Sherman, Texas electricity: Oncor wires, 1 split ZIP code to check
Sherman's 22,105 competitive homes sit on Oncor's wires; here is where choice stops, what delivery costs and how plan prices look 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: Every Sherman-addressed home in ERCOT's competitive data is on Oncor's wires (22,105 active residential meters, October 5, 2026). Most Sherman addresses can choose a retail provider, but 1 of the ZIP codes below is split, so check your exact address.
Who delivers electricity in Sherman?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Sherman choose an electricity provider?
Of the 22,084 Sherman-addressed competitive homes we can place by ZIP code, 0 (0%) are in the split ZIP codes 75459; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.
EIA’s 2024 data lists 4 other utilities (co-ops, city-owned or outside ERCOT) in the county around Sherman; they are named on Grayson County. Their customers can’t choose unless the utility opted in.
Moving to Sherman
Local numbers for setting up a home in Sherman, each checked on the official source. More contacts, and a printable list, are on Sherman helpful move-in information.
- City hall (ask about water service): City of Sherman: City Hall (main line), 903-892-7206.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Sherman ISD, Howe ISD, S And S CISD and 1 more on the move-in page.
- Driver license: Texas DPS Driver License Office: Sherman, 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 Sherman 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 Sherman
Typical weather near Sherman, from the nearest NOAA station with a complete 1991-2020 record: Sherman, about 5 miles from the city center (station elevation 760 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 July at 558 for the month, and heating-degree days (below 65°F) peak in January at 675. 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 | 53 | 34 | 2.5 | 1 | 675 |
| Feb | 57 | 37 | 2.8 | 2 | 502 |
| Mar | 65 | 45 | 4.0 | 17 | 324 |
| Apr | 73 | 53 | 3.9 | 58 | 127 |
| May | 80 | 62 | 5.5 | 203 | 23 |
| Jun | 88 | 70 | 4.5 | 419 | 0 |
| Jul | 93 | 74 | 2.9 | 558 | 0 |
| Aug | 93 | 73 | 2.9 | 553 | 0 |
| Sep | 85 | 66 | 3.4 | 330 | 7 |
| Oct | 75 | 55 | 4.8 | 106 | 100 |
| Nov | 63 | 44 | 3.5 | 12 | 351 |
| Dec | 54 | 36 | 3.6 | 2 | 617 |
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 Sherman, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00418274.
What is different about electricity in Sherman?
- Census estimates put Sherman at 52,417 residents on July 1, 2025, up 20.0% from a 2020 estimates base of 43,693. Source: Census Bureau.
- ERCOT's daily files added 29 new residential meters in Sherman's main ZIP codes between Oct. 7 and Oct. 18, 2026, 15 of them in 75092. Source: ERCOT daily.
- Sherman-addressed business meters number 4,427 in ERCOT's Oct. 5 extract, one for every 5.0 homes. Source: ERCOT TDSP.
- 60% of Sherman-addressed competitive homes (13,191 of 22,084) are in ZIP 75092, where competitive meters run 1.11 per Census household. Source: ERCOT TDSP; Census ACS.
- Among the 18 cities and towns that touch Grayson County, Sherman ranks 1 by competitive homes on its postal city in ERCOT's data, ahead of Denison (14,565). Source: ERCOT TDSP.
- Renters make up 42.8% of households in 75090, the highest share among Sherman's main ZIP codes (ACS 2020-2024), so many Sherman addresses change hands, and electricity accounts, every year. Source: Census ACS.
Sherman electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 52,417 |
| Population (2020 estimates base) | 43,693 |
| Occupied households (ACS 2020-2024) | 18,304 |
| Active residential meters with a Sherman address | 22,105 |
| Active business meters with a Sherman address | 4,427 |
| Residential meters per Census household | 1.21 |
| Delivery utilities (homes) | Oncor 22,105 |
| Counties | Grayson |
| ZIP codes touching Sherman | 4 |
| Split ZIP codes (flagged below) | 1 |
How we built these numbers. Download: Sherman ZIP table (CSV).
What do electricity plans cost in Sherman 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) |
Sherman 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 Sherman | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|
| 75092 | Sherman 96%, Knollwood 4% | 25% | 13,805 | 12,491 | 1.11 | Near-full coverage. 15 new residential meters Oct 7-18, 2026. |
| 75090 | Sherman 99% | 21% | 8,934 | 9,231 | 0.97 | Near-full coverage. 14 new residential meters Oct 7-18, 2026. |
| 75459 | Howe 97%, Dorchester 3% | 1% | 1,109 | 2,097 | 0.53 | Split. Partial coverage. Mostly outside Sherman city limits. |
| 75091 | Sherman 81%, Denison 19% | 0% | 32 | n/a | n/a | PO box or special ZIP. Mostly outside Sherman city limits. |
Split ZIP codes for Sherman: 75459.
Homes, renters and electric bills in Sherman’s ZIP codes
Among Sherman’s main ZIP codes, 75092 has the largest share of households paying $250 or more a month for electricity (32.9%); 75090 has the most renters (42.8% of households).
How do towns near Sherman compare?
Within about 28 miles; whole-place estimates.
| Town | Population | Distance | Delivery utility | Status | Competitive homes (postal city) |
|---|---|---|---|---|---|
| Howe | 3,686 | 8 mi | Oncor | Most addresses can choose | 1,075 |
| Denison | 26,822 | 10 mi | Oncor | Most addresses can choose | 14,565 |
| Pottsboro | 2,767 | 10 mi | Oncor | Most addresses can choose | 5,451 |
| Van Alstyne | 8,012 | 15 mi | Oncor | Partly | 1,407 |
| Whitesboro | 4,188 | 16 mi | — | City-owned utility; no choice | 17 |
| Collinsville | 2,076 | 17 mi | Oncor | Most addresses can choose | 891 |
Business electricity in Sherman
ERCOT lists 4,427 active business meters with a Sherman address, about one for every 5.0 homes, and 24 meters in ERCOT’s large non-residential class across Sherman’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 Sherman?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Sherman
Is Sherman deregulated for electricity?
Yes, if Oncor delivers to your address. ERCOT lists 22,105 Sherman-addressed homes on the competitive market (October 5, 2026), about 1.21 per Census household. 1 of the ZIP codes touching Sherman is split (75459), so check your exact address.
Which Sherman ZIP code has the most homes on the competitive market?
75092. ERCOT lists 13,805 competitive residential meters there, 13,191 with a Sherman address, against about 12,491 Census households in the ZIP (ratio 1.11).
Which part of Sherman has the highest electric bills?
It varies by ZIP code. In the Census survey (ACS 2020-2024), 32.9% of households in 75092 reported paying $250 or more a month for electricity, the highest share among Sherman's main ZIP codes, against 31.7% in 75090. Home size, age and heating type drive much of that, so compare plans at your own usage.
Who do I call in Sherman when the power goes out?
Oncor, which delivers to all 22,105 Sherman-addressed homes in ERCOT's competitive data, not your retail provider. oncor.com/outages.
Where to next?
Up: Oncor area · Grayson County
Nearest town pages: McKinney · Princeton · Frisco · Allen · Plano · Lewisville · Richardson · 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.