1960 to 2000 data as of April 1.
Data for other years as of July 1.
* The April 1, 1990, census counts include corrections processed through August 1997, results of special censuses and test censuses, and do not include adjustments for census coverage errors.
Data from previous years can be found .
In 2023, the resident population in Delaware was about * people. This is a significant increase from 1960, when the resident population was about ** people. Delaware is the second-smallest state in the United States by land area.
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U.S. Census Bureau. (June 29, 2024). Resident population in Delaware from 1960 to 2023 (in 1,000s) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 21, 2026, from /statistics/1090452/resident-population-delaware/
U.S. Census Bureau. "Resident population in Delaware from 1960 to 2023 (in 1,000s)." Chart. June 29, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 21, 2026. /statistics/1090452/resident-population-delaware/
U.S. Census Bureau. (2024). Resident population in Delaware from 1960 to 2023 (in 1,000s). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 21, 2026. /statistics/1090452/resident-population-delaware/
U.S. Census Bureau. "Resident Population in Delaware from 1960 to 2023 (in 1,000s)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 29 Jun 2024, /statistics/1090452/resident-population-delaware/
U.S. Census Bureau, Resident population in Delaware from 1960 to 2023 (in 1,000s) ÌÇÐÄÆƽâ°æ, /statistics/1090452/resident-population-delaware/ (last visited July 21, 2026)
Resident population in Delaware from 1960 to 2023 (in 1,000s) [Graph], U.S. Census Bureau, June 29, 2024. [Online]. Available: /statistics/1090452/resident-population-delaware/
