| 49 | Marathon | County Supervisory District Boundary changes per resolution #R-48-21 regarding the C of Wausau July 2021 annexation from the T of Wausau. - Jim Y. | 08/03/2021 | 07/27/2021 |  | |
| 48 | St. Croix | Resolution approving alteration of a Supervisory District Boundary for Somerset due to an annexation. | 07/09/2021 | 07/06/2021 | | |
| 47 | St. Croix | Resolution No. 18 (2021) Approving Alteration of Supervisory District Boundary due to Village of Baldwin Annexation | 04/13/2021 | 04/06/2021 | | |
| 46 | St. Croix | Resolution No. 13 (2021 Approves alteration of Supervisory District Boundary due to the Village of Baldwin Annexation of the Sewer Plant Property | 04/13/2021 | 04/06/2021 | | |
| 45 | St. Croix | Resolution No. 19 (2021) approves alteration of the City of Hudson's Supervisory District Boundary du to the Hudson Physicians Annexation
| 05/07/2021 | 05/04/2021 | | |
| 44 | St. Croix | Resolution No. 19 (2021) approves alteration of the City of Hudson's Supervisory District Boundary du to the Hudson Physicians Annexation
| 05/07/2021 | 05/04/2021 | | |
| 43 | Marathon | Resolution #R-21-21; CHANGES IN SUPERVISORY DISTRICT BOUNDARIES RESULTING FROM VILLAGE OF MARATHON CITY ANNEXATION | 04/02/2021 | 03/23/2021 | | |
| 42 | Barron | Resolution to Amend Supervisory Districts due to an Annexation to the City of Rice Lake | 12/21/2020 | 12/03/2020 | | |
| 41 | Marathon | #R-63-20 changes the Supervisory District boundaries due to an annexation to the Village of Edgar | 11/20/2020 | 11/10/2020 | | |
| 40 | Barron | Per Resolution # 2020-23, the Barron County Board of Supervisors amended the County Supervisory District Plan adopted by Resolutions 2011-15 and 2011-31, as amended by Resolutions 2013-41, 2013-42, 2014-45, 2018-25, 2019-3, 2019-21, and 2020-4 to transfer Parcel #212-8090-02-000 from Supervisory District 26 to Supervisory District 27 in the City of Cumberland. | 10/21/2020 | 09/22/2020 | | |
| 39 | Barron | Per Resolution # 2020-5, the Barron County Board of Supervisors amended the County Supervisory District Plan adopted by Resolutions 2011-15 and 2011-31, as amended by Resolutions 2013-41, 2013-42, 2014-45, 2018-25, 2019-3 and 2019-21 to transfer Parcel #212-8200-06-002 from Supervisory District 29 to Supervisory District 28 in the City of Cumberland. | 10/21/2020 | 01/13/2020 | | |
| 38 | Barron | Per Resolution # 2020-4, the Barron County Board of Supervisors amended the County Supervisory District Plan adopted by Resolutions 2011-15 and 2011-31, as amended by Resolutions 2013-41, 2013-42, 2014-45, 2018-25, 2019-3, and 2019-21 to transfer Parcels #036-2500-26-000 and 036-2500-27-000 from Supervisory District 1 to Supervisory District 4 in the Town of Prairie Lake. | 10/21/2020 | 01/13/2020 | | |
| 37 | Barron | Per Resolution # 2019-21, the Barron County Board of Supervisors amended the County Supervisory District Plan adopted by Resolutions 2011-15 and 2011-31, as amended by Resolutions 2013-41, 2013-42, 2014-45, 2018-25, and 2019-3 to transfer Parcels #026-3100-47-000, 026-3100-48-000, 026-3100-49-000, and 026-3100-50-000 from Supervisory District 28 to Supervisory District 29 in the Town of Lakeland. | 10/21/2020 | 07/15/2019 | | |
| 36 | Barron | Per Resolution # 2019-3, the Barron County Board of Supervisors amended the County Supervisory District Plan adopted by Resolutions 2011-15 and 2011-31, as amended by Resolutions 2013-41, 2013-42, 2014-45 and 2018-25 to transfer Parcels #016-0200-04-001, 016-0200-02-000, 016-0200-03-000, 016-0100-14-000, and 016-0200-06-000 from Supervisory District 27 to Supervisory District 28 and Parcel #030-3500-14-000 and 030-3500-60-000 from Supervisory District 29 to Supervisory District 28 in the City of Cumberland. | 10/21/2020 | 02/18/2019 | | |
| 35 | Barron | Per Resolution # 2018-25, the Barron County Board of Supervisors amended the County Supervisory District Plan adopted by Resolutions 2011-15 and 2011-31, as amended by Resolutions 2013-41, 2013-42 and 2014-45 to transfer Parcel #016-0200-31-000 from Supervisory District 27 to Supervisory District 28 and Parcel #018-1800-05-010/018-1800-02-000 from Supervisory District 26 to 27 in the City of Cumberland. | 10/21/2020 | 08/20/2018 | | |