New Castle is a city in Henry County, Kentucky, home to about 1,052 people across 0.4 square miles. Its ZIP codes are 40050 and 40058.
Homes sold for a median of $126 per square foot in the three months ending August 2026, a seller’s market.
Mostly New Castle
All in New Castle
Each card is that ZIP code’s whole market, including any part outside New Castle. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up New Castle’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Louisville Muhammad Ali International Airport (SDF)36 miles away |
|---|---|
| Nearest city of 250,000+ | Louisville/Jefferson County, KY32 miles away |
| Nearest city of 1 million+ | Chicago, IL269 miles away |
Straight-line distances from the center of New Castle; 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.
New Castle had 884 residents in the 2020 census, down 4% since 2000.
It’s the 235th largest of 553 towns in Kentucky by population.
Henry County grew from 14,620 residents in 1900 to 15,678 in 2020.
Henry County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 88°F in summer, and winter lows average 23°F. About 53 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Crestwood 4ne, KY weather station (14 miles away).
1,707 jobs at 212 businesses in Henry County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
7 doctors and other health care providers list an office in New Castle’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 3 |
|---|---|
| Mental health providers | 2 |
| Physical and occupational therapists | 1 |
| Chiropractors | 1 |
| Pharmacies | 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 (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.
Public schools here are run by Henry County. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Henry County Early ChildhoodNew Castle | Pre-K | 109 | Public | 0.7 mi |
| New Castle Elementary SchoolNew Castle | K–5 | 326 | Public | 0.7 mi |
| Henry County Middle SchoolNew Castle | 6–8 | 421 | Public | 1.4 mi |
| Henry County High SchoolNew Castle | 9–12 | 608 | Public | 1.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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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.