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ZIP codes in Miami-Dade County

128 ZIPs touch Miami-Dade County, Florida. The blue dashed line is the county border; orange ZIPs reach into it.

128

ZIP codes

2

cross the county line

2,738,529

people in these ZIPs

67

counties in FL

Most people

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Miami-Dade County ZIP list

More counties in Florida

All 67 counties in Florida

Questions people actually ask

How many ZIP codes are in Miami-Dade County, Florida?

128 ZIP codes reach into Miami-Dade County, including 47 PO Box or single-address ZIPs placed by the town they serve. 2 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Miami-Dade County has the most people?

33033 (Homestead) has about 71,458 residents, the most of any ZIP touching Miami-Dade County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Miami-Dade County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Miami-Dade County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

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Updated 2026-11-10 · Where the data comes from