Photo: Larry D. Moore · CC BY 4.0Living in Jarrell, TX: what to set up and who to call
Oncor delivers the power in Jarrell, but in Texas’s open market you choose the company that sells it. Tap water in most of Jarrell comes from Jarrell Schwertner WSC, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result below detection.
I’m new in town
What to set up in Jarrell, 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 Jarrell.
Power comes from Oncor
Oncor (Oncor Electric Delivery Co.), an investor-owned utility, serves all of Jarrell.
Start or move service: oncor.com · (888) 875-6279
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Jarrell Schwertner WSC
Jarrell Schwertner WSC supplies Jarrell: about 59% of residents live in its service area. City of Jarrell serves another 39%. About 4% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated surface water (EPA lists Salado WSC and Central Texas WSC and Sonterra MUD and Lone Star Rwa as sellers) and serves 9,681 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 80% of the 5,012 systems serving 3,301–10,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2023–Dec 2025, was 0.0 ppb, below the 15 ppb action level that applied. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
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. TX2460011.
11 home internet providers serve Jarrell
100% of 1,472 addresses can get 100/20 Mbps; 97% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| FiberFirst | Fiber | 98% | 5,000/5,000 |
| Optimum | Cable, Fiber | 88% | 940/35 |
| Frontier | Fiber, DSL | 61% | 7,000/7,000 |
| Centric Fiber | Fiber | 28% | 1,000/1,000 |
| Heritage Broadband | Fixed wireless | 100% | 1,000/100 |
| SOS Communications | Fixed wireless | 94% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Jarrell’s trash rules yet
Pickup rules, the dump and recycling in Jarrell.
Where your child goes to school
Public school districts and the school path by grade.
Jarrell is in Jarrell Independent School District.
C−School gradeSee 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 Nov 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Jarrell is in ZIP code 76537
ZIP codes where Jarrell residents live, with the share of the town in each.
| ZIP | Post office name | Share of Jarrell | ZIP’s residents in Jarrell |
|---|---|---|---|
| 76537 | Jarrell, TX | 99% | 16% |
A few homes fall in 78633, 78626.
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 Jarrell
Who supplies Jarrell’s drinking water, and has it had violations?
Jarrell Schwertner WSC (EPA ID TX2460011). It reported no health-based violations to EPA in the five years to October 2026; 80% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2023–Dec 2025), against a 15 ppb action level.
Who provides electricity in Jarrell?
Oncor (Oncor Electric Delivery Co.), an investor-owned utility.
What internet providers serve Jarrell?
FiberFirst, Optimum, Frontier, Centric Fiber, Heritage Broadband, SOS Communications (FCC, as of December 2025).
What ZIP codes are in Jarrell?
76537. Census 2020 ZIP Code Tabulation Areas.
What school district is Jarrell in?
Jarrell Independent School District.
How do I register to vote in Jarrell?
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 Williamson 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.