# Lewisville, Texas electricity: TNMP wires, 2 split ZIP codes to check

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

**In short:** Lewisville homes in ERCOT's competitive data are on TNMP's wires (44,210) and Oncor's wires (323). Most Lewisville addresses can choose a retail provider, but 2 of the ZIP codes below are split, so check your exact address.

## Moving to Lewisville

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

- **Water and utility billing:** utility billing (start, transfer or stop water service), 972-219-3440.
- **Trash pickup:** Republic Services: trash and recycling, 972-316-0789.
- **Natural gas:** Atmos Energy: customer service, 888-286-6700.
- **Public schools:** Lewisville ISD.
- **Driver license:** Texas DPS Driver License Office: Lewisville, 512-424-2600.

## Who delivers electricity in Lewisville?
Lewisville homes in ERCOT's competitive data are on TNMP's wires (44,210) and Oncor's wires (323).

## Can every address in Lewisville choose?
Of the 44,533 Lewisville-addressed competitive homes we can place by ZIP code, 8,998 (20%) are in the split ZIP codes 75077, 75056; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.

## What is different about Lewisville?
- EIA's 2024 data lists CoServ Electric (Denton County Electric Cooperative, 298,734 residential customers) in Collin and Denton counties, along with other co-ops; co-op members are not on the competitive market. (Source: https://www.eia.gov/electricity/data/eia861/, https://www.coserv.com/about/)
- Census estimates put Lewisville at 139,006 residents on July 1, 2025, up 10.6% from a 2020 estimates base of 125,664. (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Lewisville-addressed business meters number 6,544 in ERCOT's Oct. 5 extract, one for every 6.8 homes. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- 61% of Lewisville-addressed competitive homes (27,221 of 44,533) are in ZIP 75067, where competitive meters run 0.99 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/)
- Among the 36 cities and towns that touch Denton County, Lewisville ranks 5 by competitive homes on its postal city in ERCOT's data, behind Dallas (535,270). (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Renters make up 64.3% of households in 75057, the highest share among Lewisville's main ZIP codes (ACS 2020-2024), so many Lewisville addresses change hands, and electricity accounts, every year. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)

## By the numbers
- Population (July 1, 2025 estimate): 139,006
- Population (2020 estimates base): 125,664
- Occupied households (ACS 2020-2024): 51,915
- Active residential meters with a Lewisville address: 44,533
- Active business meters with a Lewisville address: 6,544
- Residential meters per Census household: 0.86
- Delivery utilities (homes): TNMP 44,210; Oncor 323
- Counties: Denton, Dallas
- ZIP codes touching Lewisville: 4
- Split ZIP codes (flagged below): 2

## Plan prices (median ¢/kWh at 500 / 1,000 / 2,000 kWh)
- TNMP: 16.1 / 15.1 / 14.7; delivery 7.771¢/kWh + $7.56/mo
- Oncor: 14.1 / 13.4 / 13.2; delivery 6.8673¢/kWh + $4.06/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 |
|---|---|---|---|---|---|---|
| 75067 | Lewisville 100% | 93% | 27,221 | 27,473 | 0.99 | Near-full coverage. Two delivery utilities: TNMP 26,898, Oncor 323 homes. |
| 75056 | The Colony 100% | 29% | 14,498 | 28,020 | 0.52 | Split. Partial coverage.  |
| 75077 | Lewisville 100% | 29% | 8,998 | 15,147 | 0.59 | Split. Partial coverage.  |
| 75057 | Lewisville 100% | 98% | 8,314 | 7,060 | 1.18 | Near-full coverage.  |

## Business electricity in Lewisville
6,544 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
**Can Lewisville residents pick their own electric company?** For most addresses, yes: 44,533 homes with a Lewisville mailing address are on the competitive market in ERCOT's October 5, 2026 data, against 51,915 Census households in the city. 2 of the ZIP codes touching Lewisville are split (75077, 75056), so check your exact address.
**What is the biggest Lewisville ZIP code for electricity customers?** 75067. ERCOT lists 27,221 competitive residential meters there, 27,221 with a Lewisville address, against about 27,473 Census households in the ZIP (ratio 0.99). Among Lewisville's main ZIP codes, 75077 has the fewest competitive meters per household, 0.59.
**How many Lewisville households have a $250 electric bill?** It varies by ZIP code. In the Census survey (ACS 2020-2024), 45.5% of households in 75077 reported paying $250 or more a month for electricity, the highest share among Lewisville's main ZIP codes, against 25.3% in 75057. Home size, age and heating type drive much of that, so compare plans at your own usage.
**Why does my Lewisville home have a The Colony address?** ZIP 75056 is shared. In ERCOT's data, 100% of its 14,498 competitive residential meters use The Colony as the postal city and almost none use Lewisville. Mailing city and city limits are different things; the service address decides which utility serves you.
**Who do I call in Lewisville when the power goes out?** Your delivery utility, which in Lewisville depends on the street: ERCOT shows Lewisville homes on TNMP (44,210) and Oncor (323). Your retail provider cannot restore power.

## 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/
- Texas-New Mexico Power (TNMP): https://tnmp.com/
- Oncor Electric Delivery: https://www.oncor.com/
- TNMP delivery tariff (effective September 13, 2026): https://tnmp.com/sites/default/files/inline-images/TNMP%20Retail%20Tariff%20%2858964%29.pdf
- Oncor delivery tariff (effective October 4, 2026): https://interchange.puc.texas.gov/Documents/59249_105_1676040.PDF
- EIA-861 (2024): Denton County Elec Coop, Inc (CoServ Electric), cooperative, 298,734 residential customers, counties Collin, Cooke, Denton, Grayson, Tarrant, Wise: https://www.eia.gov/electricity/data/eia861/
- CoServ: About (history: Denton County Electric Cooperative, founded 1937; 400,000+ combined electric and gas meters by Dec. 2020): https://www.coserv.com/about/
- 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
- 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 (via Power Hopper's Oct 18, 2026 ZIP study): https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/

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