United States › Missouri › Knox County COUNTY
Knox County Missouri · 3,728 residents (2025 est.) · 504 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 3,756 people, Knox County is a county in Missouri. Four-year degrees are less common here than nationally, at 16% of adults. 85% of homes are owner-occupied. The typical home is worth $101,400, having more than doubled since 2000. There are 7 people per square mile. The foreign-born share is 0%.
At a glance
Lower income
below the US median
US median: $82,259
Mid-age
median age 40.1
US median: 38.9
Less educated
16% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 4,361 in 2000
3,728 in 2025 (Census Bureau estimate)
from 8 / sq mi in 2009
US average: 281
from 41.6 in 2000
US average: 38.9
Population, 1990 – 2024
4K 4K 4K 4K 5K 1990 2000 2010 2020 2024 Knox County Age distribution, 2024
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $57,788
+17%inflation adjusted, since 2000
from $27,124 in 2000
US average: $82,259
from $13,075 in 2000
US average: $44,673
Households earning $100K+
from 13.4% in 2009
US average: 53.3%
from 18.0% in 2000
US average: 12.5%
from 0.467 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing 16.6%
Public administration 3.6%
Professional, scientific, technical 3.2%
Transportation & warehousing 2.1%
Education & health services 0.6%
Arts, entertainment, food 0.6%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
$101,400
+10%inflation adjusted, since 2000
from $50,400 in 2000
US average: $376,019
$666
+30%inflation adjusted, since 2000
from $282 in 2000
US average: $1,442
from 77.4% in 2000
14.9% rent
from 26.6% in 2009
US average: 10.0%
2.82 people
+28%since 2009
from 2.20 people in 2009
US average: 2.54
from 28.0% in 2009
US average: 22.9%
from 25.6% in 2009
US average: 47.4%
from 1.8 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 98.1%(4,277)
Hispanic / Latino 0.6%(26)
2024
White, non-Hispanic 94.8%(3,561)
Hispanic / Latino 0.3%(11)
from 6 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
from 6 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
+ 7 more ancestry groups with data from 12.8% in 2000
US average: 35.6%
High school or higher
from 80.0% in 2000
US average: 89.6%
from 4.0% in 2000
US average: 14.0%
Section 06
Commute & transportation from 17.0 min in 2000
US average: 26.5
from 70.7% in 2009
US average: 68.9%
from 15.1% in 2009
US average: 8.5%
from 0.2% in 2009
US average: 3.2%
from 7.1% in 2009
US average: 15.0%
from 4.8% in 2009
US average: 2.4%
from 0.2% in 2009
US average: 0.4%
from 2.8% in 2009
US average: 8.3%
Section 07
Work & employment from 7.0% in 2011
US average: 5.2%
from 61.6% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 67.0% in 2020
US average: 74.6%
from 10.8% in 2009
US average: 13.1%
from 27.7% in 2009
US average: 42.5%
Section 08
People & community from 0.2% in 2009
US average: 14.1%
from 12.8% in 2009
US average: 6.2%
from 19.7% in 2012
US average: 13.3%
from 24.9% in 2013
US average: 8.4%
from 59.6% in 2017
US average: 91.0%
Computer in household
from 75.3% in 2020
US average: 95.5%
from 90.3% in 2020
US average: 87.7%
from 94.6% in 2016
US average: 77.7%
from 1.3% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 24.9% in 2013
US average: 8.4%
from 34.0% in 2020
US average: 54.8%
Direct-purchase
from 23.5% in 2020
US average: 13.8%
from 24.0% in 2020
US average: 18.4%
from 12.6% in 2020
US average: 20.9%
VA health care
from 3.9% in 2020
US average: 2.2%
Any private
from 57.9% in 2020
US average: 67.1%
Any public
from 34.7% 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) 27.7%(67)
Share of the 242 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
Drill deeper
Places similar to Knox County Head to head
Compare Knox County to nearby counties KNOX COUNTY VS
Scotland County
Income $68,913 +19%
Home value $158,800 +57%
Population 4,796 +29%
SEE FULL COMPARISON →
KNOX COUNTY VS
Lewis County
Income $59,934 +4%
Home value $130,200 +28%
Population 9,879 +165%
SEE FULL COMPARISON →
KNOX COUNTY VS
Shelby County
Income $51,594 −11%
Home value $99,900 −1%
Population 5,870 +57%
SEE FULL COMPARISON →
KNOX COUNTY VS
Adair County
Income $61,536 +6%
Home value $165,700 +63%
Population 25,684 +589%
SEE FULL COMPARISON →
Frequently asked
How many people live in Knox County, Missouri? Knox County, Missouri has about 3,756 residents according to the 2024 American Community Survey.
What is the median household income in Knox County, Missouri? The typical household in Knox County, Missouri earns about $57,788 a year. Half of households make more than that, and half make less.
Is Knox County, Missouri expensive? In Knox County, Missouri, the median home is worth about $101,400, and the typical rent is about $666 a month.
How educated are people in Knox County, Missouri? About 15.8% of adults age 25 and over in Knox County, Missouri hold a bachelor's degree or higher.
What is the poverty rate in Knox County, Missouri? About 11.9% of people in Knox County, Missouri live below the federal poverty line.
Has Knox County, Missouri grown since 1990? Yes, Knox County, Missouri has shrunk since 1990. The population has lost about 726 residents, a change of about -16 percent over that period.
Keep going
Explore from here 