Below is a list of Lewis And Clark County MT zip codes. For your research we have also included Lewis And Clark County Area Code, Time Zone, UTC and the local County FIPS Code. Each Lewis And Clark County Montana zip code has a center Longitude / Latitude point (the Lewis And Clark County center is -112.16200256348 / 46.734199523926). For your convenience we have also indicated if that zip code in Lewis And Clark County observes Daylight Savings time.