According to the 2000 U.S. Census, the county has a total area of 708.86 square miles (1,835.9 km2), of which 655.14 square miles (1,696.8 km2) (or 92.42%) is land and 53.71 square miles (139.1 km2) (or 7.58%) is water.
There were 15,779 households out of which 23.80% had children under the age of 18 living with them, 61.80% were married couples living together, 6.60% had a female householder with no husband present, and 28.40% were non-families. 23.30% of all households were made up of individuals and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.31 and the average family size was 2.68.
In the county the population was spread out with 20.30% under the age of 18, 6.10% from 18 to 24, 23.30% from 25 to 44, 31.40% from 45 to 64, and 19.00% who were 65 years of age or older. The median age was 45 years. For every 100 females there were 100.00 males. For every 100 females age 18 and over, there were 97.50 males.
The median income for a household in the county was $35,840, and the median income for a family was $40,695. Males had a median income of $28,020 versus $20,825 for females. The per capita income for the county was $20,197. About 8.00% of families and 11.40% of the population were below the poverty line, including 17.00% of those under age 18 and 7.70% of those age 65 or over.
District 155 – Diane Franklin (R-Camdenton). Consists of most of the county and includes the communities of Camdenton, Climax Springs, Linn Creek, Macks Creek, Osage Beach, Sunrise Beach, and Village of Four Seasons.
Missouri House of Representatives – District 155 – Camden County (2010)