FIPS Code | State | County name | 2003 urban influence code | Description | 2000 population |
|---|
| 31001 | NE | Adams County | 8 | Micropolitan not adjacent to a metro area | 31,151 |
| 31003 | NE | Antelope County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 7,452 |
| 31005 | NE | Arthur County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 444 |
| 31007 | NE | Banner County | 8 | Micropolitan not adjacent to a metro area | 819 |
| 31009 | NE | Blaine County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 583 |
| 31011 | NE | Boone County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 6,259 |
| 31013 | NE | Box Butte County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 12,158 |
| 31015 | NE | Boyd County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 2,438 |
| 31017 | NE | Brown County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 3,525 |
| 31019 | NE | Buffalo County | 8 | Micropolitan not adjacent to a metro area | 42,259 |
| 31021 | NE | Burt County | 7 | Noncore adjacent to a small metro and does not contain a town of at least 2,500 residents | 7,791 |
| 31023 | NE | Butler County | 6 | Noncore adjacent to a small metro with town of at least 2,500 residents | 8,767 |
| 31025 | NE | Cass County | 2 | Small-in a metro area with fewer than 1 million residents | 24,334 |
| 31027 | NE | Cedar County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 9,615 |
| 31029 | NE | Chase County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 4,068 |
| 31031 | NE | Cherry County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 6,148 |
| 31033 | NE | Cheyenne County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 9,830 |
| 31035 | NE | Clay County | 8 | Micropolitan not adjacent to a metro area | 7,039 |
| 31037 | NE | Colfax County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 10,441 |
| 31039 | NE | Cuming County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 10,203 |
| 31041 | NE | Custer County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 11,793 |
| 31043 | NE | Dakota County | 2 | Small-in a metro area with fewer than 1 million residents | 20,253 |
| 31045 | NE | Dawes County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 9,060 |
| 31047 | NE | Dawson County | 8 | Micropolitan not adjacent to a metro area | 24,365 |
| 31049 | NE | Deuel County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 2,098 |
| 31051 | NE | Dixon County | 2 | Small-in a metro area with fewer than 1 million residents | 6,339 |
| 31053 | NE | Dodge County | 5 | Micropolitan adjacent to a small metro area | 36,160 |
| 31055 | NE | Douglas County | 2 | Small-in a metro area with fewer than 1 million residents | 463,585 |
| 31057 | NE | Dundy County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 2,292 |
| 31059 | NE | Fillmore County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 6,634 |
| 31061 | NE | Franklin County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 3,574 |
| 31063 | NE | Frontier County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 3,099 |
| 31065 | NE | Furnas County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 5,324 |
| 31067 | NE | Gage County | 5 | Micropolitan adjacent to a small metro area | 22,993 |
| 31069 | NE | Garden County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 2,292 |
| 31071 | NE | Garfield County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 1,902 |
| 31073 | NE | Gosper County | 8 | Micropolitan not adjacent to a metro area | 2,143 |
| 31075 | NE | Grant County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 747 |
| 31077 | NE | Greeley County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 2,714 |
| 31079 | NE | Hall County | 8 | Micropolitan not adjacent to a metro area | 53,534 |
| 31081 | NE | Hamilton County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 9,403 |
| 31083 | NE | Harlan County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 3,786 |
| 31085 | NE | Hayes County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 1,068 |
| 31087 | NE | Hitchcock County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 3,111 |
| 31089 | NE | Holt County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 11,551 |
| 31091 | NE | Hooker County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 783 |
| 31093 | NE | Howard County | 8 | Micropolitan not adjacent to a metro area | 6,567 |
| 31095 | NE | Jefferson County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 8,333 |
