ZIP Codes of Mississippi County, MO

Population & People
Population & People
Total Population
12,435
Household Income
Household Income
Median Income
$46,360
Housing
Housing
Total Housing Units
5,404
Business & Economy
Business & Economy
Total Businesses
216
Employment
Employment
Employment Rate
47.88%
Education
Education
Bachelor's Degree+
14.43%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:6 ZIP Codes (3 Standard, 3 PO Box, 0 Unique) [See All]
Area Codes:235 / 573
Timezone:Central (GMT -06:00)
Local Time:11:54:02 PM
Population:12,435 [See All]
FIPS:29133
CBSA:Sikeston, MO
Land Area:515 sq mi
Water Area:18 sq mi
Coordinates:36.8365, -89.3008
Quick Link:
https://www.zip-codes.com/county/mo-mississippi.asp
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Notable population decline
Lost 15.5% of residents since 2014.

Standout ZIPs in this County


Most Populous
East Prairie · 5,261 people
42.3% of county total
Highest Income
Bertrand · $62,656 median
1.4× county average
Largest Land Area
Charleston · 271.5 sq mi
Spans the most ground
Fastest Growth
Bertrand · 10.5% (10-yr)
1,298 → 1,434 residents
Most Educated
Bertrand · 18.3% bachelor's+
184 of 1,008 adults 25+

Things worth knowing about Mississippi County


12,435 residents live across 6 ZIPs covering 515 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 14,711 to 12,435 from 2014 to 2024 — a -15.5% change. 1 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 63823 (Bertrand, $62,656 median) and poorest ZIP 63882 (Wyatt, $30,227) are 13.1 miles apart — a 2.1× income gap across local geography.

Median home values vary 2.0× across this county — from $57,100 in 63882 (Wyatt) to $114,000 in 63834 (Charleston).

Density varies 55× across the county — from 19 people/sq mi in 63834 (Charleston) to 1,046 in 63882 (Wyatt).

Educational attainment ranges from 2.3% bachelor's+ in 63820 (Anniston) to 18.3% in 63823 (Bertrand) — the breadth of educational profiles across the area.

Within Missouri, this is the #76 most populous of 116 counties and ranks #106 for median household income .

Weighted by population, the typical household earns about $47,818 across the county — reflecting what a typical resident sees, not a simple ZIP average.

14.4% of adults age 25+ hold a bachelor's degree or higher (1,227 of 8,502 reporting).

3 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Mississippi County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
515
square miles
Avg density
24.1
people per sq mi
Population
12,435
across 6 ZIPs
Charleston
271.5 sq mi
5,169 residents
East Prairie
202.5 sq mi
5,261 residents
Bertrand
37.8 sq mi
1,434 residents

Population decline

Mississippi County lost 15.5% of residents between 2014 and 2024. ZIPs that shed the largest share:

Wyatt
-39.1%
529 → 322 residents
Charleston
-25.8%
6,962 → 5,169 residents

All ZIP Codes in Mississippi County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
63845East PrairieStandard5,261$51,207202.5-6.7%
63834CharlestonStandard5,169$41,348271.5-25.8%
63823BertrandStandard1,434$62,65637.810.5%
63882WyattPO Box322$30,2270.3-39.1%
63820AnnistonPO Box2491.2-11.7%
63881Wolf IslandPO Box1.8

Adjacent & Nearby Counties