According to Goodspeed's History of Lincoln County, Missouri (1888), Lincoln County was named by Major Christopher Clark, the first permanent white settler, when he addressed the Territorial Legislature saying, "I was born, sir, in Link-Horn County, N.C., I lived for many years in Link-Horn County in old Kain-tuck. I wish to die in Link-Horn County, in Missouri; and I move, therefore, that the blank in the bill be filled with the name Link-Horn." The motion was carried unanimously and the clerk, not adopting the frontier parlance of the Major, wrote "Lincoln" in the blank space of the bill. Others say it was named for Major General Benjamin Lincoln who served in the Continental Army during the American Revolutionary War.
According to the 2000 U.S. Census, the county has a total area of 640.41 square miles (1,658.7 km2), of which 630.49 square miles (1,633.0 km2) (or 98.45%) is land and 9.92 square miles (25.7 km2) (or 1.55%) is water.
There were 13,851 households out of which 40.00% had children under the age of 18 living with them, 61.50% were married couples living together, 10.10% had a female householder with no husband present, and 23.80% were non-families. 19.70% of all households were made up of individuals and 7.70% had someone living alone who was 65 years of age or older. The average household size was 2.77 and the average family size was 3.17.
In the county the population was spread out with 30.00% under the age of 18, 8.10% from 18 to 24, 30.20% from 25 to 44, 21.00% from 45 to 64, and 10.80% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 98.40 males. For every 100 females age 18 and over, there were 97.90 males.
The median income for a household in the county was $42,592, and the median income for a family was $47,747. Males had a median income of $35,564 versus $23,270 for females. The per capita income for the county was $17,149. About 6.20% of families and 8.30% of the population were below the poverty line, including 9.60% of those under age 18 and 9.00% of those age 65 or over.
District 11 – Ed Schieffer (D-Troy). Consists of most of the entire county and includes the communities of Cave, Chain of Rocks, Foley, Fountain N’ Lakes, Hawk Point, Moscow Mills, Old Monroe, Silex, Troy, Truxton, Whiteside, and Winfield.
Missouri House of Representatives – District 11 - Lincoln County (2010)