There are 16 zip codes in St. Tammany Parish, Louisiana. The most populated is 70433, located in Covington. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7043340,598Covington
7045839,555Slidell
7046132,229Slidell
7044826,364Mandeville
7047123,425Mandeville
7046021,843Slidell
7043520,098Covington
7044717,400Madisonville
7045213,281Pearl River
704459,391Lacombe
704208,391Abita Springs
704377,402Folsom
704315,378Bush
70464184Talisheek
70457169Saint Benedict
70463104Sun

Zip Codes in St. Tammany Parish, Louisiana by Population (2024)