Wilmington population
Wilmington, Delaware had an estimated 73,512 residents on July 1, 2025, the 533rd-largest city in the US. That is up 3.8% since the 2010 Census and up 1.3% since 2000.
- Population, July 2025
- 73,512+3.7% since April 2020
- People per sq mile
- 6,74710.9 sq mi of land
- Median age
- 37.015.5% are 65 or older
- Households with kids
- 23.6%with anyone under 18
Population by year, 2000 to 2025
| Year | Population | Change | Basis |
|---|---|---|---|
| 2025 | 73,512 | +333 | Estimate, July 1 |
| 2024 | 73,179 | +990 | Estimate, July 1 |
| 2023 | 72,189 | +345 | Estimate, July 1 |
| 2022 | 71,844 | +1,011 | Estimate, July 1 |
| 2021 | 70,833 | -83 | Estimate, July 1 |
| 2020 | 70,916 | +544 | April 2020 estimates base |
| 2019 | 70,372 | -201 | Estimate, July 1 |
| 2018 | 70,573 | -214 | Estimate, July 1 |
| 2017 | 70,787 | -260 | Estimate, July 1 |
| 2016 | 71,047 | -205 | Estimate, July 1 |
| 2015 | 71,252 | -59 | Estimate, July 1 |
| 2014 | 71,311 | +9 | Estimate, July 1 |
| 2013 | 71,302 | +164 | Estimate, July 1 |
| 2012 | 71,138 | +188 | Estimate, July 1 |
| 2011 | 70,950 | +99 | Estimate, July 1 |
| 2010 | 70,851 | -303 | 2010 Census (April 1) |
| 2009 | 71,154 | -309 | Estimate, July 1 |
| 2008 | 71,463 | -229 | Estimate, July 1 |
| 2007 | 71,692 | -236 | Estimate, July 1 |
| 2006 | 71,928 | -183 | Estimate, July 1 |
| 2005 | 72,111 | -92 | Estimate, July 1 |
| 2004 | 72,203 | -131 | Estimate, July 1 |
| 2003 | 72,334 | -62 | Estimate, July 1 |
| 2002 | 72,396 | -114 | Estimate, July 1 |
| 2001 | 72,510 | -51 | Estimate, July 1 |
| 2000 | 72,561 | April 2000 estimates base |
Year-to-year changes across 2010 and 2020 mix census counts with estimates, so small jumps at those years are partly method changes.
Frequently asked questions
What is the population of Wilmington in 2025?
The Census Bureau estimates Wilmington had 73,512 residents on July 1, 2025, making it the 533rd-largest city in the US.
Is Wilmington growing?
Yes. Wilmington has grown 3.8% since the 2010 Census (70,851 people), and grown 3.7% since 2020.
What was the population of Wilmington in 2000?
About 72,561 (the Census Bureau's April 2000 estimates base). By the 2010 Census it was 70,851.
How dense is Wilmington?
Wilmington has about 6,747 people per square mile of land (10.9 square miles).
More about Wilmington
See cost of living, jobs and commutes in Wilmington, Wilmington weather by month, or every Wilmington ZIP code. For the biggest cities in the country, see the largest US cities.