Zip Code 21231. Web zip code 21231 is located in the city of baltimore, maryland and covers 0.867 square miles of land area. Look up a zip code.
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Enter a corporate or residential street address, city, and state to see a specific. Look up a zip code. Web look up a zip code ™. Web zip code 21231 is located in the city of baltimore, maryland and covers 0.867 square miles of land area.
Enter a corporate or residential street address, city, and state to see a specific. Look up a zip code. Web zip code 21231 is located in the city of baltimore, maryland and covers 0.867 square miles of land area. Web look up a zip code ™. Enter a corporate or residential street address, city, and state to see a specific.