| 31097 | NE | Johnson County | 7 | Noncore adjacent to a small metro and does not contain a town of at least 2,500 residents | 4,488 |
| 31099 | NE | Kearney County | 8 | Micropolitan not adjacent to a metro area | 6,882 |
| 31101 | NE | Keith County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 8,875 |
| 31103 | NE | Keya Paha County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 983 |
| 31105 | NE | Kimball County | 6 | Noncore adjacent to a small metro with town of at least 2,500 residents | 4,089 |
| 31107 | NE | Knox County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 9,374 |
| 31109 | NE | Lancaster County | 2 | Small-in a metro area with fewer than 1 million residents | 250,291 |
| 31111 | NE | Lincoln County | 8 | Micropolitan not adjacent to a metro area | 34,632 |
| 31113 | NE | Logan County | 8 | Micropolitan not adjacent to a metro area | 774 |
| 31115 | NE | Loup County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 712 |
| 31117 | NE | McPherson County | 8 | Micropolitan not adjacent to a metro area | 533 |
| 31119 | NE | Madison County | 8 | Micropolitan not adjacent to a metro area | 35,226 |
| 31121 | NE | Merrick County | 8 | Micropolitan not adjacent to a metro area | 8,204 |
| 31123 | NE | Morrill County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 5,440 |
| 31125 | NE | Nance County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 4,038 |
| 31127 | NE | Nemaha County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 7,576 |
| 31129 | NE | Nuckolls County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 5,057 |
| 31131 | NE | Otoe County | 6 | Noncore adjacent to a small metro with town of at least 2,500 residents | 15,396 |
| 31133 | NE | Pawnee County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 3,087 |
| 31135 | NE | Perkins County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 3,200 |
| 31137 | NE | Phelps County | 9 | Noncore adjacent to micro area and contains a town of 2,500- 9,999 residents | 9,747 |
| 31139 | NE | Pierce County | 8 | Micropolitan not adjacent to a metro area | 7,857 |
| 31141 | NE | Platte County | 8 | Micropolitan not adjacent to a metro area | 31,662 |
| 31143 | NE | Polk County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 5,639 |
| 31145 | NE | Red Willow County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 11,448 |
| 31147 | NE | Richardson County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 9,531 |
| 31149 | NE | Rock County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 1,756 |
| 31151 | NE | Saline County | 6 | Noncore adjacent to a small metro with town of at least 2,500 residents | 13,843 |
| 31153 | NE | Sarpy County | 2 | Small-in a metro area with fewer than 1 million residents | 122,595 |
| 31155 | NE | Saunders County | 2 | Small-in a metro area with fewer than 1 million residents | 19,830 |
| 31157 | NE | Scotts Bluff County | 8 | Micropolitan not adjacent to a metro area | 36,951 |
| 31159 | NE | Seward County | 2 | Small-in a metro area with fewer than 1 million residents | 16,496 |
| 31161 | NE | Sheridan County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 6,198 |
| 31163 | NE | Sherman County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 3,318 |
| 31165 | NE | Sioux County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 1,475 |
| 31167 | NE | Stanton County | 8 | Micropolitan not adjacent to a metro area | 6,455 |
| 31169 | NE | Thayer County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 6,055 |
| 31171 | NE | Thomas County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 729 |
| 31173 | NE | Thurston County | 7 | Noncore adjacent to a small metro and does not contain a town of at least 2,500 residents | 7,171 |
| 31175 | NE | Valley County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 4,647 |
| 31177 | NE | Washington County | 2 | Small-in a metro area with fewer than 1 million residents | 18,780 |
| 31179 | NE | Wayne County | 6 | Noncore adjacent to a small metro with town of at least 2,500 residents | 9,851 |
| 31181 | NE | Webster County | 10 | Noncore adjacent to micro area and does not contain a town of at least 2,500 residents | 4,061 |
| 31183 | NE | Wheeler County | 12 | Noncore not adjacent to a metro/micro area and does not contain a town of at least 2,500 residents | 886 |
| 31185 | NE | York County | 11 | Noncore not adjacent to a metro/micro area and contains a town of 2,500 or more residents | 14,598 |