Seagoville, Texas electricity: Oncor wires and 7,174 competitive homes
Two questions decide electricity in Seagoville: whose wires reach your street, and what plans on Oncor's system cost right now. This page answers both from ERCOT, Census and PUCT data.
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 7,174 active residential meters with a Seagoville address, all on Oncor's wires (October 5, 2026). Nearly every Seagoville address in our data is on Oncor's wires and can pick a retail provider.
Who delivers electricity in Seagoville?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Seagoville choose an electricity provider?
None of the ZIP codes holding Seagoville's 7,170 competitive homes is flagged split, so most Seagoville streets can shop.
3 more utilities (co-op, city-owned or non-ERCOT; EIA 2024) also serve parts of Dallas County · Kaufman County; no retail choice there unless the utility opted in.
Moving to Seagoville
Local numbers for setting up a home in Seagoville, each checked on the official source. More contacts, and a printable list, are on Seagoville helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 972-287-2050.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Dallas ISD, Crandall ISD, Mesquite ISD.
- Driver license: Texas DPS Driver License Office: Garland (Dallas Metro Area), 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 Seagoville 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 Seagoville
Typical weather near Seagoville, from the nearest NOAA station with a complete 1991-2020 record: Ferris, about 11 miles from the city center (station elevation 470 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 97°F; January has the coolest average low, 36°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 617 for the month, and heating-degree days (below 65°F) peak in January at 575. 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 | 36 | 3.0 | 3 | 575 |
| Feb | 62 | 39 | 3.1 | 7 | 420 |
| Mar | 69 | 45 | 4.0 | 26 | 268 |
| Apr | 77 | 53 | 3.9 | 92 | 94 |
| May | 84 | 63 | 4.3 | 275 | 12 |
| Jun | 92 | 71 | 4.0 | 483 | 0 |
| Jul | 96 | 74 | 2.0 | 611 | 0 |
| Aug | 97 | 73 | 2.8 | 617 | 0 |
| Sep | 90 | 66 | 2.7 | 396 | 3 |
| Oct | 80 | 55 | 4.9 | 145 | 76 |
| Nov | 67 | 45 | 2.8 | 25 | 298 |
| Dec | 59 | 37 | 3.5 | 5 | 540 |
Historical weather records for Dallas County
The Texas Railroad Commission's county table lists a record low of -10°F (1899) and a record high of 115°F (1909), and a regional estimate of 30 consecutive hours as a typical longest freezing or frozen-precipitation period for Dallas County. These are historical county extremes, not Seagoville'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 Seagoville, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00413133; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Seagoville?
- Seagoville counted about 21,077 residents in the Census Bureau's 2025 estimate, against 18,458 in the 2020 base, a change of +14.2%. The largest one-year change was +949 people, from July 2024 to July 2025. (Census)
- Mailing addresses stretch past city limits here. 7,174 competitive residential meters use Seagoville as their postal city, while the city itself has 5,278 Census households, a ratio of 1.36. (ERCOT, Census)
- Oncor share: 0.2% of its 3,564,530 competitive residential meters carry a Seagoville address. (ERCOT)
- Seagoville is still adding homes: 17 new residential meters in its main ZIP codes during Oct. 7-18, 2026 (most in 75159: 17), plus 22 vacant-to-active switches. (ERCOT)
- De-energized homes, usually empty or between tenants, number 462 in Seagoville's main ZIP codes, 6.0% of all 7,731 residential meters there. (ERCOT)
- Nearly all Seagoville-addressed competitive homes (7,170) are in one ZIP code, 75159, which it shares with Dallas (99 homes). ZIP-wide, ERCOT counts 7,269 competitive meters for 6,513 Census households, a 1.12 ratio. (ERCOT, Census)
- In 75159, the ZIP holding most Seagoville homes, the ACS 2020-2024 survey finds a median household income of $72,897, 19.0% renters and 40.0% of households with $250+ monthly electric bills. (Census)
- Nearby, Mesquite (8 mi) has 1.06 competitive homes per household, while Mesquite counts 53,169 on its postal city. (ERCOT, Census)
Seagoville electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 21,077 |
| Population (2020 estimates base) | 18,458 |
| Occupied households (ACS 2020-2024) | 5,278 |
| Active residential meters with a Seagoville address | 7,174 |
| Active business meters with a Seagoville address | 1,075 |
| Residential meters per Census household | 1.36 |
| Delivery utilities (homes) | Oncor 7,174 |
| Counties | Dallas, Kaufman |
| ZIP codes touching Seagoville | 1 |
| Split ZIP codes (flagged below) | 0 |
How we built these numbers. Download: Seagoville ZIP table (CSV).
