Below is a list of Lamont IA zip codes. For your research we have also included Lamont Area Code, Time Zone, UTC and the local Buchanan County FIPS Code. Each Lamont Iowa zip code has a center Longitude / Latitude point (the Lamont center is -91.647598266602 / 42.599498748779). For your convenience we have also indicated if that zip code in Lamont observes Daylight Savings time.