KEY WEST, FL ZIP Code
| City | KEY WEST | 
| State | Florida | 
| ZIP Codes count | 3 (see all) | 
| Post offices count | 3 (see all) | 
| Total population | 25,085 (see all) | 
ZIP Codes in KEY WEST, Florida
33040, 33041, 33045
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of KEY WEST, FL ZIP Codes
| ZIP | TYPE | POPU | 
|---|---|---|
| 33040 | STANDARD | 37,404 | 
| 33041 | PO BOX | – | 
| 33045 | PO BOX | – | 
Post offices
| FLAGLER KEY WEST — Post Office™ 2764 N ROOSEVELT BLVD KEY WEST, FL 33040-3931 | 
| KEY WEST — Post Office™ 400 WHITEHEAD ST KEY WEST, FL 33040-9998 | 
| NAVAL AIR STATION UNIT 2 — Post Office™ 4069 LANGLEY AVE BLDG A KEY WEST, FL 33040-6324 | 
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.
Address example
517 AVENUE C
KEY WEST FL 33040-5529
KEY WEST FL 33040-5529
636 DEY ST
KEY WEST FL 33040-6609
KEY WEST FL 33040-6609
486 DUVAL ST
KEY WEST FL 33040-6551
KEY WEST FL 33040-6551
22 EGRET LN
KEY WEST FL 33040-6305
KEY WEST FL 33040-6305
3903 PRYOR CIR
KEY WEST FL 33040-4595
KEY WEST FL 33040-4595
1669 SUNSHINE DR
KEY WEST FL 33040-5044
KEY WEST FL 33040-5044
Map
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Census data for KEY WEST, FL
Demographic and housing estimates in KEY WEST, FL
| Total population | 25,085 | 
| Male | 13,022 | 
| Female | 12,063 | 
| Total population | 25,085 | 
| Under 5 years | 1,332 | 
| 5 to 9 years | 1,200 | 
| 10 to 14 years | 917 | 
| 15 to 19 years | 1,043 | 
| 20 to 24 years | 1,498 | 
| 25 to 34 years | 3,911 | 
| 35 to 44 years | 4,361 | 
| 45 to 54 years | 3,489 | 
| 55 to 59 years | 1,955 | 
| 60 to 64 years | 1,505 | 
| 65 to 74 years | 2,551 | 
| 75 to 84 years | 996 | 
| 85 years and over | 327 | 
| Median age (years) | 40.6 | 
| Under 18 years | 3,988 | 
| 16 years and over | 21,462 | 
| 18 years and over | 21,097 | 
| 21 years and over | 20,362 | 
| 62 years and over | 4,684 | 
| 65 years and over | 3,874 | 
| Total population | 25,085 | 
| One race | 24,735 | 
| White | 20,326 | 
| Black or African American | 3,354 | 
| American Indian and Alaska Native | 27 | 
| Asian | 490 | 
| Native Hawaiian and Other Pacific Islander | 0 | 
| Some other race | 538 | 
| Two or more races | 350 | 
| Citizen, VOTING AGE 18 and over population | 18,715 | 
| Male Citizen, VOTING AGE 18 and over population | 9,856 | 
| Female Citizen, VOTING AGE 18 and over population | 8,859 | 
Social characteristics in KEY WEST, FL
| Total households | 10,021 | 
| Family households (families) | 5,409 | 
| Married-couple family | 4,370 | 
| Male householder, no wife present, family | 323 | 
| Female householder, no husband present, family | 716 | 
| Nonfamily households | 4,612 | 
| Average household size | 2.37 | 
| Average family size | 2.96 | 
Economic characteristics in KEY WEST, FL
| Total households | 10,021 | 
| Less than $10,000 | 435 | 
