Below is a list of Hemlock IN zip codes. For your research we have also included Hemlock Area Code, Time Zone, UTC and the local Howard County FIPS Code. Each Hemlock Indiana zip code has a center Longitude / Latitude point (the Hemlock center is -86.041603088379 / 40.419998168945). For your convenience we have also indicated if that zip code in Hemlock observes Daylight Savings time.