Groton Tax Rate History
| YEAR | TAX RATE |
| 2025 | $15.25 |
| 2024 | $15.09 |
| 2023 | $15.64 |
| 2022 | $17.19 |
| 2021 | $17.60 |
| 2020 | $17.38 |
| 2019 | $18.11 |
| 2018 | $18.67 |
| 2017 | $18.26 |
| 2016 | $18.78 |
| 2015 | $18.27 |
| 2014 | $17.38 |
| 2013 | $16.85 |
| 2012 | $16.08 |
| 2011 | $16.38 |
| 2010 | $15.78 |
| 2009 | $14.32 |
| 2008 | $13.87 |
| 2007 | $13.77 |
| 2006 | $14.17 |
| 2005 | $13.84 |
| 2004 | $15.44 |
| 2003 | $14.28 |
| 2002 | $14.10 |
| 2001 | $19.33 |
