Photo: William “Patrick” Ma… · CC BY-SA 3.0Living in Jupiter Island, FL: what to set up and who to call
Every home in Jupiter Island is in ZIP code 33455. Hobe Sound Public Library (Martin County Library System), 4.2 miles away, is the closest library to Jupiter Island.
I’m new in town
What to set up in Jupiter 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 Jupiter Island.
Power comes from FPL
FPL (Florida Power & Light Co.), an investor-owned utility, serves all of Jupiter Island. 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 South Martin Regional Utilities
South Martin Regional Utilities supplies almost all of Jupiter Island. It draws ground water and serves 27,000 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–Dec 2023, was 1.1 ppb, below the 15 ppb action level that applied. That’s lower than 51% 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. FL4430624.
4 home internet providers serve Jupiter Island
100% of 567 addresses can get 100/20 Mbps; 23% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| AT&T | DSL, Fixed wireless, Fiber | 72% | 5,000/5,000 |
| Verizon | Fixed wireless | 71% | 300/20 |
| T-Mobile | Fixed wireless | 32% | 100/20 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Jupiter Island’s trash rules yet
Pickup rules, the dump and recycling in Jupiter Island.
Where your child goes to school
Public school districts and the school path by grade.
Jupiter Island is in Martin 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 Nov 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 17, 2025.
Jupiter Island is in ZIP code 33455
ZIP codes where Jupiter Island residents live, with the share of the town in each.
| ZIP | Post office name | Share of Jupiter Island | ZIP’s residents in Jupiter Island |
|---|---|---|---|
| 33455 | Hobe Sound, FL | 100% | 4% |
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 Jupiter Island
Who supplies Jupiter Island’s drinking water, and has it had violations?
South Martin Regional Utilities (EPA ID FL4430624). 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 1.1 ppb (Jan–Dec 2023), against a 15 ppb action level.
Who provides electricity in Jupiter Island?
FPL (Florida Power & Light Co.), an investor-owned utility. Its homes paid about 14.6¢ per kWh in 2025 (EIA).
What internet providers serve Jupiter Island?
Xfinity, AT&T, Verizon, T-Mobile (FCC, as of December 2025).
What ZIP codes are in Jupiter Island?
33455. Census 2020 ZIP Code Tabulation Areas.
What school district is Jupiter Island in?
Martin County School District.
How do I register to vote in Jupiter Island?
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 Martin 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: 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 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.