New Castle, DE
Population 5,519 · Delaware
About New Castle, DE
New Castle is a small community in Delaware with a population of 5,519 residents. The median household income is $92,565 per year, which is above the national average. The median age in New Castle is 46.4 years.
Housing in New Castle has a median home value of $262,100 and median monthly rent of $1,675. Of the 2,855 total housing units, the majority are owner-occupied, with 1,719 owner-occupied and 987 renter-occupied units.
The unemployment rate in New Castle is 1.1% and the poverty rate is 3.4%. 32.2% of residents hold a bachelor's degree or higher. The average commute time is 21.9 minutes.
How New Castle Ranks in Delaware
Cost of Living in New Castle, DE
Compared to national averages, New Castle has a median household income of $92,565 (23% above the national median of $75,149). Home values average $262,100, which is 7% above the national median. Monthly rent at $1,675 is 44% above the US average of $1,163. Within Delaware, New Castle's income is 8% above the state average of $85,962, and home values are 32% below the state median of $387,860.
Why Live in New Castle, DE?
New Castle offers a strong local economy with a median household income of $92,565, well above the national average, and a strong job market with an unemployment rate of just 1.1%, and a low poverty rate of 3.4%, better than the national average. Additionally, the city features short commute times averaging just 21.9 minutes.
New Castle has a population of 5,519 with a median age of 46.4 years. Compare New Castle with other cities to see how it stacks up, or explore all cities in Delaware.
Similar Cities Near New Castle
Cities in Delaware with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Elsmere | 6,189 | $76,378 | $210,200 | Compare |
| Edgemoor | 6,671 | $79,572 | $291,000 | Compare |
| Rising Sun-Lebanon | 4,195 | $109,167 | $388,600 | Compare |
| Clayton | 4,086 | $103,211 | $343,700 | Compare |
| Laurel | 4,043 | $44,593 | $192,700 | Compare |
| Camden | 4,011 | $61,895 | $268,800 | Compare |
| Millsboro | 7,152 | $77,750 | $297,000 | Compare |
| Pike Creek | 7,185 | $135,703 | $414,700 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in Delaware
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about New Castle
What is the population of New Castle, DE?
The population of New Castle, DE is 5,519 according to the latest Census data.
What is the median household income in New Castle?
The median household income in New Castle, DE is $92,565 per year.
What is the median home value in New Castle?
The median home value in New Castle, DE is $262,100.
What is the average rent in New Castle?
The median monthly rent in New Castle, DE is $1,675.
What is the unemployment rate in New Castle?
The unemployment rate in New Castle, DE is 1.1%.