| $10,000 to $14,999 | 335 | 
| $15,000 to $24,999 | 657 | 
| $25,000 to $34,999 | 899 | 
| $35,000 to $49,999 | 1,269 | 
| $50,000 to $74,999 | 1,908 | 
| $75,000 to $99,999 | 1,577 | 
| $100,000 to $149,999 | 1,333 | 
| $150,000 to $199,999 | 663 | 
| $200,000 or more | 945 | 
| Median household income (dollars) | 67,712 | 
Housing characteristics in KEY WEST, FL
| Total housing units | 13,631 | 
| Occupied housing units | 10,021 | 
| Vacant housing units | 3,610 | 
| Total housing units | 13,631 | 
| 1-unit, detached | 5,206 | 
| 1-unit, attached | 1,312 | 
| 2 units | 1,084 | 
| 3 or 4 units | 1,746 | 
| 5 to 9 units | 1,260 | 
| 10 to 19 units | 673 | 
| 20 or more units | 1,838 | 
| Mobile home | 493 | 
| Boat, RV, van, etc. | 19 | 
| Total housing units | 13,631 | 
| Built 2014 or later | 41 | 
| Built 2010 to 2013 | 131 | 
| Built 2000 to 2009 | 1,153 | 
| Built 1990 to 1999 | 1,306 | 
| Built 1980 to 1989 | 1,927 | 
| Built 1970 to 1979 | 1,654 | 
| Built 1960 to 1969 | 1,784 | 
| Built 1950 to 1959 | 1,438 | 
| Built 1940 to 1949 | 933 | 
| Built 1939 or earlier | 3,264 | 
| Total housing units | 13,631 | 
| 1 room | 696 | 
| 2 rooms | 937 | 
| 3 rooms | 3,264 | 
| 4 rooms | 4,182 | 
| 5 rooms | 1,886 | 
| 6 rooms | 1,127 | 
| 7 rooms | 665 | 
| 8 rooms | 368 | 
| 9 rooms or more | 506 | 
| Median rooms | 4.0 | 
| Total housing units | 13,631 | 
| No bedroom | 754 | 
| 1 bedroom | 2,314 | 
| 2 bedrooms | 5,810 | 
| 3 bedrooms | 3,773 | 
| 4 bedrooms | 779 | 
| 5 or more bedrooms | 201 | 
| Occupied housing units | 10,021 | 
| Owner-occupied | 4,063 | 
| Renter-occupied | 5,958 | 
| Average household size of owner-occupied unit | 2.31 | 
| Average household size of renter-occupied unit | 2.42 | 
| Occupied housing units | 10,021 | 
| Moved in 2017 or later | 845 | 
| Moved in 2015 to 2016 | 1,800 | 
| Moved in 2010 to 2014 | 3,919 | 
| Moved in 2000 to 2009 | 1,891 | 
| Moved in 1990 to 1999 | 709 | 
| Moved in 1989 and earlier | 857 | 
| Owner-occupied units | 4,063 | 
| Less than $50,000 | 81 | 
| $50,000 to $99,999 | 48 | 
| $100,000 to $149,999 | 41 | 
| $150,000 to $199,999 | 62 | 
| $200,000 to $299,999 | 365 | 
| $300,000 to $499,999 | 1,102 | 
| $500,000 to $999,999 | 1,666 | 
| $1,000,000 or more | 698 | 
| Median (dollars) | 578,100 | 
| Owner-occupied units | 4,063 | 
| Housing units with a mortgage | 2,273 | 
| Housing units without a mortgage | 1,790 | 
| Occupied units paying rent | 5,753 | 
| Less than $500 | 225 | 
| $500 to $999 | 410 | 
| $1,000 to $1,499 | 1,227 | 
| $1,500 to $1,999 | 1,733 | 
| $2,000 to $2,499 | 1,400 | 
| $2,500 to $2,999 | 439 | 
| $3,000 or more | 319 | 
| Median (dollars) | 1,793 | 
| No rent paid | 205 | 
Data is based on 2018 Census
ZIP Codes for other locations
State for KEY WEST
Florida ZIP CodesOther cities in Florida