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/630

ZIP codes starting with 630

ZIP codes
65
States
MO
Largest city
Ballwin, MO
Population
740,227

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 630xx

ZIP codes starting with 630
ZIP City Type Population Median income Median home
63005 Chesterfield , MO Standard 19,779 $198,469 $701,600
63006 Chesterfield , MO No street area — — —
63010 Arnold , MO Standard 34,478 $79,784 $224,300
63011 Ballwin , MO Standard 35,920 $124,454 $400,900
63012 Barnhart , MO Standard 10,314 $96,099 $250,800
63013 Beaufort , MO Standard 1,136 $99,337 $290,700
63014 Berger , MO Standard 426 $61,842 $148,600
63015 Catawissa , MO Standard 1,939 $88,750 $237,000
63016 Cedar Hill , MO Standard 6,459 $86,359 $229,900
63017 Chesterfield , MO Standard 43,243 $127,095 $466,100
63019 Crystal City , MO Standard 4,489 $72,569 $186,000
63020 De Soto , MO Standard 20,166 $70,824 $185,900
63021 Ballwin , MO Standard 55,666 $120,177 $349,500
63022 Ballwin , MO No street area — — —
63023 Dittmer , MO Standard 5,002 $79,583 $212,800
63024 Ballwin , MO No street area — — —
63025 Eureka , MO Standard 19,508 $125,676 $391,500
63026 Fenton , MO Standard 45,354 $97,553 $294,400
63028 Festus , MO Standard 28,457 $79,737 $240,000
63030 Fletcher , MO Standard 557 $91,042 $183,300
63031 Florissant , MO Standard 50,196 $70,811 $154,300
63032 Florissant , MO No street area — — —
63033 Florissant , MO Standard 43,056 $66,776 $173,700
63034 Florissant , MO Standard 18,908 $103,905 $239,300
63036 French Village , MO Standard 1,001 $58,083 $200,300
63037 Gerald , MO Standard 2,970 $50,203 $177,500
63038 Glencoe , MO Standard 7,107 $186,450 $580,800
63039 Gray Summit , MO Standard 986 $70,329 $183,000
63040 Grover , MO Standard 8,526 $133,220 $426,600
63041 Grubville , MO Standard 309 $68,750 $396,900
63042 Hazelwood , MO Standard 17,813 $49,453 $149,400
63043 Maryland Heights , MO Standard 21,924 $91,509 $227,600
63044 Bridgeton , MO Standard 10,324 $77,819 $238,100
63045 Earth City , MO Standard 0 — —
63047 Hematite , MO Standard 0 — —
63048 Herculaneum , MO Standard 4,228 $92,109 $231,600
63049 High Ridge , MO Standard 16,592 $92,333 $224,700
63050 Hillsboro , MO Standard 18,744 $87,371 $288,200
63051 House Springs , MO Standard 13,436 $79,940 $201,700
63052 Imperial , MO Standard 28,712 $92,922 $285,400
63053 Kimmswick , MO Standard 56 $61,250 $221,300
63055 Labadie , MO Standard 1,693 $79,125 $278,600
63056 Leslie , MO Standard 1,896 $75,517 $211,300
63057 Liguori , MO No street area — — —
63060 Lonedell , MO Standard 2,192 $54,926 $179,500
63061 Luebbering , MO Standard 216 $99,405 $255,000
63065 Mapaville , MO No street area — — —
63066 Morse Mill , MO No street area — — —
63068 New Haven , MO Standard 6,202 $79,632 $226,300
63069 Pacific , MO Standard 15,697 $78,185 $292,100
63070 Pevely , MO Standard 8,428 $65,211 $210,500
63071 Richwoods , MO Standard 1,113 $44,853 $122,900
63072 Robertsville , MO Standard 3,469 $80,333 $240,700
63073 Saint Albans , MO Standard 803 $250,000+ $811,100
63074 Saint Ann , MO Standard 15,793 $51,610 $132,700
63077 Saint Clair , MO Standard 11,391 $56,281 $178,200
63079 Stanton , MO Standard 60 — —
63080 Sullivan , MO Standard 13,124 $66,541 $182,700
63084 Union , MO Standard 20,708 $75,992 $226,900
63087 Valles Mines , MO Standard 1,066 $60,313 $217,200
63088 Valley Park , MO Standard 8,226 $65,769 $247,100
63089 Villa Ridge , MO Standard 5,662 $72,731 $212,300
63090 Washington , MO Standard 23,258 $85,025 $273,600
63091 Rosebud , MO Standard 1,449 $80,000 $215,700
63099 Fenton , MO No street area — — —

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zipcodes.pro. “ZIP codes starting with 630.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/630

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