Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/KY/YOUNGEST

ZIP Codes With the Youngest Population in Kentucky

What this measures. Median age of residents, lowest first. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Median age
1 41663 Tram Floyd 6.8
2 41651 Minnie Floyd 6.9
3 40170 Stephensport Breckinridge 9.3
4 41778 Yerkes Perry 12.6
5 40434 Gray Hawk Jackson 14.2
6 41517 Burdine Letcher 14.8
7 41739 Dwarf Perry 15.5
8 40858 Mozelle Leslie 17.1
9 42047 Hampton Livingston 17.3
10 42265 Olmstead Logan 17.3
11 42715 Breeding Adair 17.3
12 40939 Fourmile Bell 18.0
13 40526 Lexington Fayette 19.2
14 40404 Berea Madison 20.0
15 40280 Louisville Jefferson 20.1
16 42742 Gradyville Adair 20.8
17 40824 Dayhoit Harlan 21.4
18 41735 Delphia Perry 21.6
19 41777 Yeaddiss Leslie 21.6
20 42223 Fort Campbell Montgomery 22.2
21 41567 Stone Pike 23.0
22 40208 Louisville Jefferson 23.3
23 40508 Lexington Fayette 23.5
24 41254 River Johnson 23.5
25 40121 Fort Knox Hardin 24.0
26 42022 Bandana Ballard 24.1
27 42262 Oak Grove Christian 24.9
28 41844 Pippa Passes Knott 25.0
29 41159 Martha Lawrence 25.3
30 40982 Scalf Knox 25.5
31 42332 Cleaton Muhlenberg 25.7
32 41834 Littcarr Knott 25.9
33 41555 Pinsonfork Pike 26.1
34 40355 New Liberty Owen 26.7
35 42286 Trenton Todd 27.4
36 40145 Hudson Breckinridge 27.5
37 40763 Siler Whitley 27.7
38 41540 Lick Creek Pike 28.1
39 42101 Bowling Green Warren 28.1
40 41817 Garner Knott 28.7
41 42451 Reed Henderson 28.7
42 40771 Woodbine Knox 28.8
43 41810 Cromona Letcher 28.9
44 41271 Williamsport Johnson 29.0
45 41267 Warfield Martin 29.1
46 41268 West Van Lear Johnson 29.5
47 41615 Dana Floyd 29.5
48 42124 Beaumont Metcalfe 29.5
49 42455 Sebree Webster 29.5
50 40390 Wilmore Jessamine 29.6

Showing the top 50 of 749 ZIP codes in Kentucky that have this figure . 41663 ranks 1st at 6.8, against 29.6 in 50th place.

Other rankings for Kentucky

Cite this page

zipcodes.pro. “ZIP Codes With the Youngest Population in Kentucky.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ky/youngest

Underlying data is public domain or openly licensed — sources, vintages and licences.