Electricity rates in 77837 — Calvert, TX
Homes in ZIP 77837 pay about 14.5¢ per kWh (Entergy Texas Inc., Jan–Aug 2026). The Texas average is 15.9¢ and the U.S. average 18.2¢ (Aug 2026).
In Robertson County, the poles and wires belong to Texas-New Mexico Power Co. (delivery only — it does not sell electricity). Retail electric providers averaged 16.7¢ per kWh for Texas homes in 2024 (EIA-861).
What a month of electricity costs
Monthly cost at the average price of 14.5¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.
Where ZIP 77837 is
Outlined: ZIP code area · scroll or pinch to zoomUtilities serving 77837
| Utility | Home price | Avg. bill | Customers in TX |
|---|---|---|---|
| Entergy Texas Inc. Investor Owned | 14.5¢ Jan–Aug 2026 | $165 | 457,369 |
| Navasota Valley Elec Coop, Inc. Cooperative | 15.8¢ 2024 | $148 | 19,672 |
| Heart of Texas Electric Coop Cooperative | 12.6¢ 2024 | $192 | 18,722 |
| Bartlett Electric Coop, Inc. Cooperative | 16.1¢ 2024 | $219 | 11,527 |
| City of Bryan (TX) Municipal · serves Robertson County | 11.4¢ 2024 | $128 | 58,284 |
| City of Hearne (TX) Municipal · serves Robertson County | 11.0¢ 2024 | $189 | 2,493 |
Utilities are matched to this ZIP code by NREL’s ZIP–utility table and the EIA service-territory list for Robertson County; county matches may serve only part of the area. Prices are each utility’s average residential revenue per kWh.
Texas price trend
Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the West South Central region, which includes Arkansas, Louisiana, Oklahoma, Texas.
Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.
Questions about 77837
How much does electricity cost in 77837?
About 14.5¢ per kWh for homes (Entergy Texas Inc., Jan–Aug 2026, EIA). At 900 kWh a month that is roughly $130.
Who is the electric utility for 77837?
Entergy Texas Inc., with about 457,369 residential customers in Texas; 5 other utilities also serve parts of the area.
Is electricity in TX getting more expensive?
The Texas residential average was 15.9¢ per kWh in August 2026, up 3.3% from a year earlier; the U.S. average was 18.2¢.
Can I choose my electricity supplier in TX?
In the competitive ERCOT area of Texas, yes: compare retail electric provider plans at PowerToChoose.org, the official site of the Public Utility Commission of Texas.