Overview
          1,019
                  Total Population
                50.3
                  Median age
                45.44%
                  Female population %
                120.1:100
                  Gender ratio (M:F)
                45-49 years
                  Largest age group
                47.9
                  Total dependency ratio
                White
                  Largest racial group
                12
                  Hispanic population
                Sources: U.S. Census Bureau, American Community Survey (ACS) 2021
TABLE OF CONTENTS
Age
Oliver township's population is old compared to the rest of the country:
- The median age in Oliver township is 50.3, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
 - Oliver township's population under 18 was 14.43%, compared to the 22.51% nationwide.
 - Oliver township's elderly or the senior population (over 65 age) was 22.37% as compared to 16.04% nationwide.
 - Of the total population in Oliver township, 10.01% were under the age of 15, 15.51% aged 15 to 29, 52.11% aged 30 to 64, 20.22% aged 65 to 84, and 2.16% were 85 years of age and older.
 
Read more about Oliver township, Jefferson County, Pennsylvania population by age ➔
Gender
There are 93 less females than males in Oliver township:
- The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 45.44% females and 54.56% males in Oliver township, Jefferson County, Pennsylvania.
 - The Oliver township, Jefferson County, Pennsylvania gender ratio is 120.1:100 i.e. 120.1 men to 100 women (1.201).
 - For male population, the largest age group is 60-64 years with a population of 88.
 - For the female population, the largest age group is 55-59 years with a population of 63.
 
Read more about Oliver township, Jefferson County, Pennsylvania population by gender ➔
Race / Ethnicity
Oliver township's population has become increasingly diverse:
- Racial distribution of Oliver township population: 92.44% are White, 0.59% are some other race and 6.97% are multiracial.
 - Oliver township's racial breakdown clearly shows that there is an absolute majority of White population in the township.
 - By ethnicity, 12 is Hispanic or Latino (of any race), and 1,007 (98.82% of the total population) is Non-Hispanic.
 - The largest racial group in Oliver township is White with a population of 942 (92.44% of the total population).
 
Read more about Oliver township, Jefferson County, Pennsylvania population by race ➔
Year by year
Oliver township's population has already reached its peak and is showing a trend of decline:
- The peak population was 1,150 in the year 2008
 - From 2000 to 2010, Oliver township's population decreased by 40 (3.55%), as compared to the national growth of 9.63%.
 - From 2010 to 2020, Oliver township's population decreased by 80 (7.37%), 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, Oliver township's population was lowest in year 2022 at 992.
 
Read more about Oliver township, Jefferson County, Pennsylvania population by year ➔
References
- U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates
 - U.S. Census Bureau Population Estimates Population Estimates Program (PEP)