County · Ohio

Knox County, Ohio

Knox County, Ohio. Knox County had 64,002 residents in 2025 by the Census Bureau's estimate, up 2.0% since 2020, faster than Ohio (+0.9%). It holds 34 places (8 cities, villages and boroughs, 22 towns and townships and 4 census-designated) and 14 census tracts. GEOID 39083.

Knox County is the county of the Mount Vernon, OH micropolitan statistical area (the Census Bureau's July 2023 delineation).

Residents, July 2025 estimate

64,002

Census Bureau estimate (no margin published)
2020 Census count: 62,721 · ACS 2020-2024: 63,142

Median household income

$73,878

±$3,321 (90% margin)
Ohio: $71,389

Median home value

$239,400

±$7,634 (90% margin)
Ohio: $214,800

Median gross rent

$950

±$42 (90% margin)
Ohio: $1,034

How many people live in Knox County, and is it growing?

The 2020 Census counted 62,721 residents in Knox County. The Census Bureau estimates 64,002 for July 1, 2025, up 2.0% since 2020, faster than Ohio (+0.9%). The 2020-2024 American Community Survey puts the population at 63,142 over 525 square miles of land.

July 2020→2021 −299 (62,505)
2021→2022 +598 (63,103)
2022→2023 +83 (63,186)
2023→2024 +378 (63,564)
2024→2025 +438 (64,002)

Knox County in Ohio. Boundaries: Census Bureau 2024.

Counts, ACS 2020-2024 5-year estimates, with the change from 2015-2019
Measure	Knox County	Ohio	Change since 2015-2019
Total population	63,142	11,810,293	+1,661
Households	23,491±411	4,863,191	no clear change
Average household size	2.54±0.04	2.37	no clear change
Housing units	26,078±54	5,292,391	+258

Knox County's population since 2000

From 54,500 in 2000 to 64,002 in 2025: up 17.4%. 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.

2000 Census 54,500
2005 (estimate) 58,641
2010 Census 60,921
2015 (estimate) 61,045
2020 Census 62,721
2025 (estimate) 64,002

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 34 places: 8 cities, villages and boroughs (incorporated places), 22 towns and townships (county subdivisions with their own government) and 4 census-designated places. The largest is Mount Vernon with 17,287 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.

Places in Knox County, ACS 2020-2024 5-year estimates. Ring: estimate with a coefficient of variation over 40%.

Mount Vernon	city	16,956	17,052±36	$53,845	$174,000	21.9%	100%
Howard Township	township	5,873	6,011±27	$104,696	$287,100	4.5%	100%
Apple Valley	CDP	5,352	5,548±339	$100,593	$287,700	3.9%	100%
Hilliar Township	township	3,781	3,845±44	$91,019	$267,000	4.9%	100%
Clinton Township, Knox County	township	2,886	2,847±21	$68,068	$206,500	11.2%	100%
Fredericktown	village	2,648	2,652±20	$65,510	$171,200	12.5%	100%
Union Township, Knox County	township	2,620	2,617±19	$68,636	$200,600	5.0%	100%
College Township	township	2,553	2,530±13	$100,882	$323,500	12.4%	100%
Monroe Township, Knox County	township	2,339	2,033±432	$82,218	$229,900	8.3%	100%
Gambier	village	2,213	2,126±144	$93,365	$309,400	21.5%	100%
Morris Township	township	2,098	3,002±683	$98,750	$245,700	13.1%	100%
Brown Township, Knox County	township	2,048	1,599±447	$72,613	$252,000	10.1%	100%
Liberty Township, Knox County	township	1,906	1,955±599	$121,058	$409,000	2.7%	100%
Milford Township, Knox CountyGEOID 3908350204	township	1,866	1,829±592	$91,182	$355,200	0.9%	100%
Berlin Township, Knox CountyGEOID 3908305844	township	1,772	1,843±490	$77,500	$233,500	5.7%	100%
Centerburg	village	1,690	1,839±238	$76,250	$246,900	9.5%	100%
Pleasant Township, Knox County	township	1,657	1,896±691	$124,119	$325,000	1.3%	100%
Pike Township, Knox County	township	1,656	2,009±757	$69,299	$294,000	9.9%	100%
Clay Township, Knox CountyGEOID 3908315504	township	1,542	1,025±359	$69,091	$246,900	0.5%	100%
Middlebury TownshipGEOID 3908349658	township	1,406	1,439±509	$66,458	$352,400	16.9%	100%
Butler Township, Knox CountyGEOID 3908310590	township	1,294	1,266±707	$51,086	$254,400	28.0%	100%
Miller TownshipGEOID 3908350330	township	1,095	1,395±527	$135,245	$288,300	2.5%	100%
Jackson Township, Knox CountyGEOID 3908337870	township	1,076	890±398	$72,639	$154,300	17.9%	100%
Morgan Township, Knox CountyGEOID 3908352108	township	1,034	1,109±489	not published	$319,300	17.2%	100%
Danville	village	1,019	615±235	$53,194	$138,600	4.6%	100%
Wayne Township, Knox CountyGEOID 3908382194	township	993	587±264	$73,547	$275,000	4.4%	100%
Harrison Township, Knox CountyGEOID 3908333880	township	854	754±456	$83,977	$289,500	4.5%	100%
Jefferson Township, Knox CountyGEOID 3908338668	township	768	957±331	$116,579	$412,100	7.0%	100%
South Mount VernonGEOID 3973530	CDP	714	589±278	$59,018	not published	33.1%	100%
HowardGEOID 3936512	CDP	246	269±241	not published	$109,800	5.2%	100%
MartinsburgGEOID 3948090	village	222	303±156	$55,313	$95,700	1.7%	100%
BladensburgGEOID 3906740	CDP	180	300±231	not published	not published	15.3%	100%
Gann (Brinkhaven)GEOID 3929288	village	114	137±107	$83,507	$91,700	3.6%	100%
Utica	village	2,064	2,248±360	$84,464	$150,500	5.5%	1%

