Lincoln is a city in Placer County, California, United States, part of the Sacramento metropolitan area. Located in an area of rapid suburban development, it grew 282.1 percent between 2000 and 2010, making it the fastest growing city over 10,000 people in the U.S. Its 2019 population was estimated to be 48,275.
Lincoln is part of the Sacramento-Roseville Metropolitan Statistical Area.
The original townsite was surveyed and laid out in 1859 by Theodore Judah along the proposed line of the California Central Railroad. The name "Lincoln" was conferred in honor of Charles Lincoln Wilson, one of the organizers and directors of the California Central Railroad. The CCRR was planned as a rail link between the cities of Marysville and Sacramento via a connection to the Sacramento Valley Railroad in Folsom. Grading from Folsom to Marysville commenced in 1858 and was completed to Grider's Ranch (Roseville) by 1860. Track laying began that same year and the rails reached the site of Lincoln in early 1861. At this point, due to a lack of funds, further construction on the California Central was temporarily halted and Lincoln experienced a small-scale boom as the northern terminus of this new road. Within a few years, however, more investors were found and the line was extended to Wheatland, in Yuba County, bringing an end to this early stage of Lincoln's development.
When most of its population and business moved on with the railroad, the town settled into a lull until the early 1870s, when rich clay deposits of the Ione Formation were discovered nearby.