ZIP Code 33043

33043 is one of Florida's ZIP codes, delivering to addresses in Big Pine Key, Monroe County.

City: Big Pine Key
County: Monroe County
State: Florida
Prefix: 330xx

Where this code sits

33043 is part of the 330xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Big Pine Key.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 33043 delivers to without sharing its boundary.

ZIP codes nearest 33043

The ZIP codes whose reference points sit closest to 33043.
ZIP code	Distance	Delivers to
ZIP code 33042	9.3 mi	Summerland Key, FL
ZIP code 33052	19 mi	Marathon Shores, FL
ZIP code 33050	21 mi	Marathon, FL
ZIP code 33051	22 mi	Key Colony Beach, FL
ZIP code 33040	28 mi	Key West, FL
ZIP code 33041	28 mi	Key West, FL
ZIP code 33045	28 mi	Key West, FL
ZIP code 33001	37 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 33043, plotted from its record coordinates.

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

Scope ZIP code 33043. 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.