Electricity in Katy: compare plans for your address
Hey, Katy! Shopping for electricity can be complicated. If you’re moving, have a high bill or just need to compare, hop to a better rate.
Last updated . Written by Power Hopper.
In short: Katy, west of Houston, is on the delivery system of CenterPoint Energy Houston Electric, the transmission and distribution utility (TDU). Where retail choice applies, you pick the retail electricity provider that bills you; some rural addresses on the western edge of the area may be served by an electric co-op without choice. ERCOT lists 166,148 active residential electric meters (ESI IDs) with a Katy address (October 5, 2026). To compare, enter your ZIP code at powerhopper.energy/compare and confirm with your service address.
Watch: Hopper in Katy
Read the transcript
Video transcript
[0:00] Hey, Katy!
[0:01] Shopping electricity can be complicated.
[0:03] If you're moving, have a high bill,
[0:05] or just need to compare,
[0:06] visit powerhopper.energy
[0:08] and hop to a better rate.
Who delivers electricity in Katy?
CenterPoint Energy Houston Electric delivers the power in Katy. As the transmission and distribution utility (TDU), it owns the wires and meters; the retail provider you pick handles your plan and your bill, including CenterPoint’s delivery charges.
Delivery utility website: CenterPoint Energy
Can I choose my electricity provider in Katy?
For CenterPoint addresses, yes: every active residential meter with a Katy address in ERCOT’s data is on CenterPoint’s system. The area is growing fast and new streets appear all the time, and some rural addresses on the western edge may be served by an electric co-op that does not offer retail choice, so check your exact service address.
Wondering if a new provider would help? Read the pros and cons of switching.
How many homes in Katy are on the competitive market?
ERCOT’s TDSP ESIID Extract (data as of October 5, 2026) lists 166,148 active residential ESI IDs with a Katy postal address. All are on the CenterPoint Energy Houston Electric system. Most are in Harris County (107,555), with 49,250 in Fort Bend County.
One ESI ID (Electric Service Identifier) per metered home or apartment. City means the postal city on the service address, not city limits; city-owned utility and co-op addresses are not in the extract. Source: ERCOT TDSP ESIID Extract, data as of October 5, 2026.
Want a price benchmark first? See the latest median rates in the CenterPoint area.
What does Hopper say about Katy?
Hopper’s message for Katy: shopping for electricity can be complicated, so whether you’re moving, have a high bill or just want to compare, start with the plans available at your address.
New lease or new house? Get the move-in checklist for starting electricity. Paying more than your neighbors? Check what might be raising your bill.
Moving to Katy
Local numbers for setting up a home in Katy, each checked on the official source. More contacts, and a printable list, are on Katy helpful move-in information.
- Water and utility billing: utility billing (start, transfer or stop water service), 281-391-4801.
- Natural gas: CenterPoint Energy: gas customer service (Houston area), 713-659-2111.
- Public schools: Katy ISD.
- Driver license: Texas DPS Driver License Office: Rosenberg Mega Center (Houston 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 Katy 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 Katy
Typical weather near Katy, from the nearest NOAA station with a complete 1991-2020 record: Houston Sugarland Mem, about 16 miles from the city center (station elevation 82 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 95°F; January has the coolest average low, 45°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 631 for the month, and heating-degree days (below 65°F) peak in January at 338. 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 | 64 | 45 | 3.6 | 22 | 338 |
| Feb | 68 | 50 | 2.8 | 40 | 213 |
| Mar | 74 | 55 | 3.5 | 99 | 108 |
| Apr | 80 | 60 | 4.3 | 185 | 27 |
| May | 87 | 69 | 5.2 | 399 | 1 |
| Jun | 92 | 74 | 4.2 | 546 | 0 |
| Jul | 95 | 76 | 4.2 | 631 | 0 |
| Aug | 94 | 76 | 5.3 | 618 | 0 |
| Sep | 90 | 72 | 4.4 | 468 | 0 |
| Oct | 83 | 62 | 4.7 | 257 | 20 |
| Nov | 74 | 53 | 3.8 | 84 | 139 |
| Dec | 67 | 46 | 3.8 | 35 | 300 |
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 Katy, and not an estimate for your home. EIA source.
Sources: NOAA NCEI U.S. Climate Normals 1991-2020, station USW00012977.
A short history of Katy
- Katy was first known as Cane Island. The Missouri, Kansas and Texas Railroad built through the site by the end of 1893, and a post office opened in 1896.
- Rice farming was introduced in 1901, the discovery well of the Katy gas field was drilled in 1934, and Katy incorporated in 1945.
Summarized in our own words from Handbook of Texas Online: Katy, TX (Texas State Historical Association). It is background about the city, not a statement about electricity prices or service.
What is different about electricity in Katy?
