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 — PREFIX/403

ZIP codes starting with 403

ZIP codes
47
States
KY
Largest city
Georgetown, KY
Population
363,538

The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.

Every ZIP code in 403xx

ZIP codes starting with 403
ZIP City Type Population Median income Median home
40310 Burgin , KY Standard 471 $56,477 $126,600
40311 Carlisle , KY Standard 7,672 $61,348 $130,000
40312 Clay City , KY Standard 5,994 $42,564 $144,600
40313 Clearfield , KY Standard 2,832 $65,409 $116,100
40316 Denniston , KY Standard 389 $21,618 $59,100
40317 Elliottville , KY No street area — — —
40319 Farmers , KY No street area — — —
40322 Frenchburg , KY Standard 3,238 $52,794 $139,000
40324 Georgetown , KY Standard 53,406 $85,110 $289,100
40328 Gravel Switch , KY Standard 963 $44,770 $95,600
40330 Harrodsburg , KY Standard 21,250 $63,992 $199,500
40334 Hope , KY Standard 0 — —
40336 Irvine , KY Standard 12,718 $46,367 $121,600
40337 Jeffersonville , KY Standard 5,244 $54,128 $152,700
40339 Keene , KY Standard 346 $130,625 $115,300
40340 Nicholasville , KY No street area — — —
40342 Lawrenceburg , KY Standard 23,963 $74,408 $224,500
40346 Means , KY Standard 819 $31,023 —
40347 Midway , KY Standard 3,960 $85,270 $354,000
40348 Millersburg , KY Standard 625 $41,979 $104,700
40350 Moorefield , KY Standard 73 — —
40351 Morehead , KY Standard 22,322 $51,835 $167,300
40353 Mount Sterling , KY Standard 22,725 $57,329 $184,000
40355 New Liberty , KY Standard 514 — $232,500
40356 Nicholasville , KY Standard 45,849 $74,495 $268,100
40357 North Middletown , KY Standard 81 $11,750 $95,000
40358 Olympia , KY Standard 1,012 $92,143 $220,000
40359 Owenton , KY Standard 6,989 $62,542 $169,700
40360 Owingsville , KY Standard 7,595 $55,193 $126,300
40361 Paris , KY Standard 18,361 $63,333 $233,000
40362 Paris , KY No street area — — —
40363 Perry Park , KY Standard 9 — —
40366 Preston , KY No street area — — —
40370 Sadieville , KY Standard 2,836 $94,234 $284,200
40371 Salt Lick , KY Standard 2,525 $62,917 $148,100
40372 Salvisa , KY Standard 2,090 $74,205 $229,800
40374 Sharpsburg , KY Standard 2,562 $43,607 $115,100
40376 Slade , KY Standard 18 — —
40379 Stamping Ground , KY Standard 3,788 $62,228 $240,900
40380 Stanton , KY Standard 7,100 $37,734 $135,100
40383 Versailles , KY Standard 24,793 $85,213 $312,500
40384 Versailles , KY No street area — — —
40385 Waco , KY Standard 2,233 $63,103 $194,700
40387 Wellington , KY Standard 1,948 $45,391 $123,300
40390 Wilmore , KY Standard 7,429 $73,767 $245,900
40391 Winchester , KY Standard 36,796 $64,144 $204,900
40392 Winchester , KY No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 403.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/403

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