Sanibel Lighthouse and Keeper's Quarters · Photo: Lewis Brian Day · CC BY-SA 4.0Living in Sanibel, FL: what to set up and who to call
All of Sanibel gets its mail under one ZIP code, 33957. The ER is a drive from Sanibel: the closest is Cape Coral Hospital, 16.6 miles away.
I’m new in town
What to set up in Sanibel, 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 Sanibel.
Power comes from FPL
FPL (Florida Power & Light Co.), an investor-owned utility, serves all of Sanibel. 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 Island Water Association
Island Water Association supplies almost all of Sanibel. It draws ground water and serves 14,784 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 2025, was 0.7 ppb, below the 15 ppb action level that applied. The highest in five years was 1.0 ppb. That’s lower than 63% 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. FL5360146.
6 home internet providers serve Sanibel
100% of 4,763 addresses can get 100/20 Mbps; 82% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Xfinity | Cable | 100% | 2,000/250 |
| Quantum Fiber | Fiber | 83% | 3,000/3,000 |
| CenturyLink | DSL, Fiber | 12% | 100/10 |
| Verizon | Fixed wireless | 63% | 300/20 |
| T-Mobile | Fixed wireless | 45% | 100/20 |
| AT&T | Fixed wireless | 37% | 25/3 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
Trash day in Sanibel depends on your street
Pickup days, the drop-off and recycling in Sanibel, from the town’s own site.
Your pickup week
- TrashEvery week, on your street’s dayLook up your day on mysanibel.com
- Bulky itemsCall to book
Single-stream recycling
All your recyclables go in one bin, no sorting.
From mysanibel.com, 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.
Sanibel is in Lee 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 Nov 2023; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 17, 2025.
Sanibel is in ZIP code 33957
ZIP codes where Sanibel residents live, with the share of the town in each.
| ZIP | Post office name | Share of Sanibel | ZIP’s residents in Sanibel |
|---|---|---|---|
| 33957 | Sanibel, 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 Sanibel
Who supplies Sanibel’s drinking water, and has it had violations?
Island Water Association (EPA ID FL5360146). 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 0.7 ppb (Jan–Dec 2025), against a 15 ppb action level.
Who provides electricity in Sanibel?
FPL (Florida Power & Light Co.), an investor-owned utility. Its homes paid about 14.6¢ per kWh in 2025 (EIA).
What internet providers serve Sanibel?
Xfinity, Quantum Fiber, CenturyLink, Verizon, T-Mobile, AT&T (FCC, as of December 2025).
What ZIP codes are in Sanibel?
33957. Census 2020 ZIP Code Tabulation Areas.
What school district is Sanibel in?
Lee County School District.
How do I register to vote in Sanibel?
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 Lee 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: Sanibel’s own website (mysanibel.com), 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.