# Texas City, Texas electricity: TNMP wires, 3 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:** Every Texas City-addressed home in ERCOT's competitive data is on TNMP's wires (24,149 active residential meters, October 5, 2026). Most Texas City addresses can choose a retail provider, but 3 of the ZIP codes below are split, so check your exact address.

## Moving to Texas City

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

- **City hall (ask about water service):** City of Texas City: City Hall (main line), 409-948-3111.
- **Natural gas:** CenterPoint Energy: gas customer service (Houston area), 713-659-2111.
- **Public schools:** Dickinson ISD, Galveston ISD, Texas City ISD and 2 more on the move-in page.
- **Driver license:** Texas DPS Driver License Office: Texas City, 512-424-2600.

## Who delivers electricity in Texas City?
Every Texas City-addressed home in ERCOT's competitive data is on TNMP's wires (24,149 active residential meters, October 5, 2026).

## Can every address in Texas City choose?
Of the 24,149 Texas City-addressed competitive homes we can place by ZIP code, 2,230 (9%) are in the split ZIP codes 77568, 77539, 77510; on those streets, a neighbor may be on a different utility. The ZIP table below marks each one.

## What is different about Texas City?
- Census estimates put Texas City at 59,733 residents on July 1, 2025, up 15.2% from a 2020 estimates base of 51,867. (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- ERCOT's daily files added 120 new residential meters in Texas City's main ZIP codes between Oct. 7 and Oct. 18, 2026, 81 of them in 77539. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Texas City-addressed business meters number 2,928 in ERCOT's Oct. 5 extract, one for every 8.2 homes. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- 49% of Texas City-addressed competitive homes (11,933 of 24,149) are in ZIP 77590, where competitive meters run 0.93 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 11 cities and towns that touch Galveston County, Texas City ranks 3 by competitive homes on its postal city in ERCOT's data, behind League City (40,501). (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Renters make up 47.6% of households in 77590, the highest share among Texas City's main ZIP codes (ACS 2020-2024), so many Texas City 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): 59,733
- Population (2020 estimates base): 51,867
- Occupied households (ACS 2020-2024): 21,845
- Active residential meters with a Texas City address: 24,149
- Active business meters with a Texas City address: 2,928
- Residential meters per Census household: 1.11
- Delivery utilities (homes): TNMP 24,149
- Counties: Galveston, Chambers
- ZIP codes touching Texas City: 6
- Split ZIP codes (flagged below): 3

## 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

## 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 |
|---|---|---|---|---|---|---|
| 77539 | Dickinson 95%, Texas City 5% | 48% | 17,623 | 17,813 | 0.99 | Split. Near-full coverage. Two delivery utilities: TNMP 12,540, CenterPoint 5,083 homes. 81 new residential meters Oct 7-18, 2026. |
| 77590 | Texas City 100% | 98% | 11,933 | 12,900 | 0.93 | Near-full coverage.  |
| 77591 | Texas City 100% | 99% | 9,986 | 6,985 | 1.43 | Near-full coverage.  |
| 77568 | La Marque 88%, Texas City 12% | 14% | 9,209 | 9,006 | 1.02 | Split. Near-full coverage. Two delivery utilities: TNMP 7,341, CenterPoint 1,868 homes. 22 new residential meters Oct 7-18, 2026. |
| 77510 | Santa Fe 97%, Texas City 3% | 0% | 6,643 | 5,441 | 1.22 | Split. Near-full coverage. Two delivery utilities: CenterPoint 6,413, TNMP 230 homes. Mostly outside Texas City city limits. |
| 77518 | Bacliff 100% | 22% | 3,977 | 3,650 | 1.09 | Near-full coverage.  |

## Business electricity in Texas City
2,928 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 Texas City residents pick their own electric company?** Yes, if TNMP delivers to your address. ERCOT lists 24,149 Texas City-addressed homes on the competitive market (October 5, 2026), about 1.11 per Census household. 3 of the ZIP codes touching Texas City are split (77568, 77539, 77510), so check your exact address.
**What is the biggest Texas City ZIP code for electricity customers?** 77590. ERCOT lists 11,933 competitive residential meters there, 11,933 with a Texas City address, against about 12,900 Census households in the ZIP (ratio 0.93).
**Are electric bills high in Texas City?** It varies by ZIP code. In the Census survey (ACS 2020-2024), 52.4% of households in 77510 reported paying $250 or more a month for electricity, the highest share among Texas City's main ZIP codes, against 29.7% in 77568. Home size, age and heating type drive much of that, so compare plans at your own usage.
**Why does my Texas City home have a Dickinson address?** ZIP 77539 is shared. In ERCOT's data, 95% of its 17,623 competitive residential meters use Dickinson as the postal city and 5% use Texas City. Mailing city and city limits are different things; the service address decides which utility serves you.
**Who do I call in Texas City when the power goes out?** TNMP, which delivers to all 24,149 Texas City-addressed homes in ERCOT's competitive data, not your retail provider. tnmp.com.

## 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/
- TNMP delivery tariff (effective September 13, 2026): https://tnmp.com/sites/default/files/inline-images/TNMP%20Retail%20Tariff%20%2858964%29.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 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 (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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