Knox County, Tennessee Population 2021

Knox County, Tennessee's estimated population is 478,423 with a growth rate of 0.85% in the past year according to the most recent United States census data. Knox County, Tennessee is the 4th largest county in Tennessee. The 2010 Population was 432,938 and has seen a growth of 10.51% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
2021478,4234,0550.85%
2020474,3684,0550.86%
2019470,3134,0550.87%
2018466,2584,6931.02%
2017461,5655,4761.20%
2016456,0894,7921.06%
2015451,2973,3940.76%
2014447,9033,5890.81%
2013444,3143,5230.80%
2012440,7914,0150.92%
2011436,7763,8380.89%
2010432,93897,18928.95%
1990335,74916,0555.02%
1980319,69443,40115.71%
1970276,29325,77010.29%
1960250,52327,51612.34%
1950223,00744,53924.96%
1940178,46822,56614.47%
1930155,90242,97638.06%
1920112,92618,73919.90%
191094,18719,88526.76%
190074,30214,74524.76%
189059,55720,43352.23%
188039,12410,13434.96%
187028,9906,17727.08%
186022,8134,00621.30%
185018,8073,32221.45%
184015,4859876.81%
183014,4981,46411.23%
182013,0342,86328.15%
181010,171-2,275-18.28%
180012,4460.00%
2021 Growth Rate
0.85%
County Website
Founded
June 11, 1792
County Seat
2010 Population
432,938
Growth Since 2010
10.51%
map placeholder

Knox County, Tennessee Population Growth

Population by Race

Race Population Percentage
White394,10585.47%
Black or African American40,1478.71%
Two or More Races10,3372.24%
Asian10,1142.19%
Some Other Race4,8901.06%
American Indian and Alaska Native1,3060.28%
Native Hawaiian and Other Pacific Islander2050.04%
Loading...

Knox County, Tennessee Population by Race

Knox County, Tennessee Population Pyramid $2021

Loading...

Knox County, Tennessee Median Age

37.4


Total

36.2


Male

38.6


Female

Knox County, Tennessee Adults

There are 363,632 adults, (71,194 of whom are seniors) in Knox County, Tennessee.

Knox County, Tennessee Age Dependency

57.7

Age Dependency Ratio

24.3

Old Age Dependency Ratio

33.3

Child Dependency Ratio

Knox County, Tennessee Sex Ratio

Female

236,920

51.38%

Male

224,184

48.62%

Knox County, Tennessee Population by Age

Knox County, Tennessee Renter vs Owner Occupied by Household Type

Loading...

Knox County, Tennessee Household Types

Type Owner Renter
Married81.1%18.9%
All64.3%35.7%
Male55%45%
Non Family49%51%
Female48.4%51.6%

64.3%

Rate of Home Ownership

Knox County, Tennessee Households and Families

Type Count Average Size Owned
All187,3192.464.3
Married88,1403.0581.1
Non Family71,2841.349
Female20,8453.1448.4
Male7,0503.1555

3

Average Family Size

2.4

Average Household Size

Loading...

Knox County, Tennessee Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade8,1052.63%
9th to 12th Grade17,4435.66%
High School Graduate77,93925.27%
Some College63,11720.47%
Associates Degree25,6768.33%
Bachelors Degree69,08522.40%
Graduate Degree47,00115.24%
Loading...

Knox County, Tennessee Educational Attainment by Sex (over 25)

Knox County, Tennessee Educational Attainment by Race

Loading...
Race Total High School Bachelors
White262,721243,990102,064
Black24,07021,6524,944
Hispanic9,8496,6232,679
Asian6,9676,4174,958
2+ Races3,6963,2601,182
Other Race2,4171,580528
Native American1,053783160
Islander16511542

The highest rate of high school graduation is among white people with a rate of 92.87%.

The highest rate of bachelors degrees is among asian people with a rate of 71.16%.

