Marne is an unincorporated community in Wright Township of Ottawa County in the U.S. state of Michigan. Marne is 2.19 sq mi large and it is 12 mi northwest of downtown Grand Rapids. The Marne ZIP code 49435 serves areas in southern and eastern Wright Township, as well as areas of central Tallmadge Township to the south and small areas of Alpine T…Marne is an unincorporated community in Wright Township of Ottawa County in the U.S. state of Michigan. Marne is 2.19 sq mi large and it is 12 mi northwest of downtown Grand Rapids. The Marne ZIP code 49435 serves areas in southern and eastern Wright Township, as well as areas of central Tallmadge Township to the south and small areas of Alpine Township to the east in Kent County.