Wilmer, Texas electricity: Oncor wires and 3,165 competitive homes
3,165 Wilmer-addressed homes buy power on Oncor's system, about 1.74 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 3,165 active residential meters with a Wilmer address, all on Oncor's wires (October 5, 2026). Nearly every Wilmer address in our data is on Oncor's wires and can pick a retail provider.
Who delivers electricity in Wilmer?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Wilmer choose an electricity provider?
No split flag on any ZIP code that holds Wilmer's 3,163 competitive homes; most streets here can shop.
Without retail choice unless opted in: 3 other utilities in Dallas County (EIA 2024).
Moving to Wilmer
Local numbers for setting up a home in Wilmer, each checked on the official source. More contacts, and a printable list, are on Wilmer helpful move-in information.
- Water and utility billing: City of Wilmer: utility billing, 972-441-6373.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Dallas ISD.
- Driver license: Texas DPS Driver License Office: Dallas-South Mega Center, 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 Wilmer 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.
What is different about electricity in Wilmer?
- Wilmer counted about 6,768 residents in the Census Bureau's 2025 estimate, against 5,727 in the 2020 base, a change of +18.2%. The largest one-year change was +335 people, from July 2021 to July 2022. July 1 estimates in between: 6,061 (2021), 6,396 (2022), 6,682 (2023), 6,713 (2024). (Census)
- Wilmer covers 12.2 square miles of land (Census 2025 Gazetteer). That works out to about 553 residents and 148 occupied households per square mile of land, with roughly 3.7 residents for every Wilmer household. (Census, Census, Census)
- Mailing addresses stretch past city limits here. 3,165 competitive residential meters use Wilmer as their postal city, while the city itself has 1,815 Census households, a ratio of 1.74. Because Wilmer has grown 18 percent since the 2020 base, the ACS 2020-2024 household figure likely runs behind today's count. (ERCOT, Census)
- Oncor delivers to 3,564,530 competitive homes in all; the 3,165 with a Wilmer address are 0.09 percent of them, roughly one in 1,126. (ERCOT)
- On October 5, 2026, ERCOT showed 266 home meters switched off (de-energized) in the ZIP codes most Wilmer homes use, against 3,055 switched on; that 8.0 percent is mostly vacant houses and apartments between occupants. (ERCOT)
- Most Wilmer electricity customers live in 75172: 3,027 homes, or 96 percent of the 3,163 with a Wilmer address; the full ZIP comes to 1.75 meters a household. (ERCOT, Census)
- Wilmer is 26 of 30 on a Dallas County list of cities and towns ranked by postal-city competitive homes; the next one up is Highland Park, at 3,453. (ERCOT)
- By the Census Bureau's 2025 estimates, Wilmer is the number 27 city or town by population among the 31 that reach into Dallas County, one place ahead of Ovilla (4,808 residents). (Census)
- Mailing cities on the 3,055 competitive home meters in 75172, Wilmer's main ZIP code: Wilmer 3,027, Hutchins 28. A mailing city is not a city limit, so the service address, not the postal name, settles which utility serves a home. (ERCOT)
- Renting is most common in 75172, where the ACS 2020-2024 counts 43.3 percent of households as renters; in that part of Wilmer, electricity accounts change hands with each lease. (Census)
- Electric bills over $250 a month: 30.1 percent of households in 75172, Wilmer's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $59,457. (Census)
- Wilmer's land splits across 2 main ZIP codes, led by 75172 (82%) and 75146 (15%), per the Census 2020 ZCTA-to-place relationship file. (Census)
Wilmer electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 6,768 |
| Population (2020 estimates base) | 5,727 |
| Occupied households (ACS 2020-2024) | 1,815 |
| Active residential meters with a Wilmer address | 3,165 |
| Active business meters with a Wilmer address | 449 |
| Residential meters per Census household | 1.74 |
| Delivery utilities (homes) | Oncor 3,165 |
| Counties | Dallas |
| ZIP codes touching Wilmer | 3 |
| Split ZIP codes (flagged below) | 0 |
How we built these numbers. Download: Wilmer ZIP table (CSV).