Knox County, Tennessee Educational Attainment by Race

Loading...
Name Average Male Female
Overall$39,362$46,371$32,454
Less Than 9th Grade$20,524$24,172$16,119
High School Graduate$29,256$33,835$23,137
Some College$34,927$41,375$30,323
Bachelors Degree$49,147$62,393$41,659
Graduate Degree$63,057$81,795$51,845

$39,362

Average Earnings

$46,371

Average Male

$32,454

Average Female

Knox County, Tennessee Earnings by Educational Attainment

Knox County, Tennessee Language by Age

Loading...

Knox County, Tennessee Language

94.16% of Knox County, Tennessee residents speak only English, while 5.84% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.75% of the population.

Knox County, Tennessee Language

Knox County, Tennessee Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White370,88842,93111.58%
Black38,66813,49934.91%
Hispanic19,4225,48328.23%
Multiple9,8412,28823.25%
Other4,8561,70735.15%
Asian9,8091,14611.68%
Native1,2761199.33%
Islander1745028.74%

14.54%

Overall Poverty Rate

13.46%

Male Poverty Rate

15.56%

Female Poverty Rate

Poverty in Knox County, Tennessee

The race most likely to be in poverty in Knox County, Tennessee is Other, with 35.15% below the poverty level.

The race least likely to be in poverty in Knox County, Tennessee is Native, with 9.33% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.07%. Among those working part-time, it was 21.68%, and for those that did not work, the poverty rate was 22.91%.

Knox County, Tennessee Poverty

Loading...
Name Poverty
Less Than 9th Grade30.88%
High School15.62%
Some College10.11%
Bachelors or Greater4.13%

Knox County, Tennessee Poverty Rate by Education

Loading...
Rate Poverty
Female Unemployed46.06%
Male Unemployed38.98%
Female Employed9.25%
Male Employed6.82%

Knox County, Tennessee Poverty Rate by Employment Status and Sex

Knox County, Tennessee Income by Household Type

Loading...
Name Median Mean
Households$57,470$80,336
Families$76,397$99,708
Married Families$90,321$114,564
Non Families$33,911$46,732
Loading...

Income by Household Type

Knox County, Tennessee Marital Status

Loading...

Marriage Rates

48.9%

Overall Marriage Rate

50.6%

Male Marriage Rate

47.3%

Female Marriage Rate

Knox County, Tennessee Married by Age and Sex

Loading...

Knox County, Tennessee Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Knox County, Tennessee Marital Status by Race

Loading...

Knox County, Tennessee Marital Status

Loading...

29,791

Number of Veterans

27,240

Male Veterans

2,551

Female Veterans

War Veterans
Vietnam10,583
First Gulf War6,724
Second Gulf War5,800
Korea2,179
World War II919

Knox County, Tennessee Veterans by War

Loading...
Age Group Veterans
35 to 547,532
65 to 747,399
75+6,737
55 to 645,366
18 to 342,757

Knox County, Tennessee Veterans by Age

Loading...
Name Veterans % of Total
White26,8578.51%
Black2,1287.15%
2+ Races4378.06%
Hispanic3172.61%
Native American22119.15%
Asian1351.66%
Other Race130.46%

Knox County, Tennessee Veterans by Race

Knox County, Tennessee Veterans by Education

Loading...

6.88%

Veteran Poverty Rate

26.84%

Veteran Disability Rate

Knox County, Tennessee Veterans by Education

Loading...

64.9%

Labor Force Participation

62%

Employment Rate

4.3%

Unemployment Rate

Knox County, Tennessee Employment by Age

Loading...

Knox County, Tennessee Employment by Race

Loading...

Knox County, Tennessee Employment by Education

Origin of Non-Citizens

Loading...

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Loading...

59.17%

Born in Knox County, Tennessee

95.07%

Native Born

4.93%

Foreign Born

2.79%

Non Citizen

2.14%

Naturalized

Place of Birth

95.07% of Knox County, Tennessee residents were born in the United States, with 59.17% having been born in Tennessee. 2.79% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Knox County, Tennessee Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources