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/138

ZIP codes starting with 138

ZIP codes
45
States
NY
Largest city
Vestal, NY
Population
135,853

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 138xx

ZIP codes starting with 138
ZIP City Type Population Median income Median home
13801 Mc Donough , NY Standard 1,545 $69,375 $129,300
13802 Maine , NY Standard 729 — —
13803 Marathon , NY Standard 4,273 $63,713 $140,800
13804 Masonville , NY Standard 244 $45,000 $132,400
13806 Meridale , NY Standard 143 — —
13807 Milford , NY Standard 1,218 $77,083 $166,500
13808 Morris , NY Standard 1,581 $67,071 $167,300
13809 Mount Upton , NY Standard 1,410 $52,167 $206,900
13810 Mount Vision , NY Standard 1,090 $93,819 $228,400
13811 Newark Valley , NY Standard 4,127 $78,418 $131,500
13812 Nichols , NY Standard 2,574 $82,679 $143,800
13813 Nineveh , NY Standard 997 $107,813 $171,000
13814 North Norwich , NY Standard 25 — —
13815 Norwich , NY Standard 12,654 $61,469 $133,900
13820 Oneonta , NY Standard 23,056 $65,953 $182,000
13825 Otego , NY Standard 2,903 $76,875 $194,500
13826 Ouaquaga , NY Standard 141 — $211,500
13827 Owego , NY Standard 11,832 $72,769 $156,400
13830 Oxford , NY Standard 4,597 $62,400 $130,100
13832 Plymouth , NY Standard 448 $78,125 $142,900
13833 Port Crane , NY Standard 4,190 $60,409 $130,000
13834 Portlandville , NY Standard 92 $37,153 —
13835 Richford , NY Standard 1,184 $66,620 $103,000
13838 Sidney , NY Standard 4,251 $53,306 $122,000
13839 Sidney Center , NY Standard 1,360 $54,271 $121,300
13840 Smithboro , NY No street area — — —
13841 Smithville Flats , NY Standard 385 $58,229 $170,800
13842 South Kortright , NY Standard 582 $88,500 $201,000
13843 South New Berlin , NY Standard 2,038 $79,018 $175,500
13844 South Plymouth , NY Standard 555 $61,071 $87,700
13845 Tioga Center , NY No street area — — —
13846 Treadwell , NY Standard 308 $32,857 $222,200
13847 Trout Creek , NY Standard 18 — —
13848 Tunnel , NY No street area — — —
13849 Unadilla , NY Standard 4,427 $57,917 $137,400
13850 Vestal , NY Standard 23,689 $83,403 $194,100
13851 Vestal , NY No street area — — —
13856 Walton , NY Standard 5,881 $48,958 $156,500
13859 Wells Bridge , NY Standard 56 $53,846 —
13860 West Davenport , NY Standard 257 $143,315 $255,500
13861 West Oneonta , NY Standard 462 $57,847 $186,000
13862 Whitney Point , NY Standard 3,440 $63,487 $139,600
13863 Willet , NY Standard 382 $73,333 $111,800
13864 Willseyville , NY Standard 1,099 $60,389 $126,700
13865 Windsor , NY Standard 5,610 $73,623 $177,900

Cite this page

zipcodes.pro. “ZIP codes starting with 138.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/138

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