Seneca County Office

3140 South State Route 100, Suite E
Tiffin, OH 44883

Hours of Operation

8:00 am-4:30 pm
By Appointment


County News

  1. STEM Day!

    We will be hosting a STEM Day on Tuesday, August 16th from 9 a.m.-12 p.m. or 1-4 p.m. Registrations and fees are due to the Extension office by Monday, August 8th.  STEM Day Registration
  2. Miscellaneous Project Judging

    Miscellaneous project judging will be held at the Seneca County Fairgrounds on Wednesday, July 13th, Saturday, July 16th and Saturday, July 23rd (for gardening projects only). Please see the letters below to register for specific times, see what day your project will be judged, and other additional...
  3. Ohio Certified Volunteer Naturalist Course

    Apply for the Ohio Certified Volunteer Naturalist Course by Friday, August 5th. Contact Sr. Shirley Shafranek, Franciscan Earth Literacy Center, at 419-448-7485 or for registration and more information. You can also visit