 10 miles from the city center (station elevation 545 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 98°F; January has the coolest average low, 33°F. Average daily highs reach 90°F or more in June to September. 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 645 for the month, and heating-degree days (below 65°F) peak in January at 605. 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 | 58 | 33 | 3.2 | 3 | 605 |
| Feb | 62 | 37 | 3.5 | 6 | 441 |
| Mar | 69 | 44 | 4.4 | 26 | 282 |
| Apr | 77 | 52 | 4.1 | 93 | 98 |
| May | 85 | 62 | 5.8 | 270 | 14 |
| Jun | 93 | 70 | 4.2 | 492 | 0 |
| Jul | 97 | 74 | 3.2 | 639 | 0 |
| Aug | 98 | 73 | 2.4 | 645 | 0 |
| Sep | 91 | 66 | 3.8 | 407 | 4 |
| Oct | 81 | 54 | 5.0 | 149 | 76 |
| Nov | 68 | 43 | 3.6 | 24 | 298 |
| Dec | 60 | 36 | 4.0 | 4 | 546 |
Historical weather records for Hunt County
The Texas Railroad Commission's county table lists a record low of -4°F (1930) and a record high of 116°F (1936), and a regional estimate of 30 consecutive hours as a typical longest freezing or frozen-precipitation period for Hunt County. These are historical county extremes, not Caddo Mills's monthly averages and not a forecast; the normals above describe ordinary months.
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 Caddo Mills, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00413734; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Caddo Mills?
- Population: 1,487 (2020 base) to 5,715 (July 2025), +284.3%, per Census Vintage 2025 estimates. The largest one-year change was +1,169 people, from July 2021 to July 2022. July 1 estimates in between: 2,290 (2021), 3,459 (2022), 4,149 (2023), 5,235 (2024). (Census)
- Caddo Mills covers 5.2 square miles of land (Census 2025 Gazetteer). That works out to about 1,108 residents and 233 occupied households per square mile of land, with roughly 4.8 residents for every Caddo Mills household. (Census, Census, Census)
- Oncor delivers to 3,564,530 competitive homes in all; the 1,461 with a Caddo Mills address are 0.04 percent of them, roughly one in 2,440. (ERCOT)
- On October 5, 2026, ERCOT showed 156 home meters switched off (de-energized) in the ZIP codes most Caddo Mills homes use, against 1,462 switched on; that 9.6 percent is mostly vacant houses and apartments between occupants. (ERCOT)
- One ZIP code, 75135, holds almost every Caddo Mills-addressed competitive home (1,461). Taken whole, 75135 has 0.40 competitive meters per Census household: 1,462 meters, 3,643 households. (ERCOT, Census)
- Caddo Mills is 6 of 11 on a Hunt County list of cities and towns ranked by postal-city competitive homes; the next one up is Wolfe City, at 1,504. (ERCOT)
- By the Census Bureau's 2025 estimates, Caddo Mills is the number 5 city or town by population among the 14 that reach into Hunt County, one place ahead of West Tawakoni (2,261 residents). (Census)
- Coverage gap: 75135, home to 1,461 Caddo Mills-addressed meters, has 0.40 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 5 co-ops, such as the Trinity Valley, Grayson-Collin, and Farmers co-ops. Co-op homes stay off the competitive market unless their co-op opts in. (ERCOT, Census, EIA-861)
- Electric bills over $250 a month: 41.3 percent of households in 75135, Caddo Mills's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $111,235 and the renter share at 12.8 percent. (Census)
- Neighbors differ: Royse City, about 9 miles away, has 6,912 competitive homes on its postal city, while Greenville manages 0.14 per household. (ERCOT, Census)
Caddo Mills electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 5,715 |
| Population (2020 estimates base) | 1,487 |
| Occupied households (ACS 2020-2024) | 1,203 |
| Active residential meters with a Caddo Mills address | 1,461 |
| Active business meters with a Caddo Mills address | 410 |
| Residential meters per Census household | 1.21 |
| Delivery utilities (homes) | Oncor 1,461 |
| Counties | Hunt |
| ZIP codes touching Caddo Mills | 1 |
| Split ZIP codes (flagged below) | 1 |
How we built these numbers. Download: Caddo Mills ZIP table (CSV).
