Fowey Rocks Light · Photo: http://www.birdphotos.com · CC BY 3.0Living in Key Biscayne, FL: what to set up and who to call
All of Key Biscayne gets its mail under one ZIP code, 33149. For emergencies, Key Biscayne is closest to Doctors Hospital, 7.1 miles away.
I’m new in town
What to set up in Key Biscayne, 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 Key Biscayne.
Power comes from FPL
FPL (Florida Power & Light Co.), an investor-owned utility, serves all of Key Biscayne. Its homes paid an average of 14.6¢ per kWh in 2025, about $162 a month (its average across Florida).
Start or move service: www.fpl.com · (800) 375-2434
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Miami-Dade Water and Sewer Department
The Miami-Dade Water and Sewer Department supplies almost all of Key Biscayne. It draws ground water and serves 2,377,460 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 82% of the 27 systems serving more than 1,000,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan–Dec 2023, was 3.1 ppb, below the 15 ppb action level that applied. That’s higher than 72% 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. FL4130871.
4 home internet providers serve Key Biscayne
97% of 1,490 addresses can get 100/20 Mbps; 55% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable, Fiber | 100% | 2,000/250 |
| AT&T | DSL, Fiber, Fixed wireless | 96% | 5,000/5,000 |
| T-Mobile | Fixed wireless | 89% | 100/20 |
| Verizon | Fixed wireless | 56% | 300/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash and recycling in Key Biscayne
Pickup days, the drop-off and recycling in Key Biscayne, from the town’s own site.
Accepted at the curb
- Empty, clean and dry steel and aluminum cans
- Plastic bottles
- Aluminum foil
- Paper cartons
- Cereal boxes
- Newspaper
- Magazines
- Cut or folded cardboard boxes
- Glass bottles
We couldn’t find pickup days or drop-off hours. Check keybiscayne.fl.gov →
From keybiscayne.fl.gov, the town’s official site, checked Oct 21, 2026. 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.
Key Biscayne is in Dade County School District.
B+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 Sep 2026; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 17, 2025.
Key Biscayne is in ZIP code 33149
ZIP codes where Key Biscayne residents live, with the share of the town in each.
| ZIP | Post office name | Share of Key Biscayne | ZIP’s residents in Key Biscayne |
|---|---|---|---|
| 33149 | Key Biscayne, FL | 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 Key Biscayne
Who supplies Key Biscayne’s drinking water, and has it had violations?
The Miami-Dade Water and Sewer Department (EPA ID FL4130871). It reported no health-based violations to EPA in the five years to October 2026; 82% of systems its size had none. Its latest lead 90th percentile was 3.1 ppb (Jan–Dec 2023), against a 15 ppb action level.
Who provides electricity in Key Biscayne?
FPL (Florida Power & Light Co.), an investor-owned utility. Its homes paid about 14.6¢ per kWh in 2025 (EIA).
What internet providers serve Key Biscayne?
Xfinity, AT&T, T-Mobile, Verizon (FCC, as of December 2025).
What ZIP codes are in Key Biscayne?
33149. Census 2020 ZIP Code Tabulation Areas.
What school district is Key Biscayne in?
Dade County School District.
How do I register to vote in Key Biscayne?
In Florida 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 Miami-Dade Supervisor of Elections. Check your registration at registration.elections.myflorida.com.
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: Key Biscayne’s own website (keybiscayne.fl.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 17, 2025 (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.