Scott, Josiah, House
SW of Annis, Annis, ID Local significance of the building:Listed in National Register of Historic Places in 1982.
The National Register of Historic Places is the official list of the Nation’s historic places worthy of preservation. Authorized by the National Historic Preservation Act of 1966, the National Park Service’s National Register of Historic Places is part of a national program to coordinate and support public and private efforts to identify, evaluate, and protect America’s historic and archeological resources.
The arrival of European explorers and fur trappers in the early 19th century marked a new era for Jefferson County. The Lewis and Clark Expedition, led by Meriwether Lewis and William Clark, passed through the area in 1805, documenting their journey and mapping the land. This opened the door for future settlers and led to increased exploration and settlement in the region.
By the mid-1800s, pioneers began to establish permanent settlements in Jefferson County. The Oregon Trail, a major westward migration route, passed through the area, attracting settlers in search of new opportunities. Over time, farming and ranching became the main economic activities in the region, with communities like Rigby and Menan prospering as agricultural centers.
The 20th century brought significant changes to Jefferson County. The construction of the Minidoka Dam in the 1900s brought irrigation water to the area, transforming dry lands into fertile farmland. The development of transportation infrastructure, such as roads and railways, further connected the county with the rest of the state and facilitated economic growth. Today, Jefferson County retains its agricultural heritage while also benefiting from its proximity to larger cities like Idaho Falls, contributing to the county's ongoing development and prosperity.
Jefferson County Timeline
This timeline provides a glimpse into the major events and milestones that have shaped the history of Jefferson County, Idaho.
- 1810: Lewis and Clark expedition passes through the area
- 1833: Fur trader and explorer Benjamin Bonneville explores the region
- 1863: Jefferson County is established as a county in Idaho Territory
- 1882: First railroad, the Utah & Northern, reaches the county
- 1889: Idaho becomes the 43rd state, including Jefferson County
- 1923: Snake River electrification project brings electricity to the county
- 1949: Idaho National Laboratory (INL) is established in the county
- 1972: Accident at the INL's SL-1 nuclear reactor results in fatalities
- 1981: The Jefferson County Historical Society is founded
- 2000: County population surpasses 20,000
- 2016: Jefferson County celebrates its 150th anniversary