Mansfield, Texas electricity: Oncor wires, 2 split ZIP codes to check
Most questions about electricity in Mansfield come down to two things: whose wires reach your street, and what plans on Oncor's system 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: Every Mansfield-addressed home in ERCOT's competitive data is on Oncor's wires (30,415 active residential meters, October 5, 2026). Most Mansfield addresses can choose a retail provider, but 2 of the ZIP codes below are split, so check your exact address.
Who delivers electricity in Mansfield?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Mansfield choose an electricity provider?
Of the 30,414 Mansfield-addressed competitive homes we can place by ZIP code, 75 (0%) are in the split ZIP codes 76028, 76084; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.
EIA’s 2024 data lists 5 other utilities (co-ops, city-owned or outside ERCOT) in the counties around Mansfield; they are named on Tarrant County · Ellis County · Johnson County. Their customers can’t choose unless the utility opted in.
Moving to Mansfield
Local numbers for setting up a home in Mansfield, each checked on the official source. More contacts, and a printable list, are on Mansfield helpful move-in information.
- City hall (ask about water service): City of Mansfield: City Hall (main line), 817-276-4200.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Mansfield ISD.
- Driver license: Texas DPS Driver License Office: Fort Worth East, 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 Mansfield 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 Mansfield
Typical weather near Mansfield, from the nearest NOAA station with a complete 1991-2020 record: Arlington Municipal Airport, about 7 miles from the city center (station elevation 630 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 96°F; January has the coolest average low, 37°F. Average daily highs reach 90°F or more in June 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 July at 634 for the month, and heating-degree days (below 65°F) peak in January at 553. 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 | 37 | 2.3 | 3 | 553 |
| Feb | 62 | 40 | 2.6 | 10 | 399 |
| Mar | 70 | 48 | 3.4 | 41 | 233 |
| Apr | 77 | 55 | 3.1 | 108 | 79 |
| May | 84 | 64 | 4.3 | 288 | 9 |
| Jun | 92 | 72 | 3.5 | 507 | 0 |
| Jul | 96 | 75 | 1.7 | 634 | 0 |
| Aug | 96 | 75 | 1.7 | 634 | 0 |
| Sep | 89 | 68 | 3.3 | 409 | 2 |
| Oct | 79 | 57 | 4.7 | 156 | 69 |
| Nov | 67 | 46 | 2.6 | 29 | 275 |
| Dec | 59 | 39 | 2.8 | 6 | 507 |
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 Mansfield, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USW00053907.
What is different about electricity in Mansfield?
- Census estimates put Mansfield at 84,444 residents on July 1, 2025, up 16.3% from a 2020 estimates base of 72,624. Source: Census Bureau.
- ERCOT's daily files added 22 new residential meters in Mansfield's main ZIP codes between Oct. 7 and Oct. 18, 2026, 19 of them in 76140. Source: ERCOT daily.
- Mansfield-addressed business meters number 4,284 in ERCOT's Oct. 5 extract, one for every 7.1 homes. Source: ERCOT TDSP.
- 99% of Mansfield-addressed competitive homes (30,021 of 30,414) are in ZIP 76063, where competitive meters run 1.13 per Census household. Source: ERCOT TDSP; Census ACS.
- Among the 39 cities and towns that touch Tarrant County, Mansfield ranks 5 by competitive homes on its postal city in ERCOT's data, behind Fort Worth (356,890). Source: ERCOT TDSP.
- Renters make up 31.6% of households in 76140, the highest share among Mansfield's main ZIP codes (ACS 2020-2024), so many Mansfield addresses change hands, and electricity accounts, every year. Source: Census ACS.
Mansfield electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 84,444 |
| Population (2020 estimates base) | 72,624 |
| Occupied households (ACS 2020-2024) | 25,368 |
| Active residential meters with a Mansfield address | 30,415 |
| Active business meters with a Mansfield address | 4,284 |
| Residential meters per Census household | 1.2 |
| Delivery utilities (homes) | Oncor 30,415 |
| Counties | Tarrant, Ellis, Johnson |
| ZIP codes touching Mansfield | 5 |
| Split ZIP codes (flagged below) | 2 |
How we built these numbers. Download: Mansfield ZIP table (CSV).
