Ranking of New Castle County, DE Cities and Places By Population in 2021
Updated on August 16, 2024.
Based on the US Census Vintage data estimates, in 2021, among all New Castle County, DE cities and places, Balance of New Castle County had the highest population (427.35K), followed by Wilmington city (70.71K), and Newark city (29.88K).
The chart below shows the top 10 cities and places, and the table below shows the ranking of all New Castle cities and places.
You can see similar information for other Delaware counties. You can also see the ranking of all cities and places in Delaware.
Data Source: US Census Bureau (Vintage).
See this for other years:
Ranking of New Castle County, DE Cities and Places By Population in 2021
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| Rank | City or Place | Population |
|---|---|---|
| 1 | Balance of New Castle County | 427350 |
| 2 | Wilmington city | 70708 |
| 3 | Newark city | 29876 |
| 4 | Middletown town | 24273 |
| 5 | Elsmere town | 6188 |
| 6 | New Castle city | 5516 |
| 7 | Townsend town | 2802 |
| 8 | Delaware City city | 1887 |
| 9 | Bellefonte town | 1226 |
| 10 | Newport town | 901 |
| 11 | Arden village | 430 |
| 12 | Odessa town | 365 |
| 13 | Ardentown village | 252 |
| 14 | Ardencroft village | 229 |
| 15 | Smyrna town (pt.) | 26 |
| 16 | Clayton town (pt.) | 0 |