Photo: W.marsh · CC BY-SA 3.0Living in New Castle, KY: what to set up and who to call
Tap water in most of New Castle comes from New Castle Water Works, which has a clean five-year EPA record (about 22% of systems its size had a health-based violation) and a latest lead result below detection. Children in New Castle attend Henry County School District.
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 KU
KU (Kentucky Utilities Co.), an investor-owned utility, serves all of New Castle. Its homes paid an average of 11.9¢ per kWh in 2025, about $138 a month (its average across Kentucky).
Start or move service: lge-ku.com · (800) 981-0600
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from New Castle Water Works
New Castle Water Works supplies New Castle: about 71% of residents live in its service area. About 29% of homes are outside any mapped community water system, most likely on private wells, which EPA doesn’t regulate. It buys treated ground water (EPA lists Henry County Water District #2 as seller) and serves 2,100 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 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. Violations are counted by the start of their compliance period. KY0520520.
3 home internet providers serve New Castle
98% of 324 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable, Fiber | 96% | 1,000/1,000 |
| Verizon | Fixed wireless | 91% | 300/20 |
| T-Mobile | Fixed wireless | 6% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have New Castle’s trash rules yet
Pickup rules, the dump and recycling in New Castle.
Where your child goes to school
Public school districts and the school path by grade.
New Castle is in Henry County School District.
Test scores and every school: see 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 2015; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
New Castle spans 2 ZIP codes
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 |
|---|---|---|---|
| 40050 | New Castle, KY | 96% | 55% |
| 40058 | Port Royal, KY | 4% | 100% |
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?
New Castle Water Works (EPA ID KY0520520). 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 0.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in New Castle?
KU (Kentucky Utilities Co.), an investor-owned utility. Its homes paid about 11.9¢ per kWh in 2025 (EIA).
What internet providers serve New Castle?
Spectrum, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in New Castle?
40050 (96%), 40058 (4%), by share of residents. Census 2020 ZIP Code Tabulation Areas.
What school district is New Castle in?
Henry County School District.
How do I register to vote in New Castle?
In Kentucky you can register online until 29 days before Election Day, in person until 29 days before Election Day, or by mail (postmarked 29 days before). Elections here are run by the Henry County Clerk. Check your registration at vrsws.sos.ky.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.