Delaware County, PA Population

Overview

573,883

Total Population

39.0

Median age

51.59%

Female population %

93.8:100

Gender ratio (M:F)

55-59 years

Largest age group

53.0

Total dependency ratio

White

Largest racial group

23,944

Hispanic population

Sources: U.S. Census Bureau, American Community Survey (ACS) 2021

TABLE OF CONTENTS

Age

Delaware County's population is old compared to the rest of the country:

The median age in Delaware County is 39.0, compared to 38.8 nationwide, according to the American Community Survey 2017 - 2021 5 Year estimates.
Delaware County's population under 18 was 22.20%, compared to the 22.51% nationwide.
Delaware County's elderly or the senior population (over 65 age) was 16.36% as compared to 16.04% nationwide.
Of the total population in Delaware County, 18.26% were under the age of 15, 19.88% aged 15 to 29, 45.49% aged 30 to 64, 13.90% aged 65 to 84, and 2.46% were 85 years of age and older.

There are 18,257 more females than males in Delaware County:

The female percentage in the USA is 50.50% while the male percentage is 49.50%, compared to 51.59% females and 48.41% males in Delaware County, PA.
The Delaware County, PA gender ratio is 93.8:100 i.e. 93.8 men to 100 women (0.938).
For male population, the largest age group is 15-19 years with a population of 20,881.
For the female population, the largest age group is 55-59 years with a population of 22,719.

Delaware County's population has become increasingly diverse:

Racial distribution of Delaware County population: 66.63% are White, 21.79% are Black or African American, 0.13% are American Indian and Alaska Native, 5.96% are Asian, 0.07% are Native Hawaiian and other Pacific Islander, 1.61% are some other race and 3.81% are multiracial.
Delaware County's racial breakdown clearly shows that there is an absolute majority of White population in the county.
By ethnicity, 23,944 is Hispanic or Latino (of any race), and 549,939 (95.83% of the total population) is Non-Hispanic.
The largest racial group in Delaware County is White with a population of 382,352 (66.63% of the total population).

Delaware County's population has already reached its peak and is showing a trend of decline:

The peak population was 576,772 in the year 2021
From 2000 to 2010, Delaware County's population increased by 7,236 (1.31%), as compared to the national growth of 9.63%.
From 2010 to 2020, Delaware County's population increased by 17,314 (3.10%), 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, Delaware County's population was lowest in year 2000 at 551,773.