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/212

ZIP codes starting with 212

ZIP codes
62
States
MD
Largest city
Parkville, MD
Population
1,179,592

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 212xx

ZIP codes starting with 212
ZIP City Type Population Median income Median home
21201 Baltimore , MD Standard 18,307 $45,640 $275,300
21202 Baltimore , MD Standard 20,683 $59,377 $271,800
21203 Baltimore , MD No street area — — —
21204 Towson , MD Standard 19,845 $99,606 $594,800
21205 Baltimore , MD Standard 13,013 $43,176 $96,100
21206 Baltimore , MD Standard 48,902 $64,531 $216,100
21207 Gwynn Oak , MD Standard 47,099 $67,060 $260,300
21208 Pikesville , MD Standard 37,276 $90,131 $337,900
21209 Baltimore , MD Standard 30,126 $91,437 $440,800
21210 Baltimore , MD Standard 14,134 $112,428 $547,300
21211 Baltimore , MD Standard 14,969 $82,828 $284,500
21212 Baltimore , MD Standard 33,974 $96,685 $373,700
21213 Baltimore , MD Standard 28,058 $51,344 $155,000
21214 Baltimore , MD Standard 21,092 $86,366 $259,500
21215 Baltimore , MD Standard 52,229 $51,587 $201,200
21216 Baltimore , MD Standard 29,426 $42,031 $147,800
21217 Baltimore , MD Standard 30,792 $38,409 $180,100
21218 Baltimore , MD Standard 44,014 $62,488 $242,500
21219 Sparrows Point , MD Standard 9,565 $110,438 $384,600
21220 Middle River , MD Standard 42,824 $81,817 $300,100
21221 Essex , MD Standard 43,487 $67,340 $271,500
21222 Dundalk , MD Standard 59,407 $64,141 $215,900
21223 Baltimore , MD Standard 19,572 $45,840 $110,600
21224 Baltimore , MD Standard 47,465 $89,017 $295,200
21225 Brooklyn , MD Standard 34,062 $54,020 $229,000
21226 Curtis Bay , MD Standard 6,674 $82,635 $330,500
21227 Halethorpe , MD Standard 34,907 $85,986 $289,400
21228 Catonsville , MD Standard 50,492 $112,656 $404,700
21229 Baltimore , MD Standard 46,679 $60,047 $201,300
21230 Baltimore , MD Standard 32,977 $91,842 $330,100
21231 Baltimore , MD Standard 14,969 $85,254 $350,100
21233 Baltimore , MD Standard 0 — —
21234 Parkville , MD Standard 66,334 $83,517 $288,100
21235 Baltimore , MD No street area — — —
21236 Nottingham , MD Standard 39,514 $95,149 $327,200
21237 Rosedale , MD Standard 31,425 $91,693 $295,600
21239 Baltimore , MD Standard 27,346 $62,650 $207,400
21240 Baltimore , MD Standard 0 — —
21241 Baltimore , MD No street area — — —
21244 Windsor Mill , MD Standard 38,208 $85,114 $282,600
21250 Baltimore , MD Standard 2,834 — —
21251 Baltimore , MD Standard 191 — —
21252 Towson , MD Standard 4,865 — —
21263 Baltimore , MD No street area — — —
21264 Baltimore , MD No street area — — —
21270 Baltimore , MD No street area — — —
21273 Baltimore , MD No street area — — —
21275 Baltimore , MD No street area — — —
21278 Baltimore , MD No street area — — —
21279 Baltimore , MD No street area — — —
21280 Baltimore , MD No street area — — —
21281 Baltimore , MD No street area — — —
21282 Pikesville , MD No street area — — —
21284 Towson , MD No street area — — —
21285 Towson , MD Standard 3 — —
21286 Towson , MD Standard 21,853 $93,808 $430,100
21287 Baltimore , MD Standard 0 — —
21288 Baltimore , MD No street area — — —
21289 Baltimore , MD No street area — — —
21290 Baltimore , MD No street area — — —
21297 Baltimore , MD No street area — — —
21298 Baltimore , MD No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 212.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/212

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