Source: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer. Rankings among the 50 states.
Historical data
Pick an indicator to see its long-run evolution.
Population
1850–2024U.S. Census (decennial), 1850–2020 + estimates.
Population pyramid
Delaware's civilian population by sex and five-year age group. Choose a year to see how the age structure has changed.
Tap an age group in the pyramid to see its detail.
Under 15
174,696 (16.7%)
15 to 64
644,810 (61.5%)
65 and older
229,028 (21.8%)
Source: U.S. Census Bureau, SC-EST2020 and SC-EST2024 age and sex estimates (civilian population, July 1).
Age, sex and longevity
The main indicators describing Delaware's age structure, sex distribution and life expectancy.
| Median age | 41.6 years | |
| Female | 51.6% | |
| Male | 48.4% | |
| Under 18 | 20.3% | |
| 65 and older | 21.0% | Among the highest shares in the U.S. |
| Life expectancy | 77.4 years |
Population, households and density
How many people and households live in Delaware, how concentrated they are and how the population is changing.
| Total population | 1.05 M | 45th in the U.S. |
| Density | 208 /km² | 6th in the U.S. |
| Households | 400,000 | |
| Urban population | 83.3% | |
| Growth | +1.0%/yr | 2020–2024, fastest in the Northeast |
Race, ethnicity and origin
Delaware is one of the most diverse small states, with a Black population share well above the national average concentrated in Wilmington and Dover, plus a rapidly growing Hispanic community in Georgetown and Seaford.
| White (non-Hispanic) | 58.6% | |
| Black or African American | 22.9% | Well above U.S. average |
| Hispanic or Latino | 10.9% | |
| Asian | 4.4% | |
| Two or more races | 3.0% | |
| Native American | 0.4% | |
| Largest ancestries | Irish, German, Italian, English | |
| Hispanic origins | Mexican, Guatemalan, Puerto Rican |