# Princeton, Texas electricity: Oncor wires, 1 split ZIP code to check

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

**In short:** Princeton homes in ERCOT's competitive data are on Oncor's wires (13,244) and TNMP's wires (10,090). Most Princeton addresses can choose a retail provider, but 1 of the ZIP codes below is split, so check your exact address.

## Moving to Princeton

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

- **Water and utility billing:** utility billing (start, transfer or stop water service), 972-736-2711.
- **Natural gas:** Atmos Energy: customer service, 888-286-6700.
- **Public schools:** Princeton ISD, McKinney ISD.
- **Driver license:** Texas DPS Driver License Office: McKinney, 512-424-2600.

## Who delivers electricity in Princeton?
Princeton homes in ERCOT's competitive data are on Oncor's wires (13,244) and TNMP's wires (10,090).

## Can every address in Princeton choose?
Of the 23,319 Princeton-addressed competitive homes we can place by ZIP code, 23,319 (100%) are in the split ZIP codes 75407; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.

## What is different about Princeton?
- 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 Princeton at 43,524 residents on July 1, 2025, up 156.1% from a 2020 estimates base of 16,996. (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- ERCOT lists 23,334 competitive residential meters with a Princeton mailing address, about 2.96 per Census household in the city (7,873), because the Princeton postal area reaches beyond city limits. (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/)
- ERCOT's daily files added 41 new residential meters in Princeton's main ZIP codes between Oct. 7 and Oct. 18, 2026, 41 of them in 75407. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Princeton-addressed business meters number 1,922 in ERCOT's Oct. 5 extract, one for every 12.1 homes. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)

## By the numbers
- Population (July 1, 2025 estimate): 43,524
- Population (2020 estimates base): 16,996
- Occupied households (ACS 2020-2024): 7,873
- Active residential meters with a Princeton address: 23,334
- Active business meters with a Princeton address: 1,922
- Residential meters per Census household: 2.96
- Delivery utilities (homes): Oncor 13,244; TNMP 10,090
- Counties: Collin
- ZIP codes touching Princeton: 1
- Split ZIP codes (flagged below): 1

## Plan prices (median ¢/kWh at 500 / 1,000 / 2,000 kWh)
- Oncor: 14.1 / 13.4 / 13.2; delivery 6.8673¢/kWh + $4.06/mo
- TNMP: 16.1 / 15.1 / 14.7; delivery 7.771¢/kWh + $7.56/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 |
|---|---|---|---|---|---|---|
| 75407 | Princeton 99% | 20% | 23,486 | 11,059 | 2.12 | Split. Near-full coverage. Two delivery utilities: Oncor 13,396, TNMP 10,090 homes. 41 new residential meters Oct 7-18, 2026. |

## Business electricity in Princeton
1,922 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 Princeton residents pick their own electric company?** Yes, if Oncor delivers to your address. ERCOT lists 23,334 Princeton-addressed homes on the competitive market (October 5, 2026), about 2.96 per Census household. 1 of the ZIP codes touching Princeton is split (75407), so check your exact address.
**What is the biggest Princeton ZIP code for electricity customers?** 75407. ERCOT lists 23,486 competitive residential meters there, 23,319 with a Princeton address, against about 11,059 Census households in the ZIP (ratio 2.12).
**How many businesses in Princeton are on the competitive electricity market?** Yes, on Oncor's wires. ERCOT lists 1,922 active business meters with a Princeton address, one for every 12.1 homes. Larger accounts can also buy from suppliers that sell directly to commercial customers; Power Hopper can run a competitive bid for high-consumption businesses, though we can't promise savings or how many suppliers will bid.
**Why are there more electric meters than households in Princeton?** ERCOT counts 23,334 competitive residential meters with a Princeton mailing address, about 2.96 for every Census household in the city (7,873). The Princeton postal area is bigger than the city, and new homes get a meter before the Census survey counts them. It does not mean every Princeton-area address can choose; check yours.
**Who do I call in Princeton when the power goes out?** Your delivery utility, which in Princeton depends on the street: ERCOT shows Princeton homes on Oncor (13,244) and TNMP (10,090). 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/
- Oncor Electric Delivery: https://www.oncor.com/
- Texas-New Mexico Power (TNMP): https://tnmp.com/
- Oncor delivery tariff (effective October 4, 2026): https://interchange.puc.texas.gov/Documents/59249_105_1676040.PDF
- TNMP delivery tariff (effective September 13, 2026): https://tnmp.com/sites/default/files/inline-images/TNMP%20Retail%20Tariff%20%2858964%29.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
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/
- 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

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