Mississippi County is home to 11,902 people in Missouri. 15% of adults hold a bachelor's degree, below the 36% national rate. Home values have more than doubled since 2000, reaching $109,000. 0% of residents were born outside the United States. That trails the Missouri median by roughly 32%. Density works out to 29 people per square mile.
At a glance
Lower income
median household income $48,160, below the US median
US median: $82,259
Older
median age 41.1
US median: 38.9
Less educated
15% hold a bachelor's degree
US average: 36%
Less affordable
home values up 32%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Mississippi County
What changed most since 1990
Population14,442 → 11,902(−18%)US over the same years: +35%
Poverty rate29.7% → 19.0%(−10.7 pts)US over the same years: −0.8 pts
White share80.2% → 70.7%(−9.5 pts)US over the same years: −17.8 pts
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)10.6%(60)
US avg: 26.4%
Gulf War (1990s)15.2%(86)
US avg: 24.3%
Vietnam era36.7%(207)
US avg: 33.1%
Korean War1.1%(6)
US avg: 4.5%
World War II2.3%(13)
US avg: 1%
Share of the 564 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Mississippi County, decade by decade
Mississippi County population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
14,442
$38,783
$75,602
7.2%
40.1
2000
13,427
$41,920
$82,339
9.6%
44.6
2010
14,358
$42,562
$96,960
10.5%
50.7
2020
12,577
$41,638
$100,478
12.5%
56.1
2024
11,902
$48,160
$109,000
14.7%
57.1
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
How many people live in Mississippi County, Missouri?
Mississippi County, Missouri has about 11,902 residents according to the 2024 American Community Survey.
What is the median household income in Mississippi County, Missouri?
The typical household in Mississippi County, Missouri earns about $48,160 a year. Half of households make more than that, and half make less.
Is Mississippi County, Missouri expensive?
In Mississippi County, Missouri, the median home is worth about $109,000, and the typical rent is about $762 a month.
How educated are people in Mississippi County, Missouri?
About 14.7% of adults age 25 and over in Mississippi County, Missouri hold a bachelor's degree or higher.
What is the poverty rate in Mississippi County, Missouri?
About 19.0% of people in Mississippi County, Missouri live below the federal poverty line.
Has Mississippi County, Missouri grown since 1990?
Yes, Mississippi County, Missouri has shrunk since 1990. The population has lost about 2,540 residents, a change of about -18 percent over that period.
