Princeton, KY ZIP code
The ZIP code for Princeton, Kentucky is 42445. It is in Caldwell County.
- Population in these ZIPs
- 10,533
- Avg. median income
- $55,100population-weighted
- Typical home value
- $144,600population-weighted
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Princeton, KY ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 42445 | 10,533 | $55,096 | $144,600 |
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 Princeton
- Fredonia 10 mi
- Dawson Springs 10 mi
- Eddyville 11 mi
- Cerulean 14 mi
- Saint Charles 15 mi
- Kuttawa 18 mi
- Dycusburg 18 mi
- Providence 19 mi
- Nebo 20 mi
- Marion 20 mi
- Nortonville 21 mi
- Cadiz 21 mi
Frequently asked questions
What is the ZIP code for Princeton, KY?
The ZIP code for Princeton, KY is 42445.
What county is Princeton, Kentucky in?
Princeton ZIP codes are in Caldwell County.