This is a list of electoral results for the electoral division of Prosser in Tasmanian Legislative Council elections since its formation in 2017.
| Member | Party | Period | |
|---|---|---|---|
| Jane Howlett | Liberal | 2018–2024 | |
| Kerry Vincent | Liberal | 2024-present | |
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | Kerry Vincent | 8,276 | 38.49 | +12.36 | |
| Labor | Bryan Green | 6,176 | 28.75 | +6.83 | |
| Shooters, Fishers, Farmers | Phillip Bigg | 2,664 | 12.40 | +6.83 | |
| Independent | Pam Sharpe | 2,378 | 11.07 | +11.07 | |
| Independent | Kelly Spaulding | 1,995 | 9.29 | +7.34 | |
| Total formal votes | 21,480 | 96.17 | +1.18 | ||
| Informal votes | 856 | 3.83 | –1.18 | ||
| Turnout | 22,336 | 81.46 | –5.02 | ||
| Registered electors | 27,419 | ||||
| Two-party-preferred result | |||||
| Liberal | Kerry Vincent | 11,186 | 52.93 | +0.27 | |
| Labor | Bryan Green | 9,949 | 47.07 | –0.27 | |
| Liberal hold | Swing | +0.27 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Liberal | Jane Howlett | 5,051 | 26.13 | N/A | |
| Labor | Janet Lambert | 4,237 | 21.92 | N/A | |
| Independent | Steve Mav | 3,798 | 19.65 | N/A | |
| Independent Liberal | Tony Mulder | 1,880 | 9.73 | N/A | |
| Shooters, Fishers, Farmers | Lorraine Bennett | 1,077 | 5.57 | N/A | |
| Independent | Jim Playsted | 969 | 5.01 | N/A | |
| Independent | Scott Wiggins | 573 | 2.96 | N/A | |
| Independent | Jo Bain | 417 | 2.16 | N/A | |
| Independent | Doug Parkinson | 387 | 2.00 | N/A | |
| Independent | Kelly Spaulding | 377 | 1.95 | N/A | |
| Independent | John, The Duke of Avram | 254 | 1.31 | N/A | |
| Independent | Kim Peart | 181 | 0.94 | N/A | |
| Tasmanians 4 Tasmania | Colin Harriss | 126 | 0.65 | N/A | |
| Total formal votes | 19,327 | 94.99 | N/A | ||
| Informal votes | 1,019 | 5.01 | N/A | ||
| Turnout | 20,346 | 86.48 | N/A | ||
| Two-party-preferred result | |||||
| Liberal | Jane Howlett | 8,776 | 52.66 | N/A | |
| Labor | Janet Lambert | 7,889 | 47.34 | N/A | |
| Liberal win | (new seat) | ||||