County · Missouri
Knox County, Missouri
Knox County, Missouri. Knox County had 3,728 residents in 2025 by the Census Bureau's estimate, down 0.3% since 2020, while Missouri grew 1.9%. It holds 7 places (6 cities, villages and boroughs and 1 census-designated) and 2 census tracts. GEOID 29103.
Residents, July 2025 estimate
3,728
Census Bureau estimate (no margin published)
2020 Census count: 3,744 · ACS 2020-2024: 3,756
Median household income
$57,788
±$9,515 (90% margin)
Missouri: $70,702
Median home value
$101,400
±$15,911 (90% margin)
Missouri: $230,300
Median gross rent
$666
±$21 (90% margin)
Missouri: $1,033
How many people live in Knox County, and is it growing?
The 2020 Census counted 3,744 residents in Knox County. The Census Bureau estimates 3,728 for July 1, 2025, down 0.3% since 2020, while Missouri grew 1.9%. The 2020-2024 American Community Survey puts the population at 3,756 over 504 square miles of land.
| Measure | Knox County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Total population | 3,756 | 6,191,814 | −191 |
| Households | 1,288±81 | 2,508,227 | −202 |
| Average household size | 2.82±0.18 | 2.40 | no clear change |
| Housing units | 1,937±18 | 2,825,287 | −349 |
Knox County's population since 2000
From 4,361 in 2000 to 3,728 in 2025: down 14.5%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Knox County?
Knox County holds 7 places: 6 cities, villages and boroughs (incorporated places) and 1 census-designated place. The largest is Edina with 1,014 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Edina | 1,012 | $42,396 |
|---|---|---|
| Knox CityGEOID 2939278 | 191 | $43,750 |
| Hurdland | 155 | $34,125 |
| BaringGEOID 2903322 | 125 | not published |
| NoveltyGEOID 2953516 | 102 | $69,167 |
| NewarkGEOID 2951662 | 54 | $68,000 |
| PlevnaGEOID 2958574 | 7 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Knox County?
The median resident of Knox County is 40.1 years old; 24.8% are under 18 and 21.5% are 65 or older. The largest group is non-Hispanic white residents at 94.8%, then non-Hispanic Native Hawaiian and Pacific Islander residents at 2.0%.
| Measure | Knox County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.1±0.8 | 39.0 | −4.0 |
| Under 18 years | 24.8%±1.1 pts | 22.3% | – |
| 65 years and over | 21.5%±0.4 pts | 17.9% | – |
| Hispanic or Latino (any race) | 0.3%±0.6 pts | 5.2% | – |
| White alone, not Hispanic | 94.8%±0.9 pts | 76.3% | −1.4 pts |
| Black or African American alone, not Hispanic | 0.6%±0.7 pts | 10.9% | – |
| Asian alone, not Hispanic | 0.2%±0.3 pts | 2.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.2 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 2.0%±1.6 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.8%±1.5 pts | 4.8% | – |
| Some other race alone, not Hispanic | 0.2%±0.3 pts | 0.4% | – |
| Born outside the United States | 0.4%±0.4 pts | 4.5% | – |
| Speak a language other than English at home (age 5+) | 5.3%±3.5 pts | 6.7% | – |
| Civilian veterans (age 18+) | 8.6%±2.2 pts | 7.3% | – |
| With a disability | 12.6%±2.6 pts | 14.9% | – |
| No health insurance coverage | 25.5%±6.7 pts | 8.8% | no clear change |
| High school graduate or higher (age 25+) | 81.1%±5.2 pts | 91.9% | – |
| Bachelor's degree or higher (age 25+) | 15.8%±3.8 pts | 32.4% | no clear change |
| Graduate or professional degree (age 25+) | 6.4%±2.2 pts | 12.6% | – |
| Moved from another state in the past year | 2.9%±1.3 pts | 2.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Knox County earn?
Half of Knox County's 1,288 households earn less than $57,788 a year (±$9,515), against $70,702 in Missouri. In 2015-2019 it was $49,228 in 2024 dollars; the margins of error cannot tell the two periods apart. 11.9% of residents live below the poverty line.
| Measure | Knox County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $57,788±$9,515 | $70,702 | no clear change |
| Mean household income | $76,853±$9,203 | $96,247 | – |
| Per capita income | $28,995±$2,707 | $39,695 | no clear change |
| People below the poverty line | 11.9%±3.6 pts | 12.6% | −6.9 pts |
| Children under 18 below the poverty line | 12.7%±7.5 pts | 15.8% | no clear change |
| Households receiving SNAP | 8.2%±3.0 pts | 9.8% | – |
| Households with a broadband subscription | 70.5%±5.3 pts | 89.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Knox County?
Owners occupy 85.1% of Knox County's occupied homes and renters 14.9%. The median owner-occupied home is valued at $101,400 by its owner (±$15,911). The median renter pays $666 a month including utilities, and 19.6% of renters pay 35% or more of their income on rent.
| Measure | Knox County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $101,400±$15,911 | $230,300 | no clear change |
| Median gross rent | $666±$21 | $1,033 | no clear change |
| Renters paying 35% or more of income on rent | 19.6%±9.2 pts | 36.6% | no clear change |
| Median monthly owner costs, with a mortgage | $1,103±$64 | $1,524 | – |
| Owner-occupied homes | 85.1%±3.6 pts | 68.1% | no clear change |
| Housing units | 1,937±18 | 2,825,287 | −349 |
| Homeowner vacancy rate | 0.4%±0.5 pts | 0.9% | – |
| Rental vacancy rate | 10.5%±9.2 pts | 5.0% | – |
| Single-family detached homes | 82.8%±3.6 pts | 70.5% | – |
| Mobile homes | 9.4%±2.8 pts | 5.2% | – |
| Built 2020 or later | 0.3%±0.4 pts | 1.6% | – |
| Built 1939 or earlier | 22.7%±3.3 pts | 13.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Knox County building?
Builders took permits for 2 new housing units across Knox County in 2025 (2 single-family), 0.5 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Knox County get to work?
62.9% of Knox County's workers drive alone and 22.4% work from home. The average trip to work takes 19.4 minutes.
| Measure | Knox County | Missouri | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 59.8%±3.1 pts | 63.1% | – |
| Unemployment rate | 1.1%±1.4 pts | 4.0% | – |
| Drove alone to work | 62.9%±6.0 pts | 74.8% | – |
| Carpooled | 10.1%±4.0 pts | 8.1% | – |
| Public transportation | 1.2%±1.6 pts | 0.8% | – |
| Walked | 3.2%±2.4 pts | 1.8% | – |
| Worked from home | 22.4%±6.7 pts | 13.0% | +11.1 pts |
| Mean travel time to work | 19.4 min±2.0 | 23.5 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Knox County's census tracts?
Knox County is divided into 2 census tracts. Among those with a reliable estimate, median household income runs from $47,188 (Tract 9602) to $70,385 (Tract 9601).
| Tract 960129103960100 | 1,525±197 | $70,385 |
|---|---|---|
| Tract 960229103960200 | 2,231±197 | $47,188 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Knox County compare with Missouri's other counties?
| Measure | Rank |
|---|---|
| Population | 113th of 115 |
| Growth 2020-2025 | 83rd of 115 |
| Residents per square mile | 113th of 115 |
| Median household income | 69th of 115 |
| Median home value | 111th of 115 |
| Median gross rent | 84th of 115 |
| Poverty rate | 84th of 115 |
| Bachelor's degree or higher | 86th of 115 |
| Median age | 74th of 115 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Knox County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.