What do electricity plans cost in Seagoville 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) |
Seagoville 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 | Seagoville homes | Land in Seagoville | Postal cities | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|---|
| 75159 | 7,170 | 32% | Seagoville 99%, Dallas 1% | 7,269 | 6,513 | 1.12 | Near-full coverage. 17 new residential meters Oct 7-18, 2026. |
Split ZIP codes for Seagoville: none flagged.
Homes, renters and electric bills in Seagoville’s ZIP codes
$250+ monthly electric bills peak in 75159 (40.0% of households).
| ZIP | Seagoville homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 75159 | 7,170 | $72,897 | 19.0% | 7.1% | 40.0% | 1.6% | 17 | 22 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
How do towns near Seagoville compare?
| Town (2,000+ people) | Miles | Competitive homes | Per household | Utility | Status |
|---|---|---|---|---|---|
| Combine | 5 mi | 0 | n/a | Oncor | Most addresses can choose |
| Balch Springs | 6 mi | 9,879 | 1.20 | Oncor | Most addresses can choose |
| Crandall | 7 mi | 2,264 | 1.53 | Oncor | Most addresses can choose |
| Mesquite | 8 mi | 53,169 | 1.06 | Oncor | Most addresses can choose |
| Forney | 8 mi | 13,726 | 1.40 | Oncor | Most addresses can choose |
| Wilmer | 9 mi | 3,165 | 1.74 | Oncor | Most addresses can choose |
Business electricity in Seagoville
Seagoville business meters: 1,075 (6.7 homes per business meter); large non-residential meters in Seagoville’s main ZIP codes: 3 (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 Seagoville?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Seagoville
Can I choose my electricity provider in Seagoville?
Yes, where Oncor's wires reach the house, which in Seagoville is most of the city: 7,174 homes with a Seagoville mailing address were on the competitive market on October 5, 2026, 1.36 for each Census household. None of Seagoville's ZIP codes is flagged split, though an address check is still the only sure answer.
Where do most Seagoville electricity customers live?
75159, with 7,269 competitive homes in ERCOT's data (7,170 addressed to Seagoville) against roughly 6,513 Census households, a 1.12 ratio.
How many businesses in Seagoville are on the competitive electricity market?
Yes, where Oncor delivers: 1,075 Seagoville-addressed business meters are on the competitive market in ERCOT's data, and large accounts can also buy from commercial suppliers directly.
How do I start electric service at a new Seagoville address?
Start with the address check: Oncor-delivered Seagoville homes choose among the plans offered there and set a start date. Turnover is real in 75159, where 14.0% moved in the past year (ACS); ERCOT logged 22 vacant-to-active meters in 75159 Oct. 7-18, 2026.
Why are there more electric meters than households in Seagoville?
7,174 Seagoville-addressed meters against 5,278 city households is 1.36 per household: the Seagoville 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 do I report a Seagoville power outage?
Oncor, at oncor.com/outages: it carries power to all 7,174 Seagoville-addressed competitive homes, whatever retail provider bills them.
Where to next?
Up: Oncor area · Dallas County · Kaufman County
Nearest town pages: Balch Springs · Mesquite · Forney · Lancaster · Terrell · Dallas · Red Oak · Rowlett
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.