Get API Key →
US ZIP Code Profile

ZIP Code 33777
Seminole, Florida

ZIP code 33777 is in Seminole, located in Pinellas County, Florida, within the Tampa-St. Petersburg-Clearwater metro area. Its 2020 Census population was 17,793. The estimated median adjusted gross income per tax return is $49,883, and about 8% of filers report $200,000 or more.

2020 Population
17,793
Census ZCTA
County
Pinellas
FIPS 12103
Median income (est.)
$49,883
IRS SOI 2022
Land Area
5.717 mi²
+ 0.934 mi² water

01Location & Geography

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

Primary CitySeminole, FL
CountyPinellas County (FIPS 12103)
StateFlorida (FIPS 12)
Metro Area (MSA)Tampa-St. Petersburg-Clearwater, FL Metro Area (45300)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates27.853533, -82.759346
Land / Water Area5.717 mi² land · 0.934 mi² water

02Income & Economics

Distribution of the 8,860 individual tax returns filed in 33777 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
26.1%
$25K–$50K
24.0%
$50K–$75K
16.2%
$75K–$100K
9.7%
$100K–$200K
16.1%
$200K+
7.8%
The $200,000+ bracket accounts for 49% of 33777's total adjusted gross income, from 8% of returns — a concentration that drives the gap between the median ($49,883) 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 33777's IRS income metrics, 2020–2022.

Median income (2021→2022)
$49,883
▲ 6.6%
Filers earning $200K+
7.8%
▲ 0.7 pt
Total filers
8,860
▲ 0.2%
GET /zipc/v2/zipcodes/33777/soi?year=… $44K 2020 $47K 2021 $50K 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 33777 ZCTA.

2000
17,328
 
2010
17,140
▼ -1.1%
2020
17,793
▲ +3.8%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 33777. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 33777

Seminole and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 33777 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortD
USPS Finance Number115085
City AliasesLargo, Seminole

07Frequently Asked Questions

What county is ZIP code 33777 in?

ZIP code 33777 is in Pinellas County, Florida (county FIPS code 12103).

What city is ZIP code 33777?

The primary USPS city for 33777 is Seminole, FL.

What metro area (MSA) is 33777 in?

33777 is part of the Tampa-St. Petersburg-Clearwater, FL Metro Area (MSA code 45300).

What is the population of ZIP code 33777?

The 2020 Census population of 33777 was 17,793 residents.

What is the median income in ZIP code 33777?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 33777 is about $49,883, with around 8% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.