Mississippi County, Missouri Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 75th-largest in Missouri
The population of Mississippi County, Missouri is 12,079 as of the 2023 American Community Survey, making it the 75th-largest county in Missouri. The median household income is $46,258, the median home value is $100,300, and the median age is 42.2.
The population of Mississippi County has declined 18.0% since 2010 (14,333 → 11,750), a -1.41% annualized rate.
12,079
Population
-1.41%
Annual growth
29
People / sq mi
$46,258
Median Income
$100,300
Median Home Value
Mississippi County covers 412 sq mi of land at 29.3 people per square mile.
About Mississippi County, MO
Homeownership is the standout figure in Mississippi County: 60.9% of homes are owner-occupied, lower than the national rate. With 12,079 residents, Mississippi County is a county in Missouri.
Incomes run on the lower side: a median household income of $46,258, below the US median of $78,538. Hardship is pronounced — at 18.9%, poverty is near the top of the range for US counties, above the national 12.4%. Real estate is inexpensive, with a typical home worth only $100,300, with typical rent around $782.
Degree attainment is on the lower side for US counties: 14.1% of adults hold a bachelor’s degree, below the national 35.0%. Just 4.4% of workers are home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.
Mississippi County Population History (2010-2024)
The county of Mississippi County had a population of 14,333 in 2010 and 11,750 in 2024, a -18.0% growth over 14 years. The peak was 14,333 in 2010. Average annual growth rate: -1.38%.
11,750
Population (2024)
14,333
Population (2010)
14,333
Peak (2010)
-1.38%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 14,333 |
| 2011 | 14,241 |
| 2012 | 14,288 |
| 2013 | 14,189 |
| 2014 | 14,197 |
| 2015 | 13,984 |
| 2016 | 13,755 |
| 2017 | 13,615 |
| 2018 | 13,369 |
| 2019 | 13,208 |
| 2020 | 12,121 |
| 2021 | 12,105 |
| 2022 | 11,683 |
| 2023 | 11,852 |
| 2024 | 11,750 |
Race & Ethnicity
| White | 71.9% |
| Black or African American | 22.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
42.2
Median Age
47.1%
Female
52.9%
Male
18.3%
Age 65+
Age Distribution
Children (under 15): 17.4% · Seniors (65+): 18.3%
Income & Poverty
| Median household income | $46,258$-22,662 vs state |
| Mean household income | $58,113 |
| Per-capita income | $22,547 |
| Poverty rate | 18.9%+10.5% vs state |
| Unemployment rate | 1.8% |
| Employment-to-population | 46.1% |
Top Industries by Employment
The largest employment sector in Mississippi County is professional & business services, accounting for 24.3% of workers.
How residents commute
0.1%
Drive alone
3.4%
Carpool
82.0%
Public transit
4.4%
Work from home
20.6 min
Avg commute
Housing
$100,300$-115,300 vs state
Median home value
$782
Median rent
60.9%
Homeownership rate
5,282
Total housing units
86.3%
Occupied
13.7%
Vacant
39.1%
Renter-occupied
Social & access
88.9%
With health insurance
87.8%
With broadband internet
16.7%
Foreign-born
5.0%
Veterans (18+)
25.0%
With a disability
98.3%
Speak language other than English at home
Education
81.9%
High School+
14.1%
Bachelor's+
Largest cities in Missouri
Other counties in Missouri
Part of Missouri
Metro areas in Missouri
County rankings
Frequently Asked Questions
Mississippi County, Missouri has a population of 12,079 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 75th-largest county in Missouri. Population density is 29 people per square mile.
The population of Mississippi County has declined 18.0% since 2010 (14,333 → 11,750), a -1.41% annualized rate.
The median household income in Mississippi County, Missouri is $46,258, with mean (average) household income of $58,113 and per-capita income of $22,547. 18.9% of residents live below the federal poverty level.
In Mississippi County, the largest racial and ethnic groups are White (71.9%), Black or African American (22.7%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Mississippi County, Missouri is 42.2 years. Residents are 47.1% female and 52.9% male.
The median home value in Mississippi County is $100,300 and median monthly rent is $782. 60.9% of occupied housing units are owner-occupied. The county has 5,282 total housing units, 13.7% of which are vacant.
The largest employment sector in Mississippi County, Missouri is professional, scientific, and management services, employing 24.3% of workers. The unemployment rate is 1.8%.
Kansas City is among the largest cities associated with Mississippi County, Missouri, with a population of 508,233.
Mississippi County, MO Climate
Mississippi County, MO has an average annual temperature of 14.4°C (58°F) and receives about 1243 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
14.4°C
Avg Temp
1243
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 1° / 33° | 81 mm |
| February | 3° / 38° | 94 mm |
| March | 9° / 48° | 126 mm |
| April | 14° / 58° | 121 mm |
| May | 20° / 67° | 131 mm |
| June | 25° / 76° | 100 mm |
| July | 27° / 80° | 99 mm |
| August | 25° / 77° | 89 mm |
| September | 22° / 71° | 94 mm |
| October | 16° / 60° | 81 mm |
| November | 9° / 48° | 111 mm |
| December | 4° / 39° | 116 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Mississippi County, MO
The most comfortable months to visit Mississippi County, MO are typically September, May and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 33°C high). The coldest is January (near -4°C low). May is usually the wettest month.
Where to stay near Mississippi County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.