Delaware County, Ohio has approximately 98,000 real estate property tax parcels. Real estate property taxes are billed in two (2) installments annually.The Trumbull County Department of Job and Family Services (TCDJFS) releases this Request for. The Treasurer is responsible for mailing the bills for real estate property taxes at least twenty (20) days prior to these semi- annual due dates. Upon receipt of your bid, you will receive a reply indicating your bid has been received. Gov or call 419-245-1695. Competitive bids from private contractors for completing the work.