According to the Indiana Secretary of State, you must drop your ballot off at your county election official office by NOON PREVAILING TIME ON ELECTION DAY. Details on the location and phone number for the county election official office in Blackford County is as follows:
- BLACKFORD COUNTY COURTHOUSE, FIRST FLOOR, 110 W WASHINGTON ST, HARTFORD CITY, IN (source)
- Phone: 765-348-7217