Lamesa, Texas electricity: Oncor wires and 3,675 competitive homes
Lamesa: 8,103 residents, 3,409 households in the Census survey and 3,675 competitive home meters on its postal city. Here is who delivers the power, which addresses can shop and what plans cost on Oncor's wires.
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 3,675 active residential meters with a Lamesa address, all on Oncor's wires (October 5, 2026). Nearly every Lamesa address in our data is on Oncor's wires and can pick a retail provider.
Who delivers electricity in Lamesa?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Lamesa choose an electricity provider?
No split flag on any ZIP code that holds Lamesa's 3,675 competitive homes; most streets here can shop.
Without retail choice unless opted in: 2 other utilities in Dawson County (EIA 2024).
Moving to Lamesa
Local numbers for setting up a home in Lamesa, each checked on the official source. More contacts, and a printable list, are on Lamesa helpful move-in information.
- City hall (ask about water service): City of Lamesa: City Hall (main line), 806-872-2124.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Lamesa ISD.
- Driver license: Texas DPS Driver License Office: Lamesa, 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 Lamesa 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 Lamesa
Typical weather near Lamesa, from the nearest NOAA station with a complete 1991-2020 record: Lamesa 1 SSE, about 1 mile from the city center (station elevation 2,965 ft). These are normals for that station, not readings at your address. July is the warmest month on average, with a normal daily high of 94°F; January has the coolest average low, 26°F. Average daily highs reach 90°F or more in June to August. Average lows are at or below freezing in January to February and December.
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 473 for the month, and heating-degree days (below 65°F) peak in January at 752. 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 | 55 | 26 | 0.6 | 0 | 752 |
| Feb | 60 | 29 | 0.7 | 0 | 569 |
| Mar | 69 | 36 | 1.0 | 5 | 396 |
| Apr | 77 | 44 | 0.9 | 42 | 170 |
| May | 85 | 55 | 2.1 | 192 | 44 |
| Jun | 92 | 64 | 2.4 | 390 | 2 |
| Jul | 94 | 66 | 1.5 | 473 | 0 |
| Aug | 93 | 65 | 1.6 | 436 | 0 |
| Sep | 85 | 58 | 2.9 | 225 | 20 |
| Oct | 76 | 47 | 1.4 | 49 | 156 |
| Nov | 65 | 35 | 1.0 | 2 | 460 |
| Dec | 56 | 27 | 0.8 | 0 | 721 |
Historical weather records for Dawson County
The Texas Railroad Commission's county table lists a record low of -12°F (1933) and a record high of 114°F (1994), and a regional estimate of 30 consecutive hours as a typical longest freezing or frozen-precipitation period for Dawson County. These are historical county extremes, not Lamesa'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 Lamesa, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00415013; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Lamesa?
