Below is a list of Ladoga IN zip codes. For your research we have also included Ladoga Area Code, Time Zone, UTC and the local Montgomery County FIPS Code. Each Ladoga Indiana zip code has a center Longitude / Latitude point (the Ladoga center is -86.80110168457 / 39.91370010376). For your convenience we have also indicated if that zip code in Ladoga observes Daylight Savings time.