Franklin County Census Bureau Says Franklin County's Population Is The Highest In The State By Jim Letizia • Mar 23, 2017 The U.S. Census Bureau says Franklin County is now Ohio's most populous county. RWJF Again Ranks Delaware As State's Healthiest County By Jim Letizia • Mar 17, 2016 The latest report by the non-profit Robert Wood Johnson foundation shows that for the second consecutive year, Delaware County is the healthiest county in Ohio. County Administrator To Resign By Jim Letizia • Jul 18, 2014 Franklin County Franklin County Administrator Don Brown says he will resign on October 31st. Franklin County Fastest Growing In Ohio By Jim Letizia • Mar 15, 2013 Franklin County is now the fastest-growing county in Ohio. County Property Taxes Due Today By Jim Letizia • Jan 22, 2013 Today is the deadline to pay property taxes in Franklin County.