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Demographic Information on Delaware County Population

Information is based on current available Census unless otherwise indicated.

Additional Census information can be found at the Census website: or on the Delaware County website:

Delaware County:

558,979 2010 Census
562,960 2014 Estimate
Median Household Income: $64,041 2013 Census
Age Breakdown 2013 Census
Persons 18 years of age and under 28.7%
Persons 19 to 64 years of age 56.4%
Persons age 65 + 14.9%
Educational Attainment:
(Percentage of residents with) 2000 Census
High School Dip: 92%
Associate degree: 36%
Bachelor’s degree: 30%
Graduate degree: 12%