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US ZIP Code Profile

ZIP Code 39631
Centreville, Mississippi

ZIP code 39631 is in Centreville, located in Wilkinson County, Mississippi. Its 2020 Census population was 2,982. The estimated median adjusted gross income per tax return is $32,237, and about 2% of filers report $200,000 or more.

2020 Population
2,982
Census ZCTA
County
Wilkinson
FIPS 28157
Median income (est.)
$32,237
IRS SOI 2022
Land Area
151.92 mi²
+ 0.042 mi² water

01Location & Geography

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

Primary CityCentreville, MS
CountyWilkinson County (FIPS 28157)
StateMississippi (FIPS 28)
Census Region / DivisionSouth Region · East South Central Division
Coordinates31.067207, -91.134
Land / Water Area151.92 mi² land · 0.042 mi² water

02Income & Economics

Distribution of the 1,200 individual tax returns filed in 39631 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
40.8%
$25K–$50K
31.7%
$50K–$75K
11.7%
$75K–$100K
5.0%
$100K–$200K
8.3%
$200K+
2.5%
The $200,000+ bracket accounts for 21% of 39631's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($32,237) 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 39631's IRS income metrics, 2020–2022.

Median income (2021→2022)
$32,237
▲ 6.2%
Filers earning $200K+
2.5%
▲ 2.5 pt
Total filers
1,200
▼ 0.8%
GET /zipc/v2/zipcodes/39631/soi?year=… $29K 2020 $30K 2021 $32K 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 39631 ZCTA.

2000
3,731
 
2010
3,732
▲ +0.0%
2020
2,982
▼ -20.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number271365
City AliasesCentreville

06Frequently Asked Questions

What county is ZIP code 39631 in?

ZIP code 39631 is in Wilkinson County, Mississippi (county FIPS code 28157).

What city is ZIP code 39631?

The primary USPS city for 39631 is Centreville, MS.

What is the population of ZIP code 39631?

The 2020 Census population of 39631 was 2,982 residents.

What is the median income in ZIP code 39631?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 39631 is about $32,237, with around 2% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.