# Mont Belvieu, Texas electricity: CenterPoint 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:** ERCOT counts 4,539 active residential meters with a Mont Belvieu address, all on CenterPoint's wires (October 5, 2026). 1 of Mont Belvieu's ZIP codes is split, so most addresses can shop, but yours needs a check.

## Moving to Mont Belvieu

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

- **City hall (ask about water service):** City of Mont Belvieu: City Hall (main line), 281-576-2213.
- **Natural gas:** CenterPoint Energy: gas customer service (Houston area), 713-659-2111.
- **Public schools:** Barbers Hill ISD.
- **Driver license:** Texas DPS Driver License Office: Wallisville, 512-424-2600.

## Who delivers electricity in Mont Belvieu?
ERCOT counts 4,539 active residential meters with a Mont Belvieu address, all on CenterPoint's wires (October 5, 2026).

## Can every address in Mont Belvieu choose?
Split ZIP codes holding Mont Belvieu homes: 77535. They carry 998 of the 4,539 competitive homes with a Mont Belvieu address (22%); on those streets a neighbor's utility can differ from yours.

## What is different about Mont Belvieu?
- Mont Belvieu counted about 10,673 residents in the Census Bureau's 2025 estimate, against 7,730 in the 2020 base, a change of +38.1%. The largest one-year change was +697 people, from July 2022 to July 2023. July 1 estimates in between: 8,385 (2021), 8,971 (2022), 9,668 (2023), 10,197 (2024). (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Mont Belvieu covers 17.8 square miles of land and 0.3 square miles of water (Census 2025 Gazetteer). That works out to about 600 residents and 172 occupied households per square mile of land, with roughly 3.5 residents for every Mont Belvieu household. (Source: https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html, https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)
- The Mont Belvieu mailing area is bigger than the city: ERCOT lists 4,539 competitive homes under the Mont Belvieu postal city, 1.48 for each of the city's 3,061 Census households. Because Mont Belvieu has grown 38 percent since the 2020 base, the ACS 2020-2024 household figure likely runs behind today's count. (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, 0.2% have a Mont Belvieu mailing address. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- ERCOT's daily extracts logged 18 newly created home meters in the ZIP codes most Mont Belvieu homes use between Oct. 7 and Oct. 18, 2026; the busiest was 77523 with 15. Another 14 went from vacant to active over the same days. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Vacancy signal: 7.3 percent of residential meters in Mont Belvieu's core ZIP codes were de-energized on October 5, 2026 (1,325 off, 16,878 on), per ERCOT. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- 78 percent of Mont Belvieu's competitive homes (3,540 of 4,539) are in 77523; counting every address in that ZIP, ERCOT has 1.36 meters for each 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/)
- Mont Belvieu is 4 of 7 on a Chambers County list of cities and towns ranked by postal-city competitive homes; the next one up is Seabrook, at 9,699. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- By the Census Bureau's 2025 estimates, Mont Belvieu is the number 4 city or town by population among the 10 that reach into Chambers County, one place ahead of Beach City (3,438 residents). (Source: https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/cities/totals/sub-est2025_48.csv)
- Mailing cities on the 14,226 competitive home meters in 77523, Mont Belvieu's main ZIP code: Baytown 10,655, Mont Belvieu 3,540, Beach City 30. A mailing city is not a city limit, so the service address, not the postal name, settles which utility serves a home. (Source: https://www.ercot.com/misapp/GetReports.do?reportTypeId=203)
- Coverage gap: 77535, home to 998 Mont Belvieu-addressed meters, has 0.24 ERCOT meters for each household the Census counts there. That fits co-op service: EIA's 2024 lists for the counties tied to the ZIP include 2 co-ops, such as the San Bernard and Sam Houston co-ops, plus Entergy Texas outside ERCOT. Co-op homes stay off the competitive market unless their co-op opts in. (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/, https://www.eia.gov/electricity/data/eia861/)
- The ACS 2020-2024 median household income tops out in 77523 ($124,188) and bottoms out in 77535 ($84,497) among Mont Belvieu's core ZIP codes, where 45.4 and 40.9 percent of households, respectively, report electric bills above $250. (Source: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/)

## By the numbers
- Population (July 1, 2025 estimate): 10,673
- Population (2020 estimates base): 7,730
- Occupied households (ACS 2020-2024): 3,061
- Active residential meters with a Mont Belvieu address: 4,539
- Active business meters with a Mont Belvieu address: 797
- Residential meters per Census household: 1.48
- Delivery utilities (homes): CenterPoint 4,539
- Counties: Chambers, Liberty
- ZIP codes touching Mont Belvieu: 4
- Split ZIP codes (flagged below): 1

## 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 |
|---|---|---|---|---|---|---|
| 77521 | Baytown 100% | 1% | 27,233 | 24,321 | 1.12 | Near-full coverage. 52 new residential meters Oct 7-18, 2026. Mostly outside Mont Belvieu city limits. |
| 77523 | Baytown 75%, Mont Belvieu 25% | 14% | 14,226 | 10,443 | 1.36 | Near-full coverage. 15 new residential meters Oct 7-18, 2026. |
| 77535 | Dayton 62%, Mont Belvieu 38% | 1% | 2,652 | 11,219 | 0.24 | Split. Partial coverage. Split: City of Liberty (Liberty city limits cover about 3% of the ZIP's land); that utility's customers can't choose. Mostly outside Mont Belvieu city limits. |
| 77580 | — | 100% | 0 | n/a | n/a | Too few homes to rate.  |

## Business electricity in Mont Belvieu
797 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
**Is Mont Belvieu deregulated for electricity?** Yes, where CenterPoint's wires reach the house, which in Mont Belvieu is most of the city: 4,539 homes with a Mont Belvieu mailing address were on the competitive market on October 5, 2026, 1.48 for each Census household. Addresses in 77535 (split) need an exact-address check before you shop.
**What is the biggest Mont Belvieu ZIP code for electricity customers?** That is 77523, home to 3,540 of the competitive meters with a Mont Belvieu address. ZIP-wide: 14,226 ERCOT meters, about 10,443 Census households, 1.36 per household. At the other end, 77535 shows 0.24.
**Are electric bills high in Mont Belvieu?** Depends on the part of town. The ACS 2020-2024 found 45.4 percent of 77523 households paying over $250 a month for electricity and 40.9 percent in 77535. Home size, age and electric heating drive most of that gap, so compare plans at your own usage.
**How do I start electric service at a new Mont Belvieu address?** Confirm the address is on CenterPoint's wires, then pick a plan and a start date. In 77535, 16.3% of residents moved in the past year (ACS); 12 meters in 77523 went vacant-to-active Oct. 7-18, 2026.
**Why does my Mont Belvieu home have a Baytown address?** 77523 covers part of Mont Belvieu, but the Postal Service names most of it Baytown: that postal city is on 75 percent of the ZIP's 14,226 competitive home meters, Mont Belvieu on 25 percent. Your mailing city is not your city limits; the service address decides the utility.
**Why are there more electric meters than households in Mont Belvieu?** 4,539 Mont Belvieu-addressed meters against 3,061 city households is 1.48 per household: the Mont Belvieu 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.

## 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
- Census Bureau 2025 Gazetteer Files, Texas places (land and water area): https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html
- 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
- 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/
- 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 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/
- EIA-861 (2024) utility service territories by county: https://www.eia.gov/electricity/data/eia861/
- Census ACS 2020-2024 5-year, table B25003: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/

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