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US ZIP Code Profile

ZIP Code 33931
Fort Myers Beach, Florida

ZIP code 33931 is in Fort Myers Beach, located in Lee County, Florida, within the Cape Coral-Fort Myers metro area. Its 2020 Census population was 9,389. The estimated median adjusted gross income per tax return is $88,500, and about 23% of filers report $200,000 or more.

2020 Population
9,389
Census ZCTA
County
Lee
FIPS 12071
Median income (est.)
$88,500
IRS SOI 2022
Land Area
10.926 mi²
+ 10.611 mi² water

01Location & Geography

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

Primary CityFort Myers Beach, FL
CountyLee County (FIPS 12071)
StateFlorida (FIPS 12)
Metro Area (MSA)Cape Coral-Fort Myers, FL Metro Area (15980)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates26.431625, -81.90677
Land / Water Area10.926 mi² land · 10.611 mi² water

02Income & Economics

Distribution of the 2,690 individual tax returns filed in 33931 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.6%
$25K–$50K
16.4%
$50K–$75K
10.0%
$75K–$100K
9.3%
$100K–$200K
23.1%
$200K+
22.7%
The $200,000+ bracket accounts for 75% of 33931's total adjusted gross income, from 23% of returns — a concentration that drives the gap between the median ($88,500) 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 33931's IRS income metrics, 2020–2022.

Median income (2021→2022)
$88,500
▲ 16.7%
Filers earning $200K+
22.7%
▲ 2.4 pt
Total filers
2,690
▼ 15.9%
GET /zipc/v2/zipcodes/33931/soi?year=… $58K 2020 $76K 2021 $88K 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 33931 ZCTA.

2000
10,461
 
2010
10,005
▼ -4.4%
2020
9,389
▼ -6.2%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number113080
City AliasesBonita Spgs, Bonita Springs, Fort Myers Beach, Ft Myers Bch, Ft Myers Beach

06Frequently Asked Questions

What county is ZIP code 33931 in?

ZIP code 33931 is in Lee County, Florida (county FIPS code 12071).

What city is ZIP code 33931?

The primary USPS city for 33931 is Fort Myers Beach, FL.

What metro area (MSA) is 33931 in?

33931 is part of the Cape Coral-Fort Myers, FL Metro Area (MSA code 15980).

What is the population of ZIP code 33931?

The 2020 Census population of 33931 was 9,389 residents.

What is the median income in ZIP code 33931?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33931 is about $88,500, with around 23% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.