Harker Heights, Texas electricity: Oncor wires and 12,170 competitive homes
Harker Heights sits on Oncor's wires. Below: ZIP by ZIP, who can shop, and what plans 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: ERCOT counts 12,170 active residential meters with a Harker Heights address, all on Oncor's wires (October 5, 2026). Nearly every Harker Heights address in our data is on Oncor's wires and can pick a retail provider.
Who delivers electricity in Harker Heights?
Outages: Oncor at oncor.com/outages.
Oncor delivery charges and area
Can every address in Harker Heights choose an electricity provider?
None of the ZIP codes holding Harker Heights's 12,147 competitive homes is flagged split, so most Harker Heights streets can shop.
3 more utilities (co-op, city-owned or non-ERCOT; EIA 2024) also serve parts of Bell County; no retail choice there unless the utility opted in.
Moving to Harker Heights
Local numbers for setting up a home in Harker Heights, each checked on the official source. More contacts, and a printable list, are on Harker Heights helpful move-in information.
- City hall (ask about water service): City of Harker Heights: City Hall (main line), 254-953-5600.
- Trash pickup: Trash and recycling service (number on the city trash page), 254-319-4996.
- Natural gas: Atmos Energy: customer service, 888-286-6700.
- Public schools: Killeen ISD.
- Driver license: Texas DPS Driver License Office: Fort Hood, 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 Harker Heights 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 Harker Heights
Typical weather near Harker Heights, from the nearest NOAA station with a complete 1991-2020 record: Killeen, about 3 miles from the city center (station elevation 815 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 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 August at 609 for the month, and heating-degree days (below 65°F) peak in January at 536. 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 | 60 | 36 | 2.5 | 3 | 536 |
| Feb | 63 | 40 | 2.2 | 9 | 387 |
| Mar | 70 | 47 | 3.3 | 33 | 236 |
| Apr | 77 | 54 | 2.2 | 89 | 80 |
| May | 84 | 63 | 4.7 | 273 | 12 |
| Jun | 92 | 70 | 3.2 | 478 | 0 |
| Jul | 96 | 72 | 2.7 | 589 | 0 |
| Aug | 97 | 73 | 1.6 | 609 | 0 |
| Sep | 90 | 67 | 3.9 | 400 | 5 |
| Oct | 80 | 56 | 3.4 | 161 | 66 |
| Nov | 69 | 46 | 2.7 | 35 | 257 |
| Dec | 60 | 38 | 2.4 | 4 | 492 |
Historical weather records for Bell County
The Texas Railroad Commission's county table lists a record low of -5°F (1989) and a record high of 112°F (2018), and a regional estimate of 24 consecutive hours as a typical longest freezing or frozen-precipitation period for Bell County. These are historical county extremes, not Harker Heights'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 Harker Heights, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USC00414792; Texas Railroad Commission, Historical Weather Data by County (2022).
What is different about electricity in Harker Heights?
- Population: 33,089 (2020 base) to 35,195 (July 2025), +6.4%, per Census Vintage 2025 estimates. The largest one-year change was +810 people, from July 2023 to July 2024. (Census)
- Of the 3,564,530 homes Oncor serves on the competitive market, 0.3% have a Harker Heights mailing address. (ERCOT)
- ERCOT's daily files for Oct. 7-18, 2026 show 23 brand-new residential meters across Harker Heights's main ZIP codes (20 of them in 76513) and 63 meters going from vacant to active. (ERCOT)
- De-energized homes, usually empty or between tenants, number 2,835 in Harker Heights's main ZIP codes, 8.3% of all 34,353 residential meters there. (ERCOT)
- ZIP 76548 holds 11,953 of the 12,147 competitive homes with a Harker Heights address (98%); across the whole ZIP there are 0.98 competitive meters per Census household. (ERCOT, Census)
- By competitive homes on its postal city, Harker Heights is number 5 of the 13 cities and towns touching Bell County, just behind Copperas Cove (16,508). (ERCOT)
- 38.6% of households in 76548 rent (ACS 2020-2024), the most among Harker Heights's main ZIP codes, so a lot of Harker Heights electricity accounts open and close with each lease. (Census)
- 76513 is Harker Heights's highest-income main ZIP (median $80,661) and 76548 the other end ($80,520), per ACS 2020-2024; $250+ electric bills: 34.0% versus 38.4% of households. (Census)
- Harker Heights's land splits across 2 main ZIP codes, led by 76548 (84%) and 76513 (16%), per the Census 2020 ZCTA-to-place relationship file. (Census)
- Of Harker Heights's six nearest towns, Killeen has the most competitive homes (64,846, 5 mi away) and Killeen the fewest per household (1.08). (ERCOT, Census)
Harker Heights electricity by the numbers
| Measure | Value |
|---|---|
| Population (July 1, 2025 estimate) | 35,195 |
| Population (2020 estimates base) | 33,089 |
| Occupied households (ACS 2020-2024) | 12,469 |
| Active residential meters with a Harker Heights address | 12,170 |
| Active business meters with a Harker Heights address | 1,234 |
| Residential meters per Census household | 0.98 |
| Delivery utilities (homes) | Oncor 12,170 |
| Counties | Bell |
| ZIP codes touching Harker Heights | 2 |
| Split ZIP codes (flagged below) | 0 |
How we built these numbers. Download: Harker Heights ZIP table (CSV).
