Property Tax Bills Could Surge By 25% Over 5 Years Thu, 02/01/2018 - 12:07pm Heraldgroton Groton spending on schools as a percent of town budget, compared to state average and nearby towns. Infographic by John Ellenberger Full text available to online subscribers only. If you are a current online subscriber, please click here to login. If you are not a current online subscriber, please click here to view our subscription options. Thank you.