What do electricity plans cost in Mansfield 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) |
Mansfield 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 | Main postal cities (homes) | ZIP land inside Mansfield | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|
| 76063 | Mansfield 98%, Grand Prairie 2% | 70% | 30,506 | 26,980 | 1.13 | Near-full coverage. |
| 76028 | Burleson 87%, Fort Worth 13% | 0% | 21,555 | 27,903 | 0.77 | Split. Most homes, not all. Mostly outside Mansfield city limits. |
| 76065 | Midlothian 94%, Grand Prairie 5% | 1% | 13,598 | 15,604 | 0.87 | Near-full coverage. 28 new residential meters Oct 7-18, 2026. Mostly outside Mansfield city limits. |
| 76140 | Fort Worth 63%, Forest Hill 18%, Everman 16% | 0% | 12,577 | 9,921 | 1.27 | Near-full coverage. 19 new residential meters Oct 7-18, 2026. Mostly outside Mansfield city limits. |
| 76084 | Venus 100% | 2% | 3,166 | 3,842 | 0.82 | Split. Most homes, not all. Mostly outside Mansfield city limits. |
Split ZIP codes for Mansfield: 76028, 76084.
Homes, renters and electric bills in Mansfield’s ZIP codes
Among Mansfield’s main ZIP codes, 76140 has the largest share of households paying $250 or more a month for electricity (45.0%); 76063 has the newest housing (5.8% built in 2020 or later).
How do towns near Mansfield compare?
Within about 28 miles; whole-place estimates.
| Town | Population | Distance | Delivery utility | Status | Competitive homes (postal city) |
|---|---|---|---|---|---|
| Kennedale | 10,626 | 8 mi | Oncor | Most addresses can choose | 3,627 |
| Dalworthington Gardens | 2,276 | 8 mi | Oncor | Most addresses can choose | 859 |
| Arlington | 402,134 | 9 mi | Oncor | Most addresses can choose | 153,249 |
| Cedar Hill | 49,801 | 9 mi | Oncor | Most addresses can choose | 18,109 |
| Grand Prairie | 209,434 | 10 mi | Oncor | Most addresses can choose | 75,166 |
| Pantego | 2,440 | 10 mi | Oncor | Most addresses can choose | 997 |
Business electricity in Mansfield
ERCOT lists 4,284 active business meters with a Mansfield address, about one for every 7.1 homes, and 40 meters in ERCOT’s large non-residential class across Mansfield’s main ZIP codes.
Power Hopper compares offers from retail electric providers and direct suppliers for businesses. For high-consumption businesses, we can run a competitive bid so more than one supplier prices the same usage. 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 Mansfield?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Mansfield
Can I choose my electricity provider in Mansfield?
For most addresses, yes: 30,415 homes with a Mansfield mailing address are on the competitive market in ERCOT's October 5, 2026 data, against 25,368 Census households in the city. 2 of the ZIP codes touching Mansfield are split (76028, 76084), so check your exact address.
What is the biggest Mansfield ZIP code for electricity customers?
76063. ERCOT lists 30,506 competitive residential meters there, 30,021 with a Mansfield address, against about 26,980 Census households in the ZIP (ratio 1.13). Among Mansfield's main ZIP codes, 76028 has the fewest competitive meters per household, 0.77.
Are electric bills high in Mansfield?
It varies by ZIP code. In the Census survey (ACS 2020-2024), 45.0% of households in 76140 reported paying $250 or more a month for electricity, the highest share among Mansfield's main ZIP codes, against 43.1% in 76063. Home size, age and heating type drive much of that, so compare plans at your own usage.
Who do I call in Mansfield when the power goes out?
Oncor, which delivers to all 30,415 Mansfield-addressed homes in ERCOT's competitive data, not your retail provider. oncor.com/outages.
Where to next?
Up: Oncor area · Tarrant County · Ellis County · Johnson County
Nearest town pages: Arlington · Euless · Waxahachie · Fort Worth · North Richland Hills · Irving · Saginaw · Grapevine
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.