- ERCOT's data has no postal city for Cinco Ranch (a census-designated place of about 18,611 residents, ACS 2020-2024), mostly in ZIP codes 77450 and 77494. Those homes use Katy mailing addresses, so residents there can use this page's ZIP table; there is no separate page for Cinco Ranch. (ERCOT, Census, Census)
- Population: 21,876 (2020 base) to 28,373 (July 2025), +29.7%, per Census Vintage 2025 estimates. The largest one-year change was +1,610 people, from July 2021 to July 2022. (Census)
- The Katy mailing area is bigger than the city: ERCOT lists 166,148 competitive homes under the Katy postal city, 20.92 for each of the city's 7,942 Census households. The Census household count (ACS 2020-2024) also lags a city that grew 30% since 2020. (ERCOT, Census)
- Of the 2,585,110 homes CenterPoint serves on the competitive market, 6.4% have a Katy mailing address. (ERCOT)
- New construction shows up in the meter data: 82 residential meters were added in Katy's main ZIP codes from Oct. 7 to Oct. 18, 2026, including 79 in 77493, and 211 more switched from vacant to active. (ERCOT)
- De-energized homes, usually empty or between tenants, number 3,719 in Katy's main ZIP codes, 2.2% of all 169,869 residential meters there. (ERCOT)
- Katy's biggest ZIP code for electricity customers is 77494, with 52,175 of the 166,147 competitive homes that carry a Katy address and a ZIP-wide ratio of 1.22 meters per household. (ERCOT, Census)
- By competitive homes on its postal city, Katy is number 2 of the 22 cities and towns touching Harris County, just behind Houston (1,277,704). (ERCOT)
- 31.7% of households in 77449 rent (ACS 2020-2024), the most among Katy's main ZIP codes, so a lot of Katy electricity accounts open and close with each lease. (Census)
- Median household income across Katy's main ZIP codes runs from $87,808 in 77449 to $148,720 in 77494 (ACS 2020-2024); 31.4% of 77494 households and 28.3% of 77449 households report $250+ monthly electric bills. (Census)
Homes, renters and electric bills in Katy’s ZIP codes
$250+ monthly electric bills peak in 77493 (36.4% of households); renters in 77449 (31.7%); post-2020 homes in 77493 (23.3%).
| ZIP | Katy homes | Median income | Renters | 5+ units | $250+ bills | Built 2020+ | New meters | Vacant to active |
|---|---|---|---|---|---|---|---|---|
| 77494 | 52,175 | $148,720 | 29.1% | 13.9% | 31.4% | 7.2% | 0 | 29 |
| 77449 | 48,338 | $87,808 | 31.7% | 9.9% | 28.3% | 5.8% | 3 | 45 |
| 77493 | 39,911 | $118,464 | 20.4% | 6.2% | 36.4% | 23.3% | 79 | 127 |
| 77450 | 25,723 | $106,402 | 31.2% | 18.6% | 34.2% | 0.3% | 0 | 10 |
ACS 2020-2024 by ZCTA; meters: ERCOT daily files, Oct 7-18, 2026.
Business electricity in Katy
Katy business meters: 15,450 (10.8 homes per business meter); large non-residential meters in Katy’s main ZIP codes: 45 (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.
What are some Katy ZIP codes?
Example ZIP codes for Katy, not a list of addresses that can shop; some cross city or utility lines. Meter counts cover the whole ZIP code.
| ZIP code | Area | Active residential meters (ERCOT) | Notes |
|---|---|---|---|
| 77494 | Katy | 52,175 | Cinco Ranch / west Katy; Fort Bend and Harris counties. |
| 77449 | Katy | 48,341 | North Katy (Harris County). |
| 77493 | Katy | 39,911 | City of Katy and north/west Katy. |
| 77450 | Katy | 25,723 | Cinco Ranch / Mason Creek area. |
Availability varies by service address. Enter yours to see plans.
How do I compare electricity plans in Katy?
Enter a Katy ZIP code, then your service address. If it can shop, you’ll see plans; read each plan’s Electricity Facts Label (price at your usage, base charge, credits, term, cancellation fee) before you choose.
Where to next?
More in Houston area (CenterPoint): Electricity in Houston
Other Texas regions: Electricity in Corpus Christi
Compare plans · Moving · High bill · Should I switch? · Texas rates · Texas electricity choice · All cities
Sources
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026
- PUCT broker directory (BR260201)
- PUCT: Choosing an Electric Plan
- Power to Choose (PUCT)
- Power to Choose FAQ
- CenterPoint Energy
- 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
- CenterPoint delivery tariff (effective October 1, 2026)
BJW Ventures LLC d/b/a Power Hopper | PUCT BR260201. PUCT registration is not an endorsement.
Common questions
Can every address in Katy choose an electricity provider?
Most can. Katy addresses on CenterPoint’s system can choose a retail provider, but eligibility follows the exact service address, and some rural addresses on the western edge of the area may be served by an electric co-op without retail choice. Enter your ZIP code, then your address.
How many homes in Katy have electric service on the competitive market?
ERCOT’s TDSP ESIID Extract lists 166,148 active residential electric meters (ESI IDs) with a Katy address (October 5, 2026), roughly one per home or apartment with a retail electricity provider.
Is a Katy address inside the City of Katy?
Often not. ERCOT’s extract lists 166,148 active residential meters with a Katy postal address, but in the Census 2010 ZIP-to-place file only a small share of the homes in ZIPs 77494, 77449 and 77450 were inside Katy city limits; most Katy-addressed homes are in unincorporated Harris or Fort Bend County. CenterPoint delivers the power either way.
Do the wires or the delivery utility change if I switch providers?
No. The delivery utility, CenterPoint Energy Houston Electric, keeps the same wires and still delivers the electricity, and its delivery charges still appear on your bill. Switching changes the retail provider that bills you, not the wires.