Photo: Renelibrary · CC BY-SA 4.0Living in Calvert, TX: what to set up and who to call
All of Calvert gets its mail under one ZIP code, 77837. The nearest emergency room is Falls Community Hospital and Clinic, 26.2 miles away.
I’m new in town
What to set up in Calvert, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Calvert.
Power comes from Entergy Texas
Entergy Texas (Entergy Texas Inc.), an investor-owned utility, serves all of Calvert. Its homes paid an average of 13.9¢ per kWh in 2025, about $172 a month (its average across Texas).
Start or move service: entergy-texas.com · (800) 368-3749
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from City of Calvert water system
The City of Calvert water system supplies almost all of Calvert. It draws ground water and serves 962 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 5,327 systems serving 501–1,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2022–Dec 2024, was 2.2 ppb, below the 15 ppb action level that applied. That’s higher than 75% of similar systems’ latest results.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. TX1980002.
4 home internet providers serve Calvert
99% of 602 addresses can get 100/20 Mbps; 95% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Brazos WiFi | Fiber, Fixed wireless | 95% | 1,000/300 |
| Nextlink | Fixed wireless | 98% | 400/100 |
| T-Mobile | Fixed wireless | 65% | 25/3 |
| Verizon | Fixed wireless | 20% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Calvert’s trash rules yet
Pickup rules, the dump and recycling in Calvert.
Where your child goes to school
Public school districts and the school path by grade.
Calvert is in Calvert Independent School District.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
Town hall and registering to vote
Who to call, and how to register.
Election office: FVAP local election office directory, updated Jul 2018; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Calvert is in ZIP code 77837
ZIP codes where Calvert residents live, with the share of the town in each.
| ZIP | Post office name | Share of Calvert | ZIP’s residents in Calvert |
|---|---|---|---|
| 77837 | Calvert, TX | 100% | 71% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Calvert
Who supplies Calvert’s drinking water, and has it had violations?
The City of Calvert water system (EPA ID TX1980002). It reported no health-based violations to EPA in the five years to October 2026; 78% of systems its size had none. Its latest lead 90th percentile was 2.2 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Calvert?
Entergy Texas (Entergy Texas Inc.), an investor-owned utility. Its homes paid about 13.9¢ per kWh in 2025 (EIA).
What internet providers serve Calvert?
Brazos WiFi, Nextlink, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Calvert?
77837. Census 2020 ZIP Code Tabulation Areas.
What school district is Calvert in?
Calvert Independent School District.
How do I register to vote in Calvert?
Texas has no online registration; you can register in person until 30 days before Election Day or by mail (postmarked 30 days before). Elections here are run by the Robertson County Early Voting Clerk. Check your registration at teamrv-mvp.sos.texas.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Nov 18, 2024 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.