Columbia County property records for 85 addresses on Prospect Ave, Portage, WI · Last verified August 2026
| Properties | 99 |
|---|---|
| Median Sale Price | $203,500 |
| Deeds and Mortgages on File | 90 |
| Owner Occupied | 89% |
| Median Annual Tax Bill | $4,099 |
| Median Year Built | 1935 |
| Median Ownership Tenure | 6 years |
Owner names and prior sale amounts shown locked below are available instantly with a free trial.
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $50,000Jan 2023 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.33 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $55,000Jun 2016 | $6,2792025 | Owner on Record | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,0962025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,4562025 | Owner on Record | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $6,2492025 | Owner on Record Owner Occupied | AssessorUpdated Aug 2026 |
3 bd · 1 ba · built 1910 · 0.23 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,9412025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $155,000Jul 2014 | $6,2452025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.148 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,6252025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $199,000Nov 2020 | $5,3362025 | Amount on Record Dec 2018 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.173 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $123,000Feb 2016 | $4,6442025 | —Nov 2014 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $245,000Oct 2021 | $5,9422025 | Amount on Record Apr 2011 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.3 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $265,000Jun 2019 | $8,2712025 | Amount on Record Feb 2014 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.317 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $240,000Nov 2025 | $6,2302025 | Amount on Record Oct 2017 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.155 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $125,000Mar 2021 | $3,0582025 | Amount on Record Oct 2015 | Owner on Record | Assessor + 2 DocumentsUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,6702025 | 2 Owners on Record Owner Occupied | AssessorUpdated Jun 2026 |
3 bd · 1 ba · built 1915 · 0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $205,000Dec 2023 | $4,0152025 | Amount on Record Dec 2021 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.144 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $203,500May 2021 | $4,7932025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 1 ba · built 1870 · 0.148 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $84,000Feb 2012 | $3,6892025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.121 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,5652025 | Owner on Record | AssessorUpdated Feb 2026 |
0.13 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $265,000Jan 2025 | $5,7662025 | Amount on Record Jun 2025 | Owner on Record Owner Occupied | Assessor + 5 DocumentsUpdated Feb 2026 |
3 bd · 2 ba · built 1915 · 0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $251,500May 2021 | $6,1112025 | Amount on Record Jul 2019 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.198 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $280,000Jan 2024 | $5,3132025 | Amount on Record Feb 2022 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Feb 2026 |
0.148 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $75,000Sep 2013 | $2,8562025 | Owner on Record Owner Occupied | AssessorUpdated Jun 2026 |
0.187 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $8,8172025 | 2 Owners on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $59,700Aug 2010 | $3,0762025 | Owner on Record | Assessor + 2 DocumentsUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,4812025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $284,900Mar 2023 | $5,6852025 | Amount on Record Jun 2019 | 2 Owners on Record Owner Occupied | Assessor + 4 DocumentsUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $170,000Dec 2022 | $3,5392025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.16 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $103,500Nov 2018 | $3,0002025 | Amount on Record Apr 2011 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $210,000Feb 2022 | $4,4352025 | Amount on Record Oct 2014 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,5772025 | Owner on Record | AssessorUpdated Aug 2026 |
0.187 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $105,000Jul 2012 | $3,9032025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.237 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,4042025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.401 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $7,3212025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.317 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $224,000Jan 2019 | $7,6612025 | Amount on Record Aug 2013 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.317 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,5042025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.164 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $221,000May 2021 | $5,4652025 | Amount on Record Jan 2018 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
0.194 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $1,8152025 | 2 Owners on Record | AssessorUpdated Feb 2026 |
0.178 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,9242025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.123 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,8952025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,8982025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 1 ba · built 1870 · 0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $169,000Sep 2021 | $4,0152025 | Amount on Record Oct 2013 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $175,000Oct 2021 | $4,1682025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
3 bd · 1 ba · built 1935 · 0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,7382025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.317 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $145,000Apr 2020 | $4,0822025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $257,000Nov 2025 | $4,8162025 | Amount on Record Jun 2022 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
3 bd · 1 ba · built 1922 · 0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $126,000Nov 2017 | $3,7122025 | Amount on Record Aug 2012 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Jun 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,4442025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $192,000Feb 2024 | $4,1842025 | Amount on Record Aug 2015 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
3 bd · 1 ba · built 1910 · 0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| —Apr 2024 | $4,0512025 | Amount on Record Jun 2015 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,7652025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $110,000May 2014 | $4,1282025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,7232025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $135,000Jun 2018 | $4,1372025 | Owner on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.157 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,9192025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
5 bd · 1 ba · built 1923 · 0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $98,400Feb 2015 | $3,9802025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $262,000Aug 2023 | $5,2062025 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $162,000Aug 2020 | $3,9972025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
3 bd · 1 ba · built 1973 · 0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,6522025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
2 bd · 1 ba · built 1960 · 0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $215,000Jun 2024 | $3,9172025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $175,000Apr 2022 | $3,6502025 | Amount on Record Jan 2014 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
8 units
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $241,500Jun 2025 | $4,0992025 | $165,0008 units |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $217,000Sep 2024 | $3,2822025 | Amount on Record Aug 2021 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4382025 | Owner on Record | AssessorUpdated Feb 2026 |
3 bd · 1 ba · built 1939 · 0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,2782025 | Owner on Record Owner Occupied | AssessorUpdated Jun 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,3002025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $99,000May 2013 | $4,1182025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $22025 | Owner on Record | AssessorUpdated Feb 2026 |
0.21 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $110,000Oct 2012 | $4,2262025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $22025 | Owner on Record | AssessorUpdated Feb 2026 |
0.214 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,9582025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,0172025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.171 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $4,7172025 | Amount on Record Jul 2022 | Owner on Record Owner Occupied | Assessor + 4 DocumentsUpdated Feb 2026 |
0.169 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $22025 | Owner on Record | AssessorUpdated Feb 2026 |
8 units · Built 2007
| Last Sale | Median Tax Bill | Median Sale | ||
|---|---|---|---|---|
| $243,000Aug 2025 | $4,0992025 | $129,0008 units |
0.167 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $281,000Sep 2023 | $5,6032025 | Amount on Record Jul 2012 | Owner on Record Owner Occupied | Assessor + 3 DocumentsUpdated Feb 2026 |
0.303 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,3892025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,2402025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $3,8692025 | Owner on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.189 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $5,0202025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.18 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $11,200Apr 2023 | $2882025 | 2 Owners on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.344 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $2,6412025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.316 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $134,000Oct 2011 | $5,3442025 | 2 Owners on Record Owner Occupied | AssessorUpdated Feb 2026 |
0.121 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $119,900Sep 2020 | $3,3012025 | Owner on Record Owner Occupied | Assessor + 1 DocumentUpdated Feb 2026 |
0.357 acres
| Last Sale | Tax Bill | Prior Sale | Owner | Records |
|---|---|---|---|---|
| $194,000May 2022 | $4,3982025 | —Jun 2021 | 2 Owners on Record Owner Occupied | Assessor + 2 DocumentsUpdated Feb 2026 |