Givin, Amelia S., Free Library · Photo: Doug Kerr · CC BY-SA 2.0Living in Mount Holly Springs, PA: what to set up and who to call
All of Mount Holly Springs gets its mail under one ZIP code, 17065. Most homes in Mount Holly Springs have two wired internet choices, Xfinity and Brightspeed.
I’m new in town
What to set up in Mount Holly Springs, 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 Mount Holly Springs.
Water comes from Mt Holly Springs Boro Auth water system
The Mt Holly Springs Boro Auth water system supplies Mount Holly Springs: about 87% of residents live in its service area. About 13% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It draws ground water (EPA lists South Middleton Twp Water Auth as seller) and serves 3,261 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 78% of the 7,966 systems serving 1,001–3,300 people.
The latest lead result on file, the 90th percentile of homes sampled in Jul–Dec 1996, was 5.0 ppb, below the 15 ppb action level that applied. It’s from 1996: EPA has no newer result for this system.
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. PA7210037.
6 home internet providers serve Mount Holly Springs
100% of 768 addresses can get 100/20 Mbps; 71% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable, Fiber | 100% | 2,000/250 |
| Brightspeed | Fiber, DSL | 76% | 2,000/2,000 |
| PA.net | Fixed wireless | 99% | 200/50 |
| AT&T | Fixed wireless | 73% | 25/3 |
| Verizon | Fixed wireless | 69% | 25/6 |
| T-Mobile | Fixed wireless | 30% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Mount Holly Springs’ trash rules yet
Pickup rules, the dump and recycling in Mount Holly Springs.
Where your child goes to school
Public school districts and the school path by grade.
Mount Holly Springs is in Carlisle Area School District.
B−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 Jan 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Mount Holly Springs is in ZIP code 17065
ZIP codes where Mount Holly Springs residents live, with the share of the town in each.
| ZIP | Post office name | Share of Mount Holly Springs | ZIP’s residents in Mount Holly Springs |
|---|---|---|---|
| 17065 | Mount Holly Springs, PA | 100% | 47% |
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 Mount Holly Springs
Who supplies Mount Holly Springs’ drinking water, and has it had violations?
The Mt Holly Springs Boro Auth water system (EPA ID PA7210037). 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 5.0 ppb (Jul–Dec 1996), against a 15 ppb action level.
What internet providers serve Mount Holly Springs?
Xfinity, Brightspeed, PA.net, AT&T, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Mount Holly Springs?
17065. Census 2020 ZIP Code Tabulation Areas.
What school district is Mount Holly Springs in?
Carlisle Area School District.
How do I register to vote in Mount Holly Springs?
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 Cumberland 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.
- 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.