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Kentucky ZIP codes

Kentucky has 946 ZIP codes (40003–42788) across 785 cities and towns and 120 counties.

ZIP codes
946
With delivery area
780
Population in ZIPs
4,542,460
Cities & towns
785
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Richest ZIP codes in Kentucky Most expensive ZIP codes

Zoom in to see ZIP code boundaries. Click a dot to open a ZIP code, or anywhere else to see which ZIP it's in.

Largest cities in Kentucky

Kentucky ZIP codes by county

Most populated Kentucky ZIP codes

  1. 40475 Richmond – 65,961
  2. 42101 Bowling Green – 65,421
  3. 41042 Florence – 57,634
  4. 42701 Elizabethtown – 53,987
  5. 40324 Georgetown – 53,406
  6. 40601 Frankfort – 51,893
  7. 40509 Lexington – 47,036
  8. 40356 Nicholasville – 45,849
  9. 42301 Owensboro – 45,445
  10. 40214 Louisville – 45,405

All Kentucky cities and towns

Frequently asked questions

How many ZIP codes are in Kentucky?

Kentucky has 946 ZIP codes: 780 with a delivery area and 166 PO Box or single-organization ZIP codes.

What ZIP codes does Kentucky use?

Kentucky ZIP codes run from 40003 to 42788.

Which Kentucky ZIP code has the most people?

ZIP code 40475 in Richmond has the largest population, about 65,961 residents (ACS 2020–2024).