Photo: Altairisfar (Jeffrey Reed) · CC BY-SA 3.0Living in Dauphin Island, AL: what to set up and who to call
Tap water in Dauphin Island comes from Dauphin Island Water & Sewer, which has a clean five-year EPA record (about 20% of systems its size had a health-based violation) and a latest lead result of 1.0 ppb. For an emergency, Thomas Hospital is the closest ER, 24.1 miles away.
I’m new in town
What to set up in Dauphin Island, 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 Dauphin Island.
Power comes from Alabama Power
Alabama Power (Alabama Power Co), an investor-owned utility, serves all of Dauphin Island. Its homes paid an average of 17.9¢ per kWh in 2025, about $202 a month (its average across Alabama).
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Dauphin Island Water & Sewer
Dauphin Island Water & Sewer supplies almost all of Dauphin Island. It draws ground water and serves 5,802 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 2022–Dec 2024, was 1.0 ppb, below the 15 ppb action level that applied. That’s lower than 57% 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 (EPA’s estimate). Violations are counted by the start of their compliance period. AL0000971.
5 home internet providers serve Dauphin Island
100% of 2,122 addresses can get 100/20 Mbps; 87% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 99% | 1,200/35 |
| Brightspeed | Fiber, DSL | 90% | 2,000/2,000 |
| Verizon | Fixed wireless | 67% | 300/20 |
| T-Mobile | Fixed wireless | 40% | 100/20 |
| AT&T | Fixed wireless | 28% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Dauphin Island’s trash rules yet
Pickup rules, the dump and recycling in Dauphin Island.
Where your child goes to school
Public school districts and the school path by grade.
Dauphin Island is in Mobile County School District.
C−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 Apr 2024; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Dauphin Island is in ZIP code 36528
ZIP codes where Dauphin Island residents live, with the share of the town in each.
| ZIP | Post office name | Share of Dauphin Island | ZIP’s residents in Dauphin Island |
|---|---|---|---|
| 36528 | Dauphin Island, AL | 100% | 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 Dauphin Island
Who supplies Dauphin Island’s drinking water, and has it had violations?
Dauphin Island Water & Sewer (EPA ID AL0000971). 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 1.0 ppb (Jan 2022–Dec 2024), against a 15 ppb action level.
Who provides electricity in Dauphin Island?
Alabama Power (Alabama Power Co), an investor-owned utility. Its homes paid about 17.9¢ per kWh in 2025 (EIA).
What internet providers serve Dauphin Island?
Xfinity, Brightspeed, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Dauphin Island?
36528. Census 2020 ZIP Code Tabulation Areas.
What school district is Dauphin Island in?
Mobile County School District.
How do I register to vote in Dauphin Island?
In Alabama 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 Mobile County Absentee Elections Manager. Check your registration at myinfo.alabamavotes.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.