Photo: Kej605 · CC BY-SA 3.0Living in Dewey Beach, DE: what to set up and who to call
Every home in Dewey Beach is in ZIP code 19971. Xfinity is the only wired internet provider that reaches most of Dewey Beach.
I’m new in town
What to set up in Dewey Beach, 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 Dewey Beach.
Power comes from Delmarva Power
Delmarva Power (Delmarva Power), an investor-owned utility, serves all of Dewey Beach. Its homes paid an average of 18.2¢ per kWh in 2025, about $162 a month (its average across Delaware, for customers on its standard service). Delaware lets you buy power from another supplier; 9% of Delmarva Power’s home customers do, and Delmarva Power still delivers it.
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Dewey Beach Water Department
Dewey Beach Water Department supplies Dewey Beach: about 84% of residents live in its service area. Rehoboth Beach Water Department serves another 16%. About 4% 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 Rehoboth Beach Water Department as seller) and serves 31,000 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 83% of the 3,525 systems serving 10,001–50,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2021–Dec 2023, 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 (EPA’s estimate). Violations are counted by the start of their compliance period. DE0000825.
4 home internet providers serve Dewey Beach
100% of 741 addresses can get 100/20 Mbps; 0% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| T-Mobile | Fixed wireless | 83% | 100/20 |
| Verizon | Fixed wireless | 77% | 1,000/75 |
| AT&T | Fixed wireless | 29% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Dewey Beach’s trash rules yet
Pickup rules, the dump and recycling in Dewey Beach.
Where your child goes to school
Public school districts and the school path by grade.
Dewey Beach is in Cape Henlopen 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 Sep 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Dewey Beach is in ZIP code 19971
ZIP codes where Dewey Beach residents live, with the share of the town in each.
| ZIP | Post office name | Share of Dewey Beach | ZIP’s residents in Dewey Beach |
|---|---|---|---|
| 19971 | Rehoboth Beach, DE | 100% | 2% |
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 Dewey Beach
Who supplies Dewey Beach’s drinking water, and has it had violations?
Dewey Beach Water Department (EPA ID DE0000825). It reported no health-based violations to EPA in the five years to October 2026; 83% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2021–Dec 2023), against a 15 ppb action level.
Who provides electricity in Dewey Beach?
Delmarva Power (Delmarva Power), an investor-owned utility. Its homes paid about 18.2¢ per kWh in 2025 (EIA).
What internet providers serve Dewey Beach?
Xfinity, T-Mobile, Verizon, AT&T (FCC, as of December 2025).
What ZIP codes are in Dewey Beach?
19971. Census 2020 ZIP Code Tabulation Areas.
What school district is Dewey Beach in?
Cape Henlopen School District.
How do I register to vote in Dewey Beach?
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 - Sussex 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: 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.