- Lamesa counted about 8,103 residents in the Census Bureau's 2025 estimate, against 8,699 in the 2020 base, a change of -6.9%. The largest one-year change was -193 people, from July 2021 to July 2022. July 1 estimates in between: 8,611 (2021), 8,418 (2022), 8,263 (2023), 8,170 (2024). (Census)
- Lamesa covers 5.1 square miles of land (Census 2025 Gazetteer). That works out to about 1,584 residents and 666 occupied households per square mile of land, with roughly 2.4 residents for every Lamesa household. (Census, Census, Census)
- Oncor share: 0.1% of its 3,564,530 competitive residential meters carry a Lamesa address. (ERCOT)
- Move-ins show up as vacant-to-active switches in ERCOT's daily files: 14 of them in the ZIP codes most Lamesa homes use, Oct. 7-18, 2026. (ERCOT)
- Vacancy signal: 17.5 percent of residential meters in Lamesa's core ZIP codes were de-energized on October 5, 2026 (778 off, 3,675 on), per ERCOT. (ERCOT)
- One ZIP code, 79331, holds almost every Lamesa-addressed competitive home (3,675). Taken whole, 79331 has 0.95 competitive meters per Census household: 3,675 meters, 3,888 households. (ERCOT, Census)
- Lamesa is 1 of 3 on a Dawson County list of cities and towns ranked by postal-city competitive homes; second place is O'Donnell, at 391. (ERCOT)
- By the Census Bureau's 2025 estimates, Lamesa is the number 1 city or town by population among the 4 that reach into Dawson County, one place ahead of O'Donnell (741 residents). (Census)
- Electric bills over $250 a month: 26.8 percent of households in 79331, Lamesa's main ZIP code, per the ACS 2020-2024; the same survey puts median household income there at $54,000 and the renter share at 29.7 percent. (Census)
Lamesa electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 8,103 |
| Population (2020 estimates base) | 8,699 |
| Occupied households (ACS 2020-2024) | 3,409 |
| Active residential meters with a Lamesa address | 3,675 |
| Active business meters with a Lamesa address | 1,246 |
| Residential meters per Census household | 1.08 |
| Delivery utilities (homes) | Oncor 3,675 |
| Counties | Dawson |
| ZIP codes touching Lamesa | 1 |
| Split ZIP codes (flagged below) | 0 |
How we built these numbers. Download: Lamesa ZIP table (CSV).
What do electricity plans cost in Lamesa 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) |
Lamesa 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 Lamesa address | Share of ZIP land in Lamesa | Mailing cities | Reading |
|---|---|---|---|---|---|---|---|
| 79331 | 0.95 | 3,675 | 3,888 | 3,675 | 1% | Lamesa 100% | Near-full coverage. Mostly outside Lamesa city limits. |
Split ZIP codes for Lamesa: none flagged.
Homes, renters and electric bills in Lamesa’s ZIP codes
ZIP 79331 leads Lamesa on electric bills over $250 a month, reported by 26.8 percent of its households (Census ACS 2020-2024).
| ZIP | Bills $250+ | Household income (median) | Built since 2020 | Lamesa-addressed homes | Renting | Meters added Oct 7-18 | In 5+ unit buildings | Vacant-to-active switches |
|---|---|---|---|---|---|---|---|---|
| 79331 | 26.8% | $54,000 | 0.6% | 3,675 | 29.7% | 0 | 2.8% | 14 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Business electricity in Lamesa
Lamesa business meters: 1,246 (2.9 homes per business meter); large non-residential meters in Lamesa’s main ZIP codes: 4 (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 Lamesa?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Lamesa
Is Lamesa deregulated for electricity?
Yes, where Oncor's wires reach the house, which in Lamesa is most of the city: 3,675 homes with a Lamesa mailing address were on the competitive market on October 5, 2026, 1.08 for each Census household. No Lamesa ZIP code carries a split flag, but only an address lookup is certain.
Which Lamesa ZIP code has the most homes on the competitive market?
79331. It holds 3,675 Lamesa-addressed competitive homes; counting every address in the ZIP, ERCOT has 3,675 meters for roughly 3,888 households, a 0.95 ratio.
How much is electricity in Lamesa 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.
How do I start electric service at a new Lamesa address?
Start with the address check: Oncor-delivered Lamesa homes choose among the plans offered there and set a start date. Turnover is real in 79331, where 23.0% moved in the past year (ACS); ERCOT logged 14 vacant-to-active meters in 79331 Oct. 7-18, 2026.
How many households in Lamesa can shop for electricity?
ERCOT's October 5, 2026 extract lists 3,675 competitive residential meters with a Lamesa mailing address and 1,246 business meters; ACS 2020-2024: 3,409 occupied Lamesa households.
Where do I report a Lamesa power outage?
Call Oncor (oncor.com/outages), the wires utility for Lamesa's 3,675 competitive homes; a retail provider can't fix lines.
Where to next?
Up: Oncor area · Dawson County
Nearest town pages: Big Spring · Andrews · Midland · Lubbock · Snyder · Odessa · Kermit · Sweetwater
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.