Mount Vernon, IL Post Offices
Mount Vernon, Illinois has a population of 14,511. According to the 2021 census, the city's 2 post offices serve 6,735 households with a median income of 6,735. The city is located in Jefferson County and has a land area of 37,769,407 and a water area of 205,417.
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Post Office
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Address
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Phone
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Hours
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| Mount Vernon, IL Post Office | 1301 Broadway St, Mount Vernon, Illinois, IL, 62864-9997 |
618-242-0700
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No data available.
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| Mount Vernon, IL Post Office | 301 S 10Th St, Mount Vernon, Illinois, IL, 62864-9995 |
618-242-0640
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Today 08:30:00 - 17:00:00
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