Delaware City is a city in New Castle County, Delaware, home to about 1,950 people across 1.9 square miles. Its ZIP code is 19706.
Homes sold for a median of $218 per square foot in the three months ending August 2026, a balanced market.
Each card is that ZIP code’s whole market, including any part outside Delaware City. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Philadelphia International Airport (PHL)28 miles away |
|---|---|
| Closer regional airport | Wilmington Airport (ILG)7 miles away |
| Nearest city of 250,000+ | Philadelphia, PA39 miles away |
Straight-line distances from the center of Delaware City; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Delaware City had 1,885 residents in the 2020 census, up 30% since 2000.
It’s the 44th largest of 79 towns in Delaware by population.
New Castle County grew from 109,697 residents in 1900 to 570,719 in 2020.
New Castle County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 87°F in summer, and winter lows average 26°F. About 45.5 inches of rain and melted snow fall in a typical year, with about 20 inches of snow.
Source: NOAA 1991–2020 climate normals, Wilmington New Castle Co Ap, DE weather station (7 miles away).
306,745 jobs at 17,855 businesses in New Castle County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Delaware City.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (4 nearby)
Grocery stores
Libraries (1 nearby)
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.