Home/PostalMag/Post Office Photos/Menan, Idaho Post Office 83434 Post Office Photos Menan, Idaho Post Office 83434 PostalMag · Sunday, April 24, 2022 The Menan, Idaho Post Office serves ZIP Code 83434. Photo by Tom Lewis. Menan Post Office 3509 E Menan Lorenzo Hwy Menan, ID 83434 Location at Google Maps