What do electricity plans cost in Caddo Mills 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) |
Caddo Mills 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 Caddo Mills address | Share of ZIP land in Caddo Mills | Mailing cities | Reading |
|---|---|---|---|---|---|---|---|
| 75135 | 0.40 | 1,462 | 3,643 | 1,461 | 6% | Caddo Mills 100% | Split. Partial coverage. Mostly outside Caddo Mills city limits. |
Split ZIP codes for Caddo Mills: 75135.
Homes, renters and electric bills in Caddo Mills’s ZIP codes
ZIP 75135 leads Caddo Mills on electric bills over $250 a month, reported by 41.3 percent of its households; 75135 the most homes built since 2020, 15.1 percent (Census ACS 2020-2024).
| ZIP | Bills $250+ | Household income (median) | Built since 2020 | Caddo Mills-addressed homes | Renting | Meters added Oct 7-18 | In 5+ unit buildings | Vacant-to-active switches |
|---|---|---|---|---|---|---|---|---|
| 75135 | 41.3% | $111,235 | 15.1% | 1,461 | 12.8% | 0 | 0.6% | 2 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Caddo Mills and its neighbors
| Nearby town (2,000+ residents) | Wires utility | Can homes choose? | Postal-city meters per household | Distance | Competitive homes, postal city |
|---|---|---|---|---|---|
| Josephine | Oncor | Some areas | 0.57 | 5 mi away | 1,049 homes |
| Greenville | Oncor | Some; city utility elsewhere | 0.14 | 7 mi away | 1,705 homes |
| Royse City | Oncor | Yes, mostly | 1.05 | 9 mi away | 6,912 homes |
| Farmersville | TNMP | Some; city utility elsewhere | 2.65 | 10 mi away | 4,431 homes |
| Lavon | Oncor | Yes, mostly | 1.77 | 12 mi away | 3,677 homes |
| Fate | Oncor | Yes, mostly | 0.94 | 13 mi away | 6,337 homes |
Business electricity in Caddo Mills
Caddo Mills business meters: 410 (3.6 homes per business meter); large non-residential meters in Caddo Mills’s main ZIP codes: 1 (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 Caddo Mills?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Caddo Mills
Can Caddo Mills residents pick their own electric company?
For many addresses, if Oncor delivers there: 1,461 Caddo Mills-addressed homes are on the competitive market, yet ZIP codes inside Caddo Mills show fewer competitive meters than households, which points to co-op service on some streets. Addresses in 75135 (split) need an exact-address check before you shop.
Where do most Caddo Mills electricity customers live?
That is 75135, home to 1,461 of the competitive meters with a Caddo Mills address. ZIP-wide: 1,462 ERCOT meters, about 3,643 Census households, 0.40 per household.
What is the average electricity rate in Caddo Mills?
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 Caddo Mills. How do I set up electricity?
Confirm the address is on Oncor's wires, then pick a plan and a start date. In 75135, 13.4% of residents moved in the past year (ACS); 2 meters in 75135 went vacant-to-active Oct. 7-18, 2026.
How many Caddo Mills homes are on the competitive electricity market?
ERCOT's October 5, 2026 extract lists 1,461 competitive residential meters with a Caddo Mills mailing address and 410 business meters; ACS 2020-2024: 1,203 occupied Caddo Mills households.
Where do I report a Caddo Mills power outage?
Oncor, at oncor.com/outages: it carries power to all 1,461 Caddo Mills-addressed competitive homes, whatever retail provider bills them. Co-op members report outages to their co-op.
Where to next?
Up: Oncor area · Hunt County
Nearest town pages: Josephine · Royse City · Lavon · Fate · Rockwall · Wylie · Princeton · Heath
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)
BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201. PUCT registration is not an endorsement.