Key West, FL ZIP Codes
One ZIP code serves Key West, Florida: 33040. Together they are home to 35,429 residents in 14,574 households. That is more than the 25,720 people counted inside Key West city limits, because these ZIP codes reach past its boundary.
Key West city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 25,720 |
| Households | 10,775 |
| Median household income | $87,037 |
| Median home value | $852,400 |
| Median age | 46.1 |
| Median rent | $2,220 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 35,429 |
| Households (sum of ZIP codes) | 14,574 |
| Median household income, range across ZIP codes | $86,586 (33040) to $86,586 (33040) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $86,586 |
| Homeowners | 50.2% |
| Households with kids under 18 | 23.0% |
| Moved in the past year | 17.5% |
| Carrier routes in EDDM2GO's route library | 38 routes, 16,187 homes (1 of 1 ZIP codes) |
Every ZIP code in Key West
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 33040 | Key West | 35,429 | 14,574 | $86,586 | $819,400 | 50.2% | 23.0% | 17.5% | 38 | 17,933 | 29% of its land; mailing city |
A ZIP code is listed for Key West when at least 10% of its land lies inside Key West city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Key West. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Key West.
Counties
- Monroe County — 11 ZIP codes
Price a mailing to Key West ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Key West, FL?
- 33040. A ZIP code is listed for Key West when at least 10% of its land lies inside Key West city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Key West.
- What is the population of Key West, FL?
- The Census Bureau counts 25,720 residents inside Key West city limits (ACS 2020–2024). The 1 ZIP code that serve Key West hold 35,429 residents in all.
- What is the median household income in Key West, FL?
- $87,037 inside Key West city limits, per the Census Bureau. Across its ZIP codes the medians run from $86,586 to $86,586.
- How many carrier routes and mailboxes are in Key West, FL?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 38 carrier routes reaching 16,187 residential and 1,756 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.