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US ZIP Code Profile

ZIP Code 39531
Biloxi, Mississippi

ZIP code 39531 is in Biloxi, located in Harrison County, Mississippi, within the Gulfport-Biloxi-Pascagoula metro area. Its 2020 Census population was 19,965. The estimated median adjusted gross income per tax return is $36,406, and about 4% of filers report $200,000 or more.

2020 Population
19,965
Census ZCTA
County
Harrison
FIPS 28047
Median income (est.)
$36,406
IRS SOI 2022
Land Area
6.761 mi²
+ 0.995 mi² water

01Location & Geography

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

Primary CityBiloxi, MS
CountyHarrison County (FIPS 28047)
StateMississippi (FIPS 28)
Metro Area (MSA)Gulfport-Biloxi-Pascagoula, MS Metro Area (25060)
Census Region / DivisionSouth Region · East South Central Division
Coordinates30.403994, -88.96613
Land / Water Area6.761 mi² land · 0.995 mi² water

02Income & Economics

Distribution of the 7,380 individual tax returns filed in 39531 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
36.6%
$25K–$50K
29.4%
$50K–$75K
13.3%
$75K–$100K
6.8%
$100K–$200K
9.9%
$200K+
4.1%
The $200,000+ bracket accounts for 35% of 39531's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($36,406) 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 39531's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,406
▲ 10.8%
Filers earning $200K+
4.1%
▲ 0.5 pt
Total filers
7,380
▼ 1.7%
GET /zipc/v2/zipcodes/39531/soi?year=… $31K 2020 $33K 2021 $36K 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 39531 ZCTA.

2000
20,343
 
2010
17,736
▼ -12.8%
2020
19,965
▲ +12.6%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 39531. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 39531

Biloxi and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 39531 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 TypePost Office
Carrier Route SortD
USPS Finance Number270702
City AliasesBiloxi, Boloxi, West Biloxi, Blx

07Frequently Asked Questions

What county is ZIP code 39531 in?

ZIP code 39531 is in Harrison County, Mississippi (county FIPS code 28047).

What city is ZIP code 39531?

The primary USPS city for 39531 is Biloxi, MS.

What metro area (MSA) is 39531 in?

39531 is part of the Gulfport-Biloxi-Pascagoula, MS Metro Area (MSA code 25060).

What is the population of ZIP code 39531?

The 2020 Census population of 39531 was 19,965 residents.

What is the median income in ZIP code 39531?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 39531 is about $36,406, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.