With 28,457 people, Marion County is a county in Missouri. 1% of locals were born outside the United States. The typical home is worth $162,000, having more than doubled since 2000. About 25% of adults have finished a four-year degree. Getting to work takes 18 minutes on average. Renters pay $808 a month at the median.
At a glance
Lower income
median household income $62,903, below the US median
US median: $82,259
Mid-age
median age 39.6
US median: 38.9
Less educated
25% 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 Marion County
What changed most since 1990
White share94.2% → 89.0%(−5.1 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)17.9%(304)
US avg: 26.4%
Gulf War (1990s)20.2%(342)
US avg: 24.3%
Vietnam era38.1%(645)
US avg: 33.1%
Korean War5.1%(87)
US avg: 4.5%
World War II0.4%(7)
US avg: 1%
Share of the 1,695 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
Marion County, decade by decade
Marion 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
27,682
$51,409
$84,722
12.9%
13.9
2000
28,289
$57,881
$122,780
15.6%
17.2
2010
28,781
$58,779
$131,198
16.9%
21.0
2020
28,525
$65,786
$156,353
24.8%
29.0
2024
28,457
$62,903
$162,000
24.6%
25.5
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.
