Residential delivery area · Mississippi
ZIP Code 39531: Biloxi, MS
ZIP code 39531 is in Biloxi, Mississippi, entirely in Harrison County (Census 2020 ZIP-county file). About 19,000 people live there (Census Bureau, ACS 2020-2024), the 2nd most populous of Biloxi's 4 residential ZIP codes. Median household income is $54,218 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Biloxi · 4 residential ZIPs
- County
- Harrison County
- Census places
- Biloxi
- Metro area
- Gulfport-Biloxi, MS
- House district
- MS-4 119th Congress
- State
- Mississippi
- Time zone
- Central
- Land area
- 6.6 sq mi · 2,849 people per sq mi
Where is ZIP code 39531?
39531 centers on 30.404°, -88.966° and covers 6.6 square miles of land plus 1.1 of water. It borders 5 ZIP codes: 39534, 39507, 39530, 39532, 39503.
The map draws ZIP code areas only. For the streets inside 39531, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 39531 compare with the rest of Biloxi?
| Measure | 39531 | In Biloxi | In Harrison County | In MS |
|---|---|---|---|---|
| People (ACS 2020-2024) | 18,918 | 2nd of 4 | 5th of 13 | 44th of 427 |
| Median household income | $54k | 2nd of 2 | 10th of 11 | 109th of 205 |
| Median home value | $212k | 2nd of 3 | 8th of 12 | 40th of 203 |
Its median household income is higher than in 20% of U.S. residential ZIP codes, and it is denser than 88% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 39531?
The 2020 Census counted 19,965 people in 39531; the ACS, which samples households over 2020-2024, estimates 18,918. Between the 2010 and 2020 censuses its population grew 12.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 18,918
- 2020 Census count
- 19,965+12.6% since 2010 (17,736)
- Households
- 7,940
- Median age
- 35.5
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 39531?
Of the 18,918 people the ACS estimates in 39531, 24.6% are under 18 and 16.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (60.2%), then Black (not Hispanic) (16.9%).
- Under 1824.6%
- 18 to 6458.8%
- 65 and older16.6%
- White, not Hispanic60.2%
- Black, not Hispanic16.9%
- Hispanic or Latino10.7%
- Other or two or more9.4%
- Asian, not Hispanic2.8%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 39531 earn?
Median household income is $54,218 (ACS 2020-2024), the 10th highest of the 11 ranked ZIP codes in Harrison County. It is not measurably different from 2015-2019 ($56,839 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $54,218
- Income per person
- $32,358
- Below the poverty line
- 16.2%
- Unemployed (of the labor force)
- 9.0%
- Adults 25+ with a bachelor's degree
- 33.0%
- Adjusted gross income per tax return, 2022
- $66,0337,380 returns; wages 58% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 39531?
FHFA's house price index for 39531, built from repeat sales and appraisals of the same homes, rose 54% from 2015 to 2025 and rose 34% from 2020 to 2025, and moved +0.6% in 2025.
- Median home value (owners' estimate)
- $211,500
- Median gross rent
- $1,097
- Homes owned by their occupants
- 38.6%
- Housing units
- 9,648
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 39531?
445 business establishments had a location in this ZIP code in 2023, 24 fewer than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade110
- Accommodation and food services92
- Health care and social assistance65
- Finance and insurance36
- Professional, scientific, and technical services36
- Other services (except public administration)33
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 39531?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 39534 | Biloxi | 1,857 | – | 2.7 mi |
| 39507 | Gulfport | 18,564 | $55k | 4.1 mi |
| 39530 | Biloxi | 7,701 | $41k | 4.4 mi |
| 39532 | Biloxi | 36,662 | $69k | 6.7 mi |
| 39503 | Gulfport | 55,059 | $63k | 11.6 mi |
| 39540 | Diberville | 13,203 | $66k | 4.9 mi (near) |
| 39501 | Gulfport | 22,565 | $35k | 8.0 mi (near) |
| 39564 | Ocean Springs | 43,240 | $79k | 11.6 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.