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 39.4 years old; 22.8% are under 18 and 19.2% are 65 or older. The largest group is non-Hispanic white residents at 92.9%, then non-Hispanic residents of two or more races at 2.8%. 1.4% of residents were born outside the United States.

Age, origin and education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure	Knox County	Ohio	Change since 2015-2019
Median age	39.4±0.6	39.7	no clear change
Under 18 years	22.8%±0.1 pts	22.0%	–
65 years and over	19.2%±0.2 pts	18.3%	–
Hispanic or Latino (any race)	2.0%	4.8%	+0.5 pts
White alone, not Hispanic	92.9%±0.7 pts	75.8%	−2.5 pts
Black or African American alone, not Hispanic	0.9%±0.2 pts	12.0%	no clear change
Asian alone, not Hispanic	0.8%±0.2 pts	2.5%	+0.3 pts
American Indian and Alaska Native alone, not Hispanic	0.0%±0.1 pts	0.1%	–
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0.0%±0.1 pts	0.0%	–
Two or more races, not Hispanic	2.8%±0.7 pts	4.3%	–
Some other race alone, not Hispanic	0.5%±0.4 pts	0.4%	–
Born outside the United States	1.4%±0.4 pts	5.2%	no clear change
Speak a language other than English at home (age 5+)	6.3%±1.2 pts	8.0%	–
Civilian veterans (age 18+)	7.7%±1.1 pts	6.6%	–
With a disability	13.0%±1.1 pts	14.4%	–
No health insurance coverage	11.3%±1.7 pts	6.4%	no clear change
High school graduate or higher (age 25+)	91.0%±1.3 pts	91.8%	–
Bachelor's degree or higher (age 25+)	24.7%±1.9 pts	31.5%	no clear change
Graduate or professional degree (age 25+)	9.4%±1.1 pts	12.2%	–
Moved from another state in the past year	1.4%±0.4 pts	1.6%	–

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 23,491 households earn less than $73,878 a year (±$3,321), against $71,389 in Ohio. In 2015-2019 it was $71,071 in 2024 dollars; the margins of error cannot tell the two periods apart. 11.6% of residents live below the poverty line.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure	Knox County	Ohio	Change since 2015-2019
Median household income	$73,878±$3,321	$71,389	no clear change
Mean household income	$92,322±$3,373	$96,990	–
Per capita income	$35,489±$1,276	$40,552	+$3,011
People below the poverty line	11.6%±1.8 pts	13.3%	no clear change
Children under 18 below the poverty line	14.9%±4.3 pts	17.8%	no clear change
Households receiving SNAP	10.5%±1.6 pts	12.5%	–
Households with a broadband subscription	89.3%±1.6 pts	90.1%	–

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 75.5% of Knox County's occupied homes and renters 24.5%. The median owner-occupied home is valued at $239,400 by its owner (±$7,634). The median renter pays $950 a month including utilities, and 35.7% of renters pay 35% or more of their income on rent.

Housing, ACS 2020-2024 5-year estimates
Measure	Knox County	Ohio	Change since 2015-2019
Median home value (owner-occupied)	$239,400±$7,634	$214,800	+$48,027
Median gross rent	$950±$42	$1,034	no clear change
Renters paying 35% or more of income on rent	35.7%±5.9 pts	37.3%	no clear change
Median monthly owner costs, with a mortgage	$1,512±$75	$1,517	–
Owner-occupied homes	75.5%±2.1 pts	67.2%	+3.5 pts
Housing units	26,078±54	5,292,391	+258
Homeowner vacancy rate	0.7%±0.5 pts	0.8%	–
Rental vacancy rate	4.9%±3.0 pts	4.4%	–
Single-family detached homes	83.0%±1.8 pts	68.8%	–
Mobile homes	4.0%±1.1 pts	3.4%	–
Built 2020 or later	1.0%±0.5 pts	1.1%	–
Built 1939 or earlier	25.7%±1.7 pts	19.0%	–

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 270 new housing units across Knox County in 2025 (154 single-family), 4.2 per 1,000 residents.

2019 137 units
2020 131 units
2021 351 units
2022 262 units
2023 376 units
2024 194 units
2025 270 units

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?

73.8% of Knox County's workers drive alone and 13.7% work from home. The average trip to work takes 25.7 minutes. The unemployment rate in 2020-2024 averaged 2.5%.

Work and commuting, ACS 2020-2024 5-year estimates
Measure	Knox County	Ohio	Change since 2015-2019
In the labor force (age 16+)	60.0%±1.6 pts	63.1%	–
Unemployment rate	2.5%±0.6 pts	4.8%	−1.9 pts
Drove alone to work	73.8%±2.0 pts	75.1%	–
Carpooled	6.9%±1.3 pts	7.5%	–
Public transportation	0.2%±0.2 pts	1.0%	–
Walked	4.0%±0.9 pts	2.0%	–
Worked from home	13.7%±1.9 pts	13.0%	+8.3 pts
Mean travel time to work	25.7 min±1.3	23.4 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 14 census tracts. Among those with a reliable estimate, median household income runs from $41,647 (Tract 71) to $116,372 (Tract 77.02).

Census tracts of Knox County, ACS 2020-2024 5-year estimates; sort by any column

Tract 6739083006700	Danville (16%)	5,209	4,945±506	$73,224	$215,400	$678	11.8%
Tract 68.0139083006801	Apple Valley (76%)	5,737	5,898±207	$100,932	$282,500	not published	3.9%
Tract 68.0239083006802	–	5,051	5,506±660	$80,478	$259,000	$1,109	9.0%
Tract 6939083006900	Fredericktown (37%)	6,260	6,249±539	$69,800	$203,600	$861	10.0%
Tract 7039083007000	Mount Vernon (2%)	3,170	3,115±575	$82,778	$275,700	$1,156	7.0%
Tract 7139083007100	Mount Vernon (86%)	3,618	3,795±478	$41,647	$168,500	$887	36.9%
Tract 7239083007200	Mount Vernon (83%)	5,329	5,085±585	$48,385	$176,800	$941	33.2%
Tract 73.0139083007301	Gambier (47%)	3,447	3,234±188	$96,855	$284,000	$772	10.2%
Tract 73.0239083007302	Mount Vernon (75%)	3,407	3,519±526	$61,616	$225,000	$1,020	6.5%
Tract 7439083007400	Martinsburg (5%)	5,709	5,813±728	$77,844	$292,800	$1,148	6.5%
Tract 7539083007500	Mount Vernon (79%)	4,331	3,992±491	$66,029	$248,400	$938	10.3%
Tract 7639083007600	Mount Vernon (55%)	4,775	5,193±568	$64,880	$162,500	$843	10.1%
Tract 77.0139083007701	Centerburg (63%)	3,283	3,339±247	$84,652	$259,400	$867	5.4%
Tract 77.0239083007702	Centerburg (1%)	3,395	3,459±646	$116,372	$404,100	$1,098	2.3%

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 Ohio's other counties?

Knox County's rank among Ohio's counties with a reliable estimate (1 = highest)
Measure	Rank
Population	40th of 88
Growth 2020-2025	15th of 88
Residents per square mile	44th of 88
Median household income	27th of 88
Median home value	16th of 88
Median gross rent	23rd of 88
Poverty rate	57th of 88
Bachelor's degree or higher	30th of 88
Median age	75th of 88

Every county in Ohio

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.