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/508

ZIP codes starting with 508

ZIP codes
28
States
IA
Largest city
Creston, IA
Population
31,347

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 508xx

ZIP codes starting with 508
ZIP City Type Population Median income Median home
50801 Creston , IA Standard 9,034 $58,015 $124,900
50830 Afton , IA Standard 1,846 $61,094 $113,300
50831 Arispe , IA Standard 22 $95,625 —
50833 Bedford , IA Standard 2,077 $61,042 $112,900
50835 Benton , IA Standard 69 $58,125 —
50836 Blockton , IA Standard 304 $81,500 $152,500
50837 Bridgewater , IA Standard 282 $63,000 $116,700
50839 Carbon , IA Standard 46 $48,750 —
50840 Clearfield , IA Standard 552 $63,125 $180,200
50841 Corning , IA Standard 2,340 $66,875 $116,700
50842 Cromwell , IA Standard 99 $59,583 $104,700
50843 Cumberland , IA Standard 540 $56,125 $105,000
50845 Diagonal , IA Standard 831 $66,563 $100,000
50846 Fontanelle , IA Standard 1,276 $74,200 $108,800
50847 Grant , IA Standard 35 $68,125 $40,000
50848 Gravity , IA Standard 256 $68,250 $158,800
50849 Greenfield , IA Standard 2,374 $64,821 $148,600
50851 Lenox , IA Standard 2,193 $70,926 $121,000
50853 Massena , IA Standard 716 $65,208 $169,100
50854 Mount Ayr , IA Standard 2,391 $81,250 $161,800
50857 Nodaway , IA Standard 156 $63,500 $163,300
50858 Orient , IA Standard 848 $71,250 $150,000
50859 Prescott , IA Standard 676 $76,875 $163,500
50860 Redding , IA Standard 94 $45,250 $46,600
50861 Shannon City , IA Standard 311 $63,125 —
50862 Sharpsburg , IA Standard 123 $61,953 $108,800
50863 Tingley , IA Standard 194 $66,125 $93,500
50864 Villisca , IA Standard 1,662 $69,861 $109,900

Cite this page

zipcodes.pro. “ZIP codes starting with 508.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/508

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