Overview
          831
                  Total Population
                43.5
                  Median age
                49.94%
                  Female population %
                100.2:100
                  Gender ratio (M:F)
                45-49 years
                  Largest age group
                46.0
                  Total dependency ratio
                White
                  Largest racial group
                28
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Knoxville's population is old compared to the rest of the country:
- The median age in Knoxville is 43.5, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Knoxville's population under 18 was 22.74%, compared to the 22.51% nationwide.
 - Knoxville's elderly or the senior population (over 65 age) was 15.28% as compared to 16.04% nationwide.
 - Of the total population in Knoxville, 16.25% were under the age of 15, 21.54% aged 15 to 29, 46.93% aged 30 to 64, 12.88% aged 65 to 84, and 2.41% were 85 years of age and older.
 
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Gender
There are 1 less females than males in Knoxville:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 49.94% females and 50.06% males in Knoxville, PA.
 - The Knoxville, PA gender ratio is 100.2:100 i.e. 100.2 men to 100 women (1.002).
 - For male population, the largest age group is 15-19 years with a population of 59.
 - For the female population, the largest age group is 45-49 years with a population of 72.
 
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Race / Ethnicity
Knoxville's population is non diverse:
- Racial distribution of Knoxville population: 94.22% are White and 5.78% are multiracial.
 - Knoxville's racial breakdown clearly shows that there is an absolute majority of White population in the borough.
 - By ethnicity, 28 is Hispanic or Latino (of any race), and 803 (96.63% of the total population) is Non-Hispanic.
 - The largest racial group in Knoxville is White with a population of 783 (94.22% of the total population).
 
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Year by year
Knoxville's population has already reached its peak and is showing a trend of decline:
- The peak population was 681 in the year 2020
 - From 2000 to 2010, Knoxville's population increased by 15 (2.44%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Knoxville's population increased by 51 (8.10%), according to Census Bureau's Population Estimates Program. For the same period, the rate of growth for the United States was 7.17%.
 - Between the year 2000 and 2022, Knoxville's population was lowest in year 2009 at 585.
 
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References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
 - U.S. Census Bureau Population Estimates Population Estimates Program (PEP)