Knox County, Ohio Demographics 2026

Name: Knox County, Ohio Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Knox County, Ohio has a population of 63,142, the 40th most populous county in Ohio. The median household income is $73,878 and the median home value is $239,400. The poverty rate is 11.6%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Knox County Quick Facts

Population 63,142

Median Household Income $73,878

Median Home Value $239,400

Poverty Rate 11.6%

Unemployment Rate 2.5%

Median Age 39.4 years

Homeownership Rate 75.5%

Affordability Ratio 3.2x

Bachelor's Degree+ 24.6%

High School Graduation 91.0%

Cities/Places 11

Population 63,142 40th of 88

Median Income $73,878 3% higher than state

Poverty Rate 11.6%

Unemployment 2.5%

How Knox County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	62,888	63,142	+0.4%
Median household income	$73,988	$73,878	-0.1%
Median home value	$218,300	$239,400	+9.7%

Median Household Income

Knox

$73,878

$71,389

National

$80,734

Median Home Value

Knox

$239,400

$214,800

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 12.6%

$25K-$50K 20.3%

$50K-$100K 32.7%

$100K+ 34.4%

Detailed income brackets

Under $10K

4.2%

$10K-$15K

3.0%

$15K-$20K

2.9%

$20K-$25K

2.5%

$25K-$30K

3.8%

$30K-$35K

3.6%

$35K-$40K

4.5%

$40K-$45K

4.3%

$45K-$50K

4.2%

$50K-$60K

7.8%

$60K-$75K

10.3%

$75K-$100K

14.6%

$100K-$125K

10.5%

$125K-$150K

7.9%

$150K-$200K

8.5%

$200K+

7.5%

Employment

2.5% Unemployment Rate State: 4.8%|National: 5.2%

60.0% Labor Force Participation

Housing Overview

Owner 75.5%

Renter 24.5%

Affordability Index Affordable

3.2x home value to income ratio

Median gross rent $950/mo 15.4% of median household income annually

People & Demographics

Age Distribution

Under 18

22.8%

18-34

21.9%

35-54

22.5%

55-74

25.1%

75+

7.7%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 41 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Knox County

City	Population	Median Income	Poverty	Home Value
Mount Vernon	17,052	$53,845	21.9%	$174,000
Apple Valley	5,548	$100,593	3.9%	$287,700
Fredericktown	2,652	$65,510	12.5%	$171,200
Gambier	2,126	$93,365	21.5%	$309,400
Centerburg	1,839	$76,250	9.5%	$246,900
Danville	615	$53,194	4.5%	$138,600
South Mount Vernon	589	$59,018	33.1%	N/A
Martinsburg	303	$55,313	1.7%	$95,700
Bladensburg	300	N/A	15.3%	N/A
Howard	269	N/A	5.2%	$109,800
Gann (Brinkhaven)	137	$83,507	3.6%	$91,700

Explore Ohio Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Knox County is located in Ohio with a total population of 63,142. It is the 40th most populous county out of 88 in Ohio. The county encompasses 11 Census-designated places.

Age Demographics

The median age in Knox County is 39.4 years. This is about the same as the state median of 39.7 years.

Economy, Income & Housing

The median household income in Knox County is $73,878. This is 3% higher than the state median of $71,389. It is also 8% lower than the national median of $80,734. The poverty rate stands at 11.6%. This is 12% lower than the state poverty rate of 13.3%. The unemployment rate is 2.5%. This is 48% lower than the state rate of 4.8%. The median home value is $239,400. Housing costs are 11% higher than the state median of $214,800. The home-value-to-income ratio is 3.2x. 75.5% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 67.2%.

Race & Ethnicity

Knox County has a predominantly White (non-Hispanic) population, comprising 93.0% of all residents. Hispanic or Latino residents account for 2.0%. The Black or African American population (0.9%) is well below the state average of 12.0%. The Hispanic or Latino population (2.0%) is well below the state average of 4.8%. The Asian population (0.8%) is well below the state average of 2.5%.

Education

24.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% lower than the state rate of 31.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.0%.

Data Sources & Methodology

All figures for Knox County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Ohio and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Knox County, Ohio?

Knox County has a population of 63,142, making it the 40th most populous county in Ohio.

What is the median income in Knox County?

The median household income in Knox County is $73,878 with a poverty rate of 11.6%.

How many cities are in Knox County, Ohio?

Knox County contains 11 Census-designated places.