What do electricity plans cost in Harker Heights 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) |
Harker Heights 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 | Harker Heights homes | Land in Harker Heights | Postal cities | Competitive homes (ERCOT) | Households (Census) | Ratio | What it means |
|---|---|---|---|---|---|---|---|
| 76513 | 194 | 2% | Belton 86%, Morgans Point Resort 11%, Salado 1% | 19,402 | 15,904 | 1.22 | Near-full coverage. 20 new residential meters Oct 7-18, 2026. Mostly outside Harker Heights city limits. |
| 76548 | 11,953 | 82% | Harker Heights 99%, Killeen 1% | 12,116 | 12,337 | 0.98 | Near-full coverage. |
Split ZIP codes for Harker Heights: none flagged.
Homes, renters and electric bills in Harker Heights’s ZIP codes
$250+ monthly electric bills peak in 76548 (38.4% of households).
| ZIP | Harker Heights homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 76548 | 11,953 | $80,520 | 38.6% | 5.3% | 38.4% | 3.6% | 3 | 26 |
| 76513 | 194 | $80,661 | 28.1% | 8.5% | 34.0% | 3.5% | 20 | 37 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
How do towns near Harker Heights compare?
| Town (2,000+ people) | Miles | Competitive homes | Per household | Utility | Status |
|---|---|---|---|---|---|
| Nolanville | 3 mi | 3,338 | 1.24 | Oncor | Most addresses can choose |
| Killeen | 5 mi | 64,846 | 1.08 | Oncor | Most addresses can choose |
| Belton | 10 mi | 16,718 | 2.01 | Oncor | Most addresses can choose |
| Salado | 10 mi | 4,474 | 4.86 | Oncor | Most addresses can choose |
| Morgan's Point Resort | 13 mi | 2,046 | 1.14 | Oncor | Most addresses can choose |
| Temple | 15 mi | 45,527 | 1.32 | Oncor | Most addresses can choose |
Business electricity in Harker Heights
Harker Heights business meters: 1,234 (9.9 homes per business meter); large non-residential meters in Harker Heights’s main ZIP codes: 12 (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 Harker Heights?
ZIP first, then your address; read each plan’s Electricity Facts Label before choosing.
Common questions about electricity in Harker Heights
Does Harker Heights have electricity choice?
Most Harker Heights homes can. ERCOT's October 5, 2026 extract has 12,170 Harker Heights-addressed homes on Oncor's competitive system, compared with 12,469 households in the Census survey. None of Harker Heights's ZIP codes is flagged split, though an address check is still the only sure answer.
Where do most Harker Heights electricity customers live?
ZIP 76548: 11,953 of its 12,116 competitive residential meters use a Harker Heights address, and the ZIP has about 12,337 Census households (ratio 0.98).
How many Harker Heights households have a $250 electric bill?
In 76548, 38.4% of households reported electricity bills of $250 or more a month in the ACS 2020-2024 survey, the highest among Harker Heights's main ZIP codes; in 76513 it was 34.0%. House size and heating type explain much of the difference.
How do I start electric service at a new Harker Heights address?
Confirm the address is on Oncor's wires, then pick a plan and a start date. In 76513, 17.1% of residents moved in the past year (ACS); 37 76513 meters went vacant-to-active Oct. 7-18, 2026.
Why does my Harker Heights home have a Belton address?
Because ZIP 76513 is mostly addressed to Belton: 86% of its 19,402 competitive residential meters use that postal city, and 1% use Harker Heights. Mailing city isn't city limits; the service address decides the utility.
Who do I call in Harker Heights when the power goes out?
Oncor, at oncor.com/outages: it carries power to all 12,170 Harker Heights-addressed competitive homes, whatever retail provider bills them.
Where to next?
Up: Oncor area · Bell County
Nearest town pages: Killeen · Belton · Temple · Copperas Cove · Gatesville · Taylor · Hutto · Round Rock
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.