New Castle, KY ZIP code
The ZIP code for New Castle, Kentucky is 40050. It is in Henry County.
- Population in these ZIPs
- 2,045
- Avg. median income
- $44,700population-weighted
- Typical home value
- $213,700population-weighted
- Metro area
- Louisville/Jefferson County, KY-IN
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New Castle, KY ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 40050 | 2,045 | $44,688 | $213,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near New Castle
- Port Royal 2 mi
- Sulphur 3 mi
- Campbellsburg 5 mi
- Eminence 6 mi
- Smithfield 7 mi
- Pleasureville 8 mi
- Pendleton 8 mi
- Turners Station 9 mi
- Bethlehem 10 mi
- Perry Park 10 mi
- Lockport 12 mi
- Bedford 13 mi
Frequently asked questions
What is the ZIP code for New Castle, KY?
The ZIP code for New Castle, KY is 40050.
What county is New Castle, Kentucky in?
New Castle ZIP codes are in Henry County.