United States › Missouri › Marion County COUNTY
Marion County Missouri · 28,525 residents (2025 est.) · 437 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
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
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
Section 01
Population & growth from 28,289 in 2000
28,525 in 2025 (Census Bureau estimate)
from 65 / sq mi in 2009
US average: 281
from 37.1 in 2000
US average: 38.9
Population, 1990 – 2024
28K 28K 28K 29K 29K 1990 2000 2010 2020 2024 Marion County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $62,903
+9%inflation adjusted, since 2000
from $31,774 in 2000
US average: $82,259
from $16,964 in 2000
US average: $44,673
Households earning $100K+
from 17.3% in 2009
US average: 53.3%
from 12.1% in 2000
US average: 12.5%
from 0.435 in 2010
US average: 0.476
Workforce by industry, 2024
Professional, scientific, technical 4.8%
Public administration 3.9%
Transportation & warehousing 3.1%
Agriculture, forestry, fishing 2.2%
Arts, entertainment, food 1%
Education & health services 0.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$162,000
+32%inflation adjusted, since 2000
from $67,400 in 2000
US average: $376,019
$808
+24%inflation adjusted, since 2000
from $358 in 2000
US average: $1,442
from 70.3% in 2000
30.7% rent
from 10.5% in 2009
US average: 10.0%
from 2.36 people in 2009
US average: 2.54
from 18.4% in 2009
US average: 22.9%
from 36.6% in 2009
US average: 47.4%
from 2.3 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 92.7%(26,236)
Hispanic / Latino 0.9%(252)
2024
White, non-Hispanic 89%(25,330)
from 20 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 24 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 24 more ancestry groups with data from 15.6% in 2000
US average: 35.6%
High school or higher
from 79.4% in 2000
US average: 89.6%
from 4.2% in 2000
US average: 14.0%
Section 06
Commute & transportation from 11.7 min in 2000
US average: 26.5
from 78.4% in 2009
US average: 68.9%
from 12.7% in 2009
US average: 8.5%
from 0.6% in 2009
US average: 3.2%
from 3.7% in 2009
US average: 15.0%
from 2.9% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 9.0% in 2009
US average: 8.3%
Section 07
Work & employment from 7.1% in 2011
US average: 5.2%
from 62.5% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 76.6% in 2020
US average: 74.6%
from 11.4% in 2009
US average: 13.1%
from 27.6% in 2009
US average: 42.5%
Section 08
People & community from 0.6% in 2009
US average: 14.1%
from 12.2% in 2009
US average: 6.2%
from 14.0% in 2012
US average: 13.3%
from 12.8% in 2013
US average: 8.4%
from 72.6% in 2017
US average: 91.0%
Computer in household
from 88.9% in 2020
US average: 95.5%
from 85.7% in 2020
US average: 87.7%
from 97.8% in 2016
US average: 77.7%
from 0.6% in 2016
US average: 13.6%
Marital status
Men 15+
Never married 32.1%(3,532)
Women 15+
Never married 29.7%(3,517)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 12.8% in 2013
US average: 8.4%
from 56.2% in 2020
US average: 54.8%
Direct-purchase
from 13.3% in 2020
US average: 13.8%
from 19.7% in 2020
US average: 18.4%
from 19.6% in 2020
US average: 20.9%
VA health care
from 3.6% in 2020
US average: 2.2%
Any private
from 68.3% in 2020
US average: 67.1%
Any public
from 36.7% in 2020
US average: 36.7%
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)
Gulf War (1990s) 20.2%(342)
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.
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Drill deeper
Places similar to Marion County Head to head
Compare Marion County to nearby counties MARION COUNTY VS
Ralls County
Income $65,388 +4%
Home value $168,200 +4%
Population 10,444 −63%
SEE FULL COMPARISON →
MARION COUNTY VS
Lewis County
Income $59,934 −5%
Home value $130,200 −20%
Population 9,879 −65%
SEE FULL COMPARISON →
MARION COUNTY VS
Shelby County
Income $51,594 −18%
Home value $99,900 −38%
Population 5,870 −79%
SEE FULL COMPARISON →
MARION COUNTY VS
Adams County
Income $66,220 +5%
Home value $162,600 same
Population 64,267 +125%
SEE FULL COMPARISON →
Frequently asked
How many people live in Marion County, Missouri? Marion County, Missouri has about 28,457 residents according to the 2024 American Community Survey.
What is the median household income in Marion County, Missouri? The typical household in Marion County, Missouri earns about $62,903 a year. Half of households make more than that, and half make less.
Is Marion County, Missouri expensive? In Marion County, Missouri, the median home is worth about $162,000, and the typical rent is about $808 a month.
How educated are people in Marion County, Missouri? About 24.6% of adults age 25 and over in Marion County, Missouri hold a bachelor's degree or higher.
What is the poverty rate in Marion County, Missouri? About 14.2% of people in Marion County, Missouri live below the federal poverty line.
Has Marion County, Missouri grown since 1990? Yes, Marion County, Missouri has grown since 1990. The population has added about 775 residents, a change of about 3 percent over that period.
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