| | | Dakota County | NE | 31043 | | Sioux City, IA-NE-SD 43580 | Sioux City-Le Mars,
IA-NE-SD 512 | Central | in metro of < 250k | manufacturing-dependent | https://maps.google.com/?q=DakotaCounty+NE |
| | | Plymouth County | IA | 19149 | | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | Central | not in metro; pop > 5k
< 20k; metro-adjacent | manufacturing-dependent | https://maps.google.com/?q=PlymouthCounty+IA |
| | | Union County | SD | 46127 | | Sioux City, IA-NE-SD 43580 | Sioux City-Le Mars,
IA-NE-SD 512 | Central | in metro of < 250k | nonspecialized | https://maps.google.com/?q=UnionCounty+SD |
| | | Woodbury County | IA | 19193 | | Sioux City, IA-NE-SD 43580 | Sioux City-Le Mars,
IA-NE-SD 512 | Central | in metro of < 250k | nonspecialized | https://maps.google.com/?q=WoodburyCounty+IA |
