Photo: Canadian2006 · CC BY-SA 3.0Living in Sewickley Township, PA: what to set up and who to call
The Mawc Yough Plant water system reported 2 health-based violations to EPA in the last five years: a surface water treatment requirement (Surface Water Treatment Rule), disinfection byproducts (HAA5). 86% of systems its size reported none. Public schools here are run by Yough School District.
I’m new in town
What to set up in Sewickley Township, 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 Sewickley Township.
Power comes from West Penn Power
West Penn Power (West Penn Power Co.), an investor-owned utility, serves all of Sewickley Township.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Mawc Yough Plant water system
The Mawc Yough Plant water system supplies almost all of Sewickley Township. It draws surface water (EPA lists Pennsylvania American Water as seller) and serves 133,000 people in all.
2 health-based violations reported to EPA in the five years to October 2026: a surface water treatment requirement (Surface Water Treatment Rule), disinfection byproducts (HAA5), the latest beginning Oct 2022. 86% of the 332 systems serving 100,001–250,000 people had none.
The latest lead result on file, the 90th percentile of homes sampled in Jun–Sep 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. PA5260036.
4 home internet providers serve Sewickley Township
95% of 2,773 addresses can get 100/20 Mbps; 1% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 91% | 2,000/250 |
| Verizon | Fixed wireless | 70% | 300/20 |
| T-Mobile | Fixed wireless | 62% | 100/20 |
| AT&T | Fixed wireless | 48% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Sewickley Township is Monday, Tuesday, Wednesday or Thursday, depending on your street
Pickup days, the drop-off and recycling in Sewickley Township, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s day (Mon, Tue, Wed or Thu)Look up your day on sewickleytownship.org
Single-stream recycling
All your recyclables go in one bin, no sorting.
From sewickleytownship.org, the town’s official site, checked Oct 21, 2026; pages dated 2023, 2026, 2026-09-27, Updated 2024. Rules change: the town’s page is the last word. .
Where your child goes to school
Public school districts and the school path by grade.
Sewickley Township is in Yough School District.
BSchool 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 Feb 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Sewickley Township spans 9 ZIP codes
ZIP codes where Sewickley Township residents live, with the share of the town in each.
| ZIP | Post office name | Share of Sewickley Township | ZIP’s residents in Sewickley Township |
|---|---|---|---|
| 15637 | Herminie, PA | 32% | 99% |
| 15089 | West Newton, PA | 19% | 17% |
| 15642 | Irwin, PA | 18% | 2% |
| 15678 | Rillton, PA | 11% | 99% |
| 15083 | Sutersville, PA | 6% | 35% |
| 15640 | Hutchinson, PA | 5% | 100% |
| 15660 | Lowber, PA | 4% | 100% |
| 15679 | Ruffs Dale, PA | 3% | 6% |
| 15698 | Yukon, PA | 1% | 8% |
A few homes fall in 15663.
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 Sewickley Township
Who supplies Sewickley Township’s drinking water, and has it had violations?
The Mawc Yough Plant water system (EPA ID PA5260036). It reported 2 health-based violations to EPA in the five years to October 2026: a surface water treatment requirement (Surface Water Treatment Rule), disinfection byproducts (HAA5). 86% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jun–Sep 2025), against a 15 ppb action level.
Who provides electricity in Sewickley Township?
West Penn Power (West Penn Power Co.), an investor-owned utility.
What internet providers serve Sewickley Township?
Xfinity, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Sewickley Township?
15637 (32%), 15089 (19%), 15642 (18%), 15678 (11%), 15083 (6%), 15640 (5%), 15660 (4%), 15679 (3%), 15698 (1%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is Sewickley Township in?
Yough School District.
How do I register to vote in Sewickley Township?
In Pennsylvania you can register online until 15 days before Election Day, in person until 15 days before Election Day, or by mail (received 15 days before). Elections here are run by the Westmoreland County Board of Elections. Check your registration at pavoterservices.pa.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: Sewickley Township’s own website (sewickleytownship.org), read Oct 21, 2026, pickup and drop-off facts extracted and checked against the page they came from.
- 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.