How a check works

Your address is parsed into the fields the County indexes (numbered streets become ordinals — "94" is stored as "94TH"), matched against County address points, and the resulting coordinate is tested against the County’s own tier polygons with a live spatial query. The answer you see is the County service’s answer, not our approximation of it.

If more than one County record matches, the checker asks you to choose rather than guessing. If the County service cannot be reached, the checker says so — an outage is never shown as "outside the mapped tiers."

Tier placement comes from Miami-Dade County’s mapped polygons. ProtectDade associates each mapped area with the nearest County corridor centerline.

A mapped area roughly midway between two centerlines could reasonably be attributed to either; the attribution is ProtectDade’s, not the County’s.

The 32,839 figure

From live County services on 2026-08-17: 48,223 unique parcels intersect the three distance tiers (all tier polygons posted as one multi-ring geometry, so each parcel counts once no matter how many tiers it touches). Of those, 47,999 — 99.5% — are in unincorporated Miami-Dade. Filtering to single-family use codes (DOR prefix 01) gives 32,886 parcels, of which 32,839 are unincorporated. That last figure is the one this site quotes.

This is a geographic parcel count. It does not mean every property has an active application, is automatically rezoned, or will be redeveloped.

"Intersects" includes edge contact, condominiums carry one folio per unit, and every count is a snapshot — parcel records and geometry change. Per-alignment parcel counts are not published here: alignments converge, parcels near two alignments would double-count, and the attribution is ours rather than the County’s.