Union County Post Offices


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104 N Main St
Brownsville, Indiana 47325

29 E Union St
Liberty, Indiana 47353

Union County

There are 2 US Post Offices in Union County serving a total of 6,546 residents equating to 3,273 residents per post office. It's estimated that approximately 10,448 packages are handled across the 2 county post offices annually. Union County is a county located in the U.S. state of Indiana. As of 2010, the population was 7,516. The county seat is Liberty."


Post Offices by ZIP Code

  • 47325 - Brownsville IN
  • 47353 - Liberty IN