Photo: Doug Kerr from Albany, NY, United States · CC BY-SA 2.0Living in New Windsor, MD: what to set up and who to call
Trash goes out on Wednesdays in New Windsor. Carroll County Public Schools runs the public schools in New Windsor.
I’m new in town
What to set up in New Windsor, 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 New Windsor.
Power comes from Potomac Edison
Potomac Edison (The Potomac Edison Co.), an investor-owned utility, serves 99.3% of New Windsor residents. Its homes paid an average of 15.4¢ per kWh in 2025, about $172 a month (its average across Maryland, for customers on its standard service). Maryland lets you buy power from another supplier; 2% of Potomac Edison’s home customers do, and Potomac Edison still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Town of New Windsor water system
The Town of New Windsor water system supplies almost all of New Windsor. It draws ground water and serves 1,732 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 Jan 2022–Dec 2024, was 2.8 ppb, below the 15 ppb action level that applied. That’s higher than 80% 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. MD0060008.
4 home internet providers serve New Windsor
100% of 738 addresses can get 100/20 Mbps; 86% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 2,000/250 |
| Antietam Cable | Fiber | 89% | 5,000/5,000 |
| AT&T | Fixed wireless | 87% | 100/20 |
| T-Mobile | Fixed wireless | 79% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in New Windsor is Wednesday
Pickup days, the drop-off and recycling in New Windsor, from the town’s own site.
This month
- TrashEvery week
- RecyclingEvery week, Wed
Single-stream recycling
All your recyclables go in one bin, no sorting.
- Aluminum, Tin, & Steel Cans (empty and rinsed), food & beverage containers
- Mixed paper (clean and dry); no shredded paper
- Cardboard (clean and dry)
- Plastic Bottles, Tubs, Jars, & Jugs (empty and rinsed, leave plastic lids)
- Cereal & Other Paperboard Boxes, Paper Bags, Books
- Plastic Bottles (#1-#7), Plastic Tubs, Wide-Mouth Containers (NO #6)
From newwindsormd.gov, the town’s official site, checked Oct 23, 2026; pages dated 2025-07-10, 2025-07-17. 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.
New Windsor is in Carroll County Public Schools.
ASchool 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 Aug 2025; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Mar 11, 2026.
New Windsor is in ZIP code 21776
ZIP codes where New Windsor residents live, with the share of the town in each.
| ZIP | Post office name | Share of New Windsor | ZIP’s residents in New Windsor |
|---|---|---|---|
| 21776 | New Windsor, MD | 100% | 25% |
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 New Windsor
Who supplies New Windsor’s drinking water, and has it had violations?
The Town of New Windsor water system (EPA ID MD0060008). 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 2.8 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in New Windsor?
Potomac Edison (The Potomac Edison Co.), an investor-owned utility. Its homes paid about 15.4¢ per kWh in 2025 (EIA).
What internet providers serve New Windsor?
Xfinity, Antietam Cable, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in New Windsor?
21776. Census 2020 ZIP Code Tabulation Areas.
What school district is New Windsor in?
Carroll County Public Schools.
How do I register to vote in New Windsor?
In Maryland you can register online until 21 days before Election Day, in person up to and including Election Day, or by mail (postmarked 21 days before). Elections here are run by the Carroll County Board of Elections. Check your registration at voterservices.elections.maryland.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: New Windsor’s own website (newwindsormd.gov), read Oct 23, 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 Mar 11, 2026 (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.