Below is a list of Linn Grove IN zip codes. For your research we have also included Linn Grove Area Code, Time Zone, UTC and the local Adams County FIPS Code. Each Linn Grove Indiana zip code has a center Longitude / Latitude point (the Linn Grove center is -85.041496276855 / 40.641498565674). For your convenience we have also indicated if that zip code in Linn Grove observes Daylight Savings time.