Answer: Arborvitae is a good choice for your region. You might also consider Columnar Blue Spruce (Picea p. 'Glauca Fastigiata') which grows 8' tall and 3' wide and has beautiful foliage color, or Juniperus chinensis 'Iowa' (Chinese Juniper). All are evergreen and dense growing to provide the privacy screening you're looking for. Best wishes with your landscape.
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