| | Cass County | NE | 31025 | | Omaha, NE-IA 36540 | Omaha-Fremont, NE-IA 420 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=CassCounty+NE |
| | Dakota County | NE | 31043 | | Sioux City, IA-NE-SD 43580 | Sioux City-Le Mars,
IA-NE-SD 512 | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=DakotaCounty+NE |
| | Dixon County | NE | 31051 | | | | | metro county (urban) | farm-dependent | https://maps.google.com/?q=DixonCounty+NE |
| | Douglas County | NE | 31055 | | Omaha, NE-IA 36540 | Omaha-Fremont, NE-IA 420 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=DouglasCounty+NE |
| | Hall County | NE | 31079 | | Grand Island, NE 24260 | | Central | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=HallCounty+NE |
| | Hamilton County | NE | 31081 | | | | | metro county (urban) | farm-dependent | https://maps.google.com/?q=HamiltonCounty+NE |
| | Howard County | NE | 31093 | | Grand Island, NE 24260 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=HowardCounty+NE |
| | Lancaster County | NE | 31109 | | Lincoln, NE 30700 | Lincoln-Beatrice, NE 339 | Central | metro county (urban) | federal/state
government-dependent | https://maps.google.com/?q=LancasterCounty+NE |
| | Merrick County | NE | 31121 | | Grand Island, NE 24260 | | Outlying | metro county (urban) | farm-dependent | https://maps.google.com/?q=MerrickCounty+NE |
| | Sarpy County | NE | 31153 | | Omaha, NE-IA 36540 | Omaha-Fremont, NE-IA 420 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=SarpyCounty+NE |