Wilmington demographics profile

Population density (sq mi)6,55736891
Median age35.339.637.7
Male/Female ratio0.9:10.9:11.0:1
Married (15yrs & older)32%54%55%
Families w/ Kids under 1846%39%43%
Speak English88%87%79%
Speak Spanish10%7%13%
Wilmington, DE has a population of 71,502 and is the 506th largest city in the United States. The population density is 6,557 per sq mi which is 1680% higher than the Delaware average and 7138% higher than the national average. The median age in Wilmington is 35 which is approximately 11% lower than the Delaware average of 40. In Wilmington, 32% of the population over 15 years of age are married, 88% speak English and 10% speak Spanish. 59% of Wilmington residents were born in Delaware, 32% were born out of state, 3% were born outside of the United States and 6% were foreign born.

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Did you know?

  • The population density in Wilmington is 1680% higher than Delaware.
  • The median age in Wilmington is 11% lower than Delaware.
  • In Wilmington 33.82% of the population is White.
  • In Wilmington 57.67% of the population is Black or African American.
  • In Wilmington 1.43% of the population is Asian.

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Compare Wilmington, DE Demographics To Other Cities

Wilmington population breakdown by race

Black or African American57.67%21.72%12.63%
American Indian0.17%0.37%0.82%
Native Hawaiian0.02%0.05%0.18%
Mixed race2.37%2.76%3.06%
Other race4.52%2.19%4.75%
In Wilmington, 12.2% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Wilmington age breakdown

Marital status

Age of children in married couples

Source: The Wilmington, DE demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
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