# Tomball, Texas electricity: CenterPoint wires and 44,571 competitive homes

_Updated October 19, 2026. Data: ERCOT Oct 5, 2026; Power to Choose Oct 19, 2026, 7:59 AM CT._

**In short:** ERCOT counts 44,571 active residential meters with a Tomball address, all on CenterPoint's wires (October 5, 2026). Nearly every Tomball address in our data is on CenterPoint's wires and can pick a retail provider.

## Moving to Tomball

Local numbers for setting up a home in Tomball, each checked on the official source. More contacts: https://powerhopper.energy/texas-electricity/tomball/move-in-information

- **Water and utility billing:** utility billing (start, transfer or stop water service), 281-351-5484.
- **Trash pickup:** Frontier Waste Solutions: trash and recycling, 936-258-9035.
- **Natural gas:** CenterPoint Energy: gas customer service (Houston area), 713-659-2111.
- **Public schools:** Tomball ISD.
- **Driver license:** Texas DPS Driver License Office: Spring Mega Center (Houston Metro Area), 512-424-2600.

## Who delivers electricity in Tomball?
ERCOT counts 44,571 active residential meters with a Tomball address, all on CenterPoint's wires (October 5, 2026).

## Can every address in Tomball choose?
None of the ZIP codes holding Tomball's 44,571 competitive homes is flagged split, so most Tomball streets can shop.

## What is different about Tomball?
- Tomball counted about 15,768 residents in the Census Bureau's 2025 estimate, against 12,310 in the 2020 base, a change of +28.1%. The largest one-year change was +926 people, from July 2021 to July 2022. (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Mailing addresses stretch past city limits here. 44,571 competitive residential meters use Tomball as their postal city, while the city itself has 5,213 Census households, a ratio of 8.55. The Census household count (ACS 2020-2024) also lags a city that grew 28% since 2020. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- Of the 2,585,110 homes CenterPoint serves on the competitive market, 1.7% have a Tomball mailing address. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Tomball is still adding homes: 17 new residential meters in its main ZIP codes during Oct. 7-18, 2026 (most in 77377: 14), plus 110 vacant-to-active switches. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- De-energized homes, usually empty or between tenants, number 1,828 in Tomball's main ZIP codes, 3.8% of all 47,817 residential meters there. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- ZIP 77375 holds 26,190 of the 44,571 competitive homes with a Tomball address (59%); across the whole ZIP there are 1.12 competitive meters per Census household. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- By competitive homes on its postal city, Tomball is number 8 of the 22 cities and towns touching Harris County, just behind Missouri City (47,550). (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- 30.2% of households in 77375 rent (ACS 2020-2024), the most among Tomball's main ZIP codes, so a lot of Tomball electricity accounts open and close with each lease. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- Median household income across Tomball's main ZIP codes runs from $102,488 in 77375 to $129,327 in 77377 (ACS 2020-2024); 37.9% of 77377 households and 33.1% of 77375 households report $250+ monthly electric bills. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- By land area, 89% of Tomball lies in ZIP 77375 and 11% in 77377 (Census 2020 ZCTA-to-place file); 2 ZIP codes cover at least 5% of the city each. (Source: https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/)

## By the numbers
- Population (July 1, 2025 estimate): 15,768
- Population (2020 estimates base): 12,310
- Occupied households (ACS 2020-2024): 5,213
- Active residential meters with a Tomball address: 44,571
- Active business meters with a Tomball address: 6,117
- Residential meters per Census household: 8.55
- Delivery utilities (homes): CenterPoint 44,571
- Counties: Harris, Montgomery
- ZIP codes touching Tomball: 2
- Split ZIP codes (flagged below): 0

## Plan prices (median ¢/kWh at 500 / 1,000 / 2,000 kWh)
- CenterPoint: 14 / 13.2 / 13; delivery 6.5333¢/kWh + $4.90/mo

## ZIP codes
**Not every address in these ZIP codes has retail choice; check your exact address.**

| ZIP | Postal cities | Land in city | Competitive homes | Households | Ratio | Notes |
|---|---|---|---|---|---|---|
| 77375 | Tomball 95%, The Woodlands 5% | 33% | 27,608 | 24,681 | 1.12 | Near-full coverage.  |
| 77377 | Tomball 100% | 4% | 18,381 | 13,449 | 1.37 | Near-full coverage. 14 new residential meters Oct 7-18, 2026. Mostly outside Tomball city limits. |

## Business electricity in Tomball
6,117 active business meters. Power Hopper compares offers from retail electric providers and direct suppliers; for high-consumption businesses we can run a competitive bid. No savings or bidder count is promised. Businesses in Texas retail-choice areas can request a rate review online.

## Questions
**Does Tomball have electricity choice?** Yes, where CenterPoint's wires reach the house, which in Tomball is most of the city: 44,571 homes with a Tomball mailing address were on the competitive market on October 5, 2026, 8.55 for each Census household. None of Tomball's ZIP codes is flagged split, though an address check is still the only sure answer.
**What is the biggest Tomball ZIP code for electricity customers?** 77375, with 27,608 competitive homes in ERCOT's data (26,190 addressed to Tomball) against roughly 24,681 Census households, a 1.12 ratio.
**How many Tomball households have a $250 electric bill?** In 77377, 37.9% of households reported electricity bills of $250 or more a month in the ACS 2020-2024 survey, the highest among Tomball's main ZIP codes; in 77375 it was 33.1%. House size and heating type explain much of the difference.
**I'm moving to Tomball. How do I set up electricity?** 13.0% of 77375 residents moved within a year (ACS), and 61 77377 meters turned from vacant to active Oct. 7-18, 2026. Check that your Tomball address is on CenterPoint's wires, then choose a plan and start date.
**Why are there more electric meters than households in Tomball?** 44,571 Tomball-addressed meters against 5,213 city households is 8.55 per household: the Tomball 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 Tomball power outage?** Call CenterPoint (centerpointenergy.com/outage), the wires utility for Tomball's 44,571 competitive homes; a retail provider can't fix lines.

## Sources
- ERCOT TDSP ESIID Extract (report 203): full extract as of Oct 5, 2026; daily files Oct 7-18, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year estimates (B25003 households, B01003 population): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census Vintage 2025 city and town population estimates: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv
- Census 2020 ZCTA-to-place and ZCTA-to-county relationship files: https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/
- EIA-861 (2024) utility service territories by county: https://www.eia.gov/electricity/data/eia861/
- PUCT Power to Choose residential offer export, Oct 19, 2026, 7:59 AM CT: https://www.powertochoose.org/en-us/Plan/ExportToCsv
- PUCT: Choosing an Electric Plan: https://www.puc.texas.gov/consumer-help/electricity/electric-plan/
- PUCT broker directory (BR260201): https://www.puc.texas.gov/industry/electric/directories/brk/alpha_brk/
- CenterPoint Energy Houston Electric: https://www.centerpointenergy.com/
- CenterPoint delivery tariff (effective October 1, 2026): https://ftp.puc.texas.gov/public/puct-info/industry/electric/rates/tdr/tdu/CenterPoint_Rate_Report.pdf
- Census Bureau Vintage 2025 city and town population estimates: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- ERCOT daily TDSP ESIID Extract files, Oct 7-18, 2026, via Power Hopper's Oct 18 ZIP study: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- ERCOT TDSP ESIID Extract (report 203), Oct 5, 2026: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- Census 2020 ZCTA-to-place relationship file: https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/

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