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US ZIP Code Profile

ZIP Code 33036
Islamorada, Florida

ZIP code 33036 is in Islamorada, located in Monroe County, Florida, within the Key West metro area. Its 2020 Census population was 3,541. The estimated median adjusted gross income per tax return is $61,574, and about 19% of filers report $200,000 or more.

2020 Population
3,541
Census ZCTA
County
Monroe
FIPS 12087
Median income (est.)
$61,574
IRS SOI 2022
Land Area
5.876 mi²
+ 48.705 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityIslamorada, FL
CountyMonroe County (FIPS 12087)
StateFlorida (FIPS 12)
Metro Area (MSA)Key West, FL Micro Area (28580)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates24.901896, -80.699
Land / Water Area5.876 mi² land · 48.705 mi² water

02Income & Economics

Distribution of the 2,010 individual tax returns filed in 33036 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
23.9%
$25K–$50K
19.9%
$50K–$75K
13.4%
$75K–$100K
8.0%
$100K–$200K
15.4%
$200K+
19.4%
The $200,000+ bracket accounts for 84% of 33036's total adjusted gross income, from 19% of returns — a concentration that drives the gap between the median ($61,574) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 33036's IRS income metrics, 2020–2022.

Median income (2021→2022)
$61,574
▲ 5.6%
Filers earning $200K+
19.4%
▼ 0.1 pt
Total filers
2,010
▲ 5.8%
GET /zipc/v2/zipcodes/33036/soi?year=… $46K 2020 $58K 2021 $62K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 33036 ZCTA.

2000
3,485
 
2010
3,035
▼ -12.9%
2020
3,541
▲ +16.7%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number114335
City AliasesIslamorada, Lower Matecumbe Key, Matecumbe Key, Plantation Key, Upper Matecumbe Key, Venetian Shores, Windley Key

06Frequently Asked Questions

What county is ZIP code 33036 in?

ZIP code 33036 is in Monroe County, Florida (county FIPS code 12087).

What city is ZIP code 33036?

The primary USPS city for 33036 is Islamorada, FL.

What metro area (MSA) is 33036 in?

33036 is part of the Key West, FL Micro Area (MSA code 28580).

What is the population of ZIP code 33036?

The 2020 Census population of 33036 was 3,541 residents.

What is the median income in ZIP code 33036?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33036 is about $61,574, with around 19% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.