Merrillville Post Office

303 West 80th Place, Merrillville, IN 46410

219-769-2155

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South Calumet Avenue Post Office

7142 Calumet Avenue, Hammond, IN 46324

219-932-0346

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Glen Park Post Office

320 East 40th Avenue, Gary, IN 46409

219-884-2850

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Miller Post Office

518 South Hancock Street, Gary, IN 46403

219-938-9701

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Shelby Post Office

23323 Shelby Road, Shelby, IN 46377

219-552-0122

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Hessville Post Office

6530 Kennedy Avenue, Hammond, IN 46323

219-844-2416

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Highland Post Office

8500 Kennedy Avenue, Highland, IN 46322

219-838-1248

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Lake Station Post Office

2901 Central Avenue, Lake Station, IN 46405

219-962-1880

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15th Avenue Post Office

1490 Broadway, Gary, IN 46407

219-882-6472

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Lowell Post Office

202 Washington Street, Lowell, IN 46356

219-696-8594

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Saint John Post Office

9200 Thiel Street, St. John, IN 46373

219-365-4254

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Cedar Lake Post Office

9715 West 133rd Avenue, Cedar Lake, IN 46303

219-374-7633

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Hammond Post Office

5530 Sohl Avenue, Hammond, IN 46320

219-932-2757

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Harbor Post Office

3813 Main Street, East Chicago, IN 46312

219-397-2417

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Tolleston Post Office

2407 West 11th Avenue, Gary, IN 46404

219-944-7795

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Crown Point Post Office

128 South East Street, Crown Point, IN 46307

219-663-0805

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Griffith Post Office

900 North Broad Street, Griffith, IN 46319

219-838-4140

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Schererville Post Office

1200 Eagleridge, Schererville, IN 46375

219-322-4601

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Whiting Post Office

1501 119th Street, Whiting, IN 46394

219-659-0593

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Dyer Post Office

2225 Great Lakes Drive, Dyer, IN 46311

219-865-1267

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