Photo: Ataraxy22 · CC BY-SA 3.0Living in New Castle, DE: what to set up and who to call
New Castle runs its own electric utility, New Castle Municipal Serv Comm. Tap water in most of New Castle comes from Municipal Services Commission, 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 New Castle, 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 Castle.
Power comes from New Castle Municipal Serv Comm
New Castle Municipal Serv Comm (New Castle Municipal Serv Comm), a municipal utility, serves all of New Castle.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Municipal Services Commission
Municipal Services Commission supplies New Castle: about 89% of residents live in its service area. Artesian Water Company serves another 11%. It draws ground water (EPA lists Artesian Water Company as seller) and serves 5,549 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. The highest in five years was 1.0 ppb. 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 (EPA’s estimate). Violations are counted by the start of their compliance period. DE0000634.
4 home internet providers serve New Castle
100% of 2,059 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| Verizon | Fiber, Fixed wireless | 94% | 2,300/2,300 |
| AT&T | Fixed wireless | 73% | 100/20 |
| T-Mobile | Fixed wireless | 65% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in New Castle
Pickup days, the drop-off and recycling in New Castle, from the town’s own site.
Single-stream recycling
All your recyclables go in one bin, no sorting.
We couldn’t find pickup days or drop-off hours. Check newcastlecity.delaware.gov →
From newcastlecity.delaware.gov, the town’s official site, checked Oct 21, 2026; pages dated 2026-06-09. 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 Castle is in Colonial School District.
CSchool 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 Sep 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
New Castle is in ZIP code 19720
ZIP codes where New Castle residents live, with the share of the town in each.
| ZIP | Post office name | Share of New Castle | ZIP’s residents in New Castle |
|---|---|---|---|
| 19720 | New Castle, DE | 100% | 9% |
19721, 19726 are P.O. box or single-organization ZIPs with no homes.
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 Castle
Who supplies New Castle’s drinking water, and has it had violations?
Municipal Services Commission (EPA ID DE0000634). 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 New Castle?
New Castle Municipal Serv Comm (New Castle Municipal Serv Comm), a municipal utility.
What internet providers serve New Castle?
Xfinity, Verizon, AT&T, T-Mobile (FCC, as of December 2025).
What ZIP codes are in New Castle?
19720. Census 2020 ZIP Code Tabulation Areas.
What school district is New Castle in?
Colonial School District.
How do I register to vote in New Castle?
In Delaware you can register online until 24 days before Election Day, in person until 24 days before Election Day, or by mail (postmarked 24 days before). Elections here are run by the Department of Elections - New Castle County Office. Check your registration at ivote.de.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 Castle’s own website (newcastlecity.delaware.gov), 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.