Delaware County, PA Population

The population of Delaware County is 573,883, according to the U.S. Census Bureau ACS estimates.
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Updated Jun 23, 2023
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

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.
The graph shows Delaware County's population by age group, with age group on x-axis and the respective age group's percent of the total population on y-axis
Delaware County, PA population by age group. The largest age group was 55-59 years with a poulation of 42,759 (7.45% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about Delaware County, PA population by age ➔

Gender

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.
The grouped bar chart shows Delaware County, PA population by age and gender across 18 age groups, defined between the age of 0 and 85 and above. The female population is shown in pink color bar and male population is shown in blue color bar. Age group is plotted on x axis and population on y axis.
California population by gender and age. Largest age group (population): Male # 15-19 years (20,881) | Female # 55-59 years (22,719). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about Delaware County, PA population by gender ➔

Race / Ethnicity

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).
The bar chart shows Delaware County, PA population by race, in percentage. The numbers shown are based on the American Community Survey respondents self identified race. The Hispanic and Latino population is spread across the races identified and not as a separate race category.
Delaware County, PA population by race. The largest racial group in Delaware County is White with a population of 382,352 (66.63% of the total population). Source: U.S. Census Bureau American Community Survey (ACS) 2017-2021 5-Year Estimates.

Read more about Delaware County, PA population by race ➔

Year by year

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.
The graph shows Delaware County's population from 2000 to 2022, with years on x-axis and population on y-axis
Delaware County's population from 2000 to 2022. The estimated population at the end of 2022 was 575,182. Source: U.S. Census Bureau (Population Estimates Program)

Read more about Delaware County, PA population by year ➔

References

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Delaware County, PA Demographics

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