ZIP Code 33045

33045 is one of Florida's ZIP codes, delivering to addresses in Key West, Monroe County.

City: Key West
County: Monroe County
State: Florida
Prefix: 330xx

Where this code sits

33045 is part of the 330xx range, the group of codes handled by one mail processing centre. Key West is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Key West page.

Key West Florida ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 33045 delivers to without sharing its boundary.

ZIP codes nearest 33045

The ZIP codes whose reference points sit closest to 33045.
ZIP code	Distance	Delivers to
ZIP code 33040	0.0 mi	Key West, FL
ZIP code 33041	0.0 mi	Key West, FL
ZIP code 33042	19 mi	Summerland Key, FL
ZIP code 33043	28 mi	Big Pine Key, FL
ZIP code 33052	47 mi	Marathon Shores, FL
ZIP code 33050	48 mi	Marathon, FL
ZIP code 33051	49 mi	Key Colony Beach, FL
ZIP code 33001	64 mi	Long Key, FL

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 33045, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 33045. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.