Welcome to Lewis and Clark County ...

Time Zone: Lewis and Clark County lies in the Mountain Time Zone (MST/MDT) and observes daylight saving time.

The community of Helena is the Seat for Lewis and Clark County. Helena is also the capital of Montana.

Lewis and Clark County is one of the original counties of Montana and was founded in 1864.

From the Census Estimates for 2019, <1> Lewis and Clark had a population of 69,578 people. This is an increase of 9.75% since the last Census (which gave a population of 63,395 people in 2010).

At the time of the 2010 Census, Lewis and Clark represented 6.41% of the total population of Montana.

Websites of Interest ...

• Websites specific to Montana
  • Jump to Cyndi's List
  • Jump to Family Search
  • Jump to Genealogy Trails
  • Website for the Montana Historical Society

• Websites specific to Lewis and Clark County
  • Jump to Cyndi's List
  • Jump to Family Search
  • Jump to Genealogy Trails

• Websites for nearby counties
  • Broadwater County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Cascade County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Flathead County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Jefferson County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Meagher County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Powell County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails
  • Teton County
    • Jump to Cyndi's List
    • Jump to Family Search
    • Jump to Genealogy Trails

• Cemetery Information and Directories
  • Cemetery Junction: Cemeteries of Montana
  • Cyndi's List
  • Cemeteries of Montana
  • Cemeteries of Lewis and Clark County
  • FamilySearch.org: Cemeteries of Montana
  • Find-A-Grave: Home Page
  • Interment.net
  • Cemeteries of Montana
  • Cemeteries of Lewis and Clark County

• Of Special Interest ...
  • The GenDisasters website specializes in newspaper articles about tragedies and disasters. While it makes interesting reading all by itself, it should be of special interest to genealogists and family historians looking for people who were either affected by or directly involved in such tragedies.
  • At this time (Dec 2022), GenDisasters website is currently offline due to a hacker attack. Hopefully they will be back soon.