What do electricity plans cost in Wilmer 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) |
Wilmer 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 Wilmer address | Share of ZIP land in Wilmer | Mailing cities | Reading |
|---|---|---|---|---|---|---|---|
| 75146 | 1.00 | 8,895 | 8,878 | 55 | 3% | Lancaster 99% | Near-full coverage. Mostly outside Wilmer city limits. |
| 75125 | 1.44 | 3,538 | 2,462 | 81 | 0% | Ferris 98%, Wilmer 2% | Near-full coverage. Mostly outside Wilmer city limits. |
| 75172 | 1.75 | 3,055 | 1,743 | 3,027 | 46% | Wilmer 99% | Near-full coverage. |
Split ZIP codes for Wilmer: none flagged.
Homes, renters and electric bills in Wilmer’s ZIP codes
ZIP 75172 leads Wilmer on electric bills over $250 a month, reported by 30.1 percent of its households; 75172 the most homes built since 2020, 32.3 percent (Census ACS 2020-2024).
| ZIP | Bills $250+ | Household income (median) | Built since 2020 | Wilmer-addressed homes | Renting | Meters added Oct 7-18 | In 5+ unit buildings | Vacant-to-active switches |
|---|---|---|---|---|---|---|---|---|
| 75172 | 30.1% | $59,457 | 32.3% | 3,027 | 43.3% | 2 | 7.4% | 8 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Wilmer and its neighbors
| Nearby town (2,000+ residents) | Wires utility | Can homes choose? | Postal-city meters per household | Distance | Competitive homes, postal city |
|---|---|---|---|---|---|
| Hutchins | Oncor | Yes, mostly | 1.15 | 4 mi away | 2,137 homes |
| Ferris | Oncor | Yes, mostly | 3.55 | 4 mi away | 3,460 homes |
| Lancaster | Oncor | Yes, mostly | 1.09 | 5 mi away | 16,093 homes |
| Red Oak | Oncor | Yes, mostly | 1.78 | 9 mi away | 9,507 homes |
| Seagoville | Oncor | Yes, mostly | 1.36 | 9 mi away | 7,174 homes |
| Balch Springs | Oncor | Yes, mostly | 1.20 | 9 mi away | 9,879 homes |
Business electricity in Wilmer
Wilmer business meters: 449 (7.0 homes per business meter); large non-residential meters in Wilmer’s main ZIP codes: 7 (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 Wilmer?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Wilmer
Can Wilmer residents pick their own electric company?
Most Wilmer homes can. ERCOT's October 5, 2026 extract has 3,165 Wilmer-addressed homes on Oncor's competitive system, compared with 1,815 households in the Census survey. No Wilmer ZIP code carries a split flag, but only an address lookup is certain.
Where do most Wilmer electricity customers live?
75172. It holds 3,027 Wilmer-addressed competitive homes; counting every address in the ZIP, ERCOT has 3,055 meters for roughly 1,743 households, a 1.75 ratio.
How much is electricity in Wilmer 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 Wilmer. How do I set up electricity?
Start with the address check: Oncor-delivered Wilmer homes choose among the plans offered there and set a start date. Turnover is real in 75172, where 11.1% moved in the past year (ACS); ERCOT logged 8 vacant-to-active meters in 75172 Oct. 7-18, 2026.
Why does my Wilmer home have a Lancaster address?
75146 covers part of Wilmer, but the Postal Service names most of it Lancaster: that postal city is on 99 percent of the ZIP's 8,895 competitive home meters, Wilmer on almost none. Your mailing city is not your city limits; the service address decides the utility.
Why are there more electric meters than households in Wilmer?
3,165 Wilmer-addressed meters against 1,815 city households is 1.74 per household: the Wilmer 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.
Where to next?
Up: Oncor area · Dallas County
Nearest town pages: Hutchins · Lancaster · Red Oak · Seagoville · Balch Springs · Glenn Heights · DeSoto · Mesquite
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.