Princeton, KY ZIP Codes
One ZIP code serves Princeton, Kentucky: 42445. Together they are home to 10,533 residents in 4,310 households. That is more than the 6,241 people counted inside Princeton city limits, because these ZIP codes reach past its boundary.
Princeton city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 6,241 |
| Households | 2,367 |
| Median household income | $47,411 |
| Median home value | $96,600 |
| Median age | 40.5 |
| Median rent | $762 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 10,533 |
| Households (sum of ZIP codes) | 4,310 |
| Median household income, range across ZIP codes | $55,096 (42445) to $55,096 (42445) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $55,096 |
| Homeowners | 65.9% |
| Households with kids under 18 | 29.5% |
| Moved in the past year | 7.5% |
| Carrier routes in EDDM2GO's route library | 10 routes, 4,795 homes (1 of 1 ZIP codes) |
Every ZIP code in Princeton
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 42445 | Princeton | 10,533 | 4,310 | $55,096 | $118,100 | 65.9% | 29.5% | 7.5% | 10 | 5,082 | 3% of its land; mailing city |
A ZIP code is listed for Princeton when at least 10% of its land lies inside Princeton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Princeton. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Princeton.
Counties
- Caldwell County — 3 ZIP codes
Price a mailing to Princeton ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Princeton, KY?
- 42445. A ZIP code is listed for Princeton when at least 10% of its land lies inside Princeton city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Princeton.
- What is the population of Princeton, KY?
- The Census Bureau counts 6,241 residents inside Princeton city limits (ACS 2020–2024). The 1 ZIP code that serve Princeton hold 10,533 residents in all.
- What is the median household income in Princeton, KY?
- $47,411 inside Princeton city limits, per the Census Bureau. Across its ZIP codes the medians run from $55,096 to $55,096.
- How many carrier routes and mailboxes are in Princeton, KY?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 10 carrier routes reaching 4,795 residential and 289 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.