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/LARGEST-AREA

Largest ZIP Codes in Kentucky by Land Area

What this measures. Land area of the Census tabulation area, in square miles. Water is excluded. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 42633 Monticello Wayne 419.26 sq mi
2 41179 Vanceburg Lewis 338.98 sq mi
3 40962 Manchester Clay 338.92 sq mi
4 41339 Jackson Breathitt 329.71 sq mi
5 42728 Columbia Adair 320.91 sq mi
6 42717 Burkesville Cumberland 304.68 sq mi
7 42064 Marion Crittenden 294.29 sq mi
8 42261 Morgantown Butler 287.80 sq mi
9 40475 Richmond Madison 287.64 sq mi
10 42211 Cadiz Trigg 284.42 sq mi
11 42101 Bowling Green Warren 281.08 sq mi
12 40769 Williamsburg Whitley 280.78 sq mi
13 42240 Hopkinsville Christian 277.23 sq mi
14 41472 West Liberty Morgan 270.24 sq mi
15 42141 Glasgow Barren 268.39 sq mi
16 40351 Morehead Rowan 268.20 sq mi
17 42718 Campbellsville Taylor 265.54 sq mi
18 41465 Salyersville Magoffin 261.96 sq mi
19 42445 Princeton Caldwell 261.36 sq mi
20 42164 Scottsville Allen 261.28 sq mi
21 40361 Paris Bourbon 257.14 sq mi
22 40447 Mc Kee Jackson 243.42 sq mi
23 41164 Olive Hill Carter 242.22 sq mi
24 40391 Winchester Clark 237.35 sq mi
25 41230 Louisa Lawrence 231.92 sq mi
26 41031 Cynthiana Harrison 225.64 sq mi
27 40330 Harrodsburg Mercer 220.73 sq mi
28 42539 Liberty Casey 219.65 sq mi
29 40359 Owenton Owen 217.84 sq mi
30 40601 Frankfort Franklin 217.63 sq mi
31 42066 Mayfield Graves 217.30 sq mi
32 42134 Franklin Simpson 212.65 sq mi
33 40336 Irvine Estill 209.59 sq mi
34 41301 Campton Wolfe 208.89 sq mi
35 42071 Murray Calloway 208.86 sq mi
36 40741 London Laurel 207.45 sq mi
37 42743 Greensburg Green 205.99 sq mi
38 42276 Russellville Logan 205.08 sq mi
39 42167 Tompkinsville Monroe 204.03 sq mi
40 42025 Benton Marshall 199.70 sq mi
41 42501 Somerset Pulaski 199.66 sq mi
42 42256 Lewisburg Logan 197.25 sq mi
43 41143 Grayson Carter 193.54 sq mi
44 42129 Edmonton Metcalfe 192.73 sq mi
45 41501 Pikeville Pike 192.00 sq mi
46 42420 Henderson Henderson 191.55 sq mi
47 42602 Albany Clinton 188.89 sq mi
48 42754 Leitchfield Grayson 188.87 sq mi
49 40069 Springfield Washington 188.84 sq mi
50 40342 Lawrenceburg Anderson 185.14 sq mi

Showing the top 50 of 780 ZIP codes in Kentucky that have this figure and meet the threshold above. 42633 ranks 1st at 419.26 sq mi, against 185.14 sq mi in 50th place.

Other rankings for Kentucky

Cite this page

zipcodes.pro. “Largest ZIP Codes in Kentucky by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ky/largest-area

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