New Castle DE
311 active listings out of 20K total properties we track across 9 New Castle ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
Download New Castle, DE property data
501,808 property records for all of Delaware — address, beds/baths, sqft, year built, status, list and last-sale price, price and tax history. Parquet or CSV.
Files are published by ZIP, county and state; this city is inside the state file.
Monthly snapshot · 35.3 MB Parquet · CSV (88.7 MB)
Records keep changing after a snapshot is compiled.
Rebuilt every day · same columns, same file layout
While you're here, take in the bigger picture — maps below show Delaware (statewide), not just New Castle. Same company, same dataset, different resolution.
Inventory breakdown
Distribution of the 311 currently-active listings in New Castle, DE. Full dataset covers 20K properties — listings, off-market homes, rentals, and full history.
ZIP codes in New Castle
Drill into any ZIP for hex-level breakdowns.
Nearby cities
Other Delaware cities within driving distance.
Get New Castle, DE data in your app
GET https://api.straply.com/v1/markets/city/new-castle-de
Authorization: Bearer $STRAPLY_KEY{
"city": "new-castle-de",
"total_tracked": 20190,
"active": 311,
"median_list": 330000
}New Castle, DE real estate: market summary
As of November 2026, Straply tracks 20,190 homes in New Castle, DE, with 311 active for sale at a median list price of $330,000 (~$214/sq ft). Notably, most homes were built in the 1950s.
- Median list price
- $330,000
- Median $/sq ft
- $214
- Active listings
- 311
- Median sale price
- $277,000 (-8% YoY)
- Properties tracked
- 20,190
Frequently asked: New Castle, DE real estate
What is the median home price in New Castle?
The median list price in New Castle, DE is $330,000 (about $214 per square foot), based on 311 active listings tracked by Straply as of November 2026.
What price range are homes in New Castle?
Active listings in New Castle, DE concentrate in: 50% $300k–$500k and 42% under $300k.
Are home prices in New Castle going up or down?
The median sale price is $277,000, down 8% year over year. Straply tracked 573 sales here over the past 12 months.
How many homes are for sale in New Castle?
Straply is tracking 311 active listings in New Castle, DE out of 20,190 properties on record as of November 2026.
How old are the homes in New Castle?
Most homes in New Castle, DE were built in the 1950s. About 36% were built after 1980, while 6% predate 1940. The newest tracked home dates to 2026.
What types of homes are in New Castle?
New Castle, DE is mostly single-family homes (65% of listings). Also common: townhouses 27%.
How many bedrooms do homes in New Castle typically have?
The most common size in New Castle, DE is 3 bd.
What are the most active ZIP codes in New Castle?
The ZIP codes with the most active listings in New Castle, DE are 19720, 19702, 19730.
What areas are near New Castle?
Nearby markets Straply also tracks include Wilmington, Delaware City, Newark, Bear.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.