| | | Columbia County | WI | 55021 | | Madison, WI 31540 | Madison-Janesville-Beloit,
WI 357 | Outlying | in metro of > 250k
< 1m | manufacturing-dependent | https://maps.google.com/?q=ColumbiaCounty+WI |
| | | Dane County | WI | 55025 | | Madison, WI 31540 | Madison-Janesville-Beloit,
WI 357 | Central | in metro of > 250k
< 1m | federal/state
government-dependent | https://maps.google.com/?q=DaneCounty+WI |
| | | Green County | WI | 55045 | | Madison, WI 31540 | Madison-Janesville-Beloit,
WI 357 | Outlying | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=GreenCounty+WI |
| | | Iowa County | WI | 55049 | | Madison, WI 31540 | Madison-Janesville-Beloit,
WI 357 | Outlying | in metro of > 250k
< 1m | nonspecialized | https://maps.google.com/?q=IowaCounty+WI |
| | | Rock County | WI | 55105 | | Janesville-Beloit, WI 27500 | Madison-Janesville-Beloit,
WI 357 | Central | in metro of < 250k | nonspecialized | https://maps.google.com/?q=RockCounty+WI |
| | | Sauk County | WI | 55111 | | Baraboo, WI 12660 | Madison-Janesville-Beloit,
WI 357 | Central | not in metro; pop
>20k; metro-adjacent | recreation | https://maps.google.com/?q=SaukCounty+WI |
