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/210

ZIP codes starting with 210

ZIP codes
58
States
MD
Largest city
Glen Burnie, MD
Population
809,560

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 210xx

ZIP codes starting with 210
ZIP City Type Population Median income Median home
21001 Aberdeen , MD Standard 27,168 $83,238 $285,800
21005 Aberdeen Proving Ground , MD Standard 2,202 $125,208 —
21009 Abingdon , MD Standard 33,679 $121,660 $357,100
21010 Gunpowder , MD Standard 239 $99,410 —
21012 Arnold , MD Standard 22,570 $139,432 $563,800
21013 Baldwin , MD Standard 5,610 $171,354 $572,100
21014 Bel Air , MD Standard 38,707 $116,970 $429,900
21015 Bel Air , MD Standard 30,013 $137,281 $443,400
21017 Belcamp , MD Standard 6,648 $106,831 $258,300
21018 Benson , MD No street area — — —
21020 Boring , MD No street area — — —
21022 Brooklandville , MD No street area — — —
21023 Butler , MD Standard 66 $84,474 $881,600
21027 Chase , MD No street area — — —
21028 Churchville , MD Standard 3,103 $137,586 $512,400
21029 Clarksville , MD Standard 13,607 $243,542 $912,100
21030 Cockeysville , MD Standard 25,827 $89,015 $450,700
21031 Hunt Valley , MD Standard 26 — —
21032 Crownsville , MD Standard 8,850 $168,653 $682,100
21034 Darlington , MD Standard 2,846 $78,047 $401,500
21035 Davidsonville , MD Standard 7,879 $188,347 $831,500
21036 Dayton , MD Standard 2,569 $218,036 $881,300
21037 Edgewater , MD Standard 20,854 $145,787 $560,300
21040 Edgewood , MD Standard 24,960 $81,704 $238,000
21041 Ellicott City , MD No street area — — —
21042 Ellicott City , MD Standard 43,327 $190,061 $706,400
21043 Ellicott City , MD Standard 48,525 $148,125 $620,900
21044 Columbia , MD Standard 44,114 $135,057 $566,500
21045 Columbia , MD Standard 40,034 $118,563 $453,700
21046 Columbia , MD Standard 15,608 $127,813 $479,500
21047 Fallston , MD Standard 13,852 $157,500 $552,500
21048 Finksburg , MD Standard 10,481 $131,921 $459,000
21050 Forest Hill , MD Standard 17,466 $125,208 $456,800
21051 Fork , MD Standard 172 $232,721 $698,500
21052 Fort Howard , MD Standard 409 $77,300 $293,200
21053 Freeland , MD Standard 2,929 $89,497 $408,300
21054 Gambrills , MD Standard 16,386 $163,825 $611,000
21056 Gibson Island , MD Standard 291 $250,000+ $2,000,000+
21057 Glen Arm , MD Standard 4,386 $145,924 $623,200
21060 Glen Burnie , MD Standard 39,730 $104,715 $377,100
21061 Glen Burnie , MD Standard 57,230 $87,751 $339,100
21062 Glen Burnie , MD No street area — — —
21065 Hunt Valley , MD No street area — — —
21071 Glyndon , MD Standard 404 $213,500 $450,500
21074 Hampstead , MD Standard 14,777 $108,536 $378,100
21075 Elkridge , MD Standard 37,363 $135,303 $455,300
21076 Hanover , MD Standard 24,268 $146,869 $513,300
21077 Harmans , MD Standard 63 — —
21078 Havre De Grace , MD Standard 20,030 $106,667 $385,600
21082 Hydes , MD Standard 626 $145,571 $485,500
21084 Jarrettsville , MD Standard 7,070 $121,509 $448,400
21085 Joppa , MD Standard 17,307 $113,714 $348,600
21087 Kingsville , MD Standard 5,537 $129,188 $534,300
21088 Lineboro , MD No street area — — —
21090 Linthicum Heights , MD Standard 10,652 $138,119 $410,400
21092 Long Green , MD No street area — — —
21093 Lutherville Timonium , MD Standard 39,100 $125,528 $477,700
21094 Lutherville Timonium , MD No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 210.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/210

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