2020 census

At the 2020 census there were 4,792 people.^[8]

2010 census

At the 2010 census there were 4,351 people, 2,038 households, and 1,166 families living in the city. The population density was 446.3 inhabitants per square mile (172.3/km²). There were 5,261 housing units at an average density of 539.6 per square mile (208.3/km²). The racial makeup of the city was 93.6% White, 1.1% African American, 0.6% Native American, 1.1% Asian, 0.2% Pacific Islander, 2.4% from other races, and 1.1% from two or more races. Hispanic or Latino of any race were 4.8%.^[9]

Of the 2,038 households 19.9% had children under the age of 18 living with them, 44.3% were married couples living together, 8.0% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 42.8% were non-families. 35.3% of households were one person and 13% were one person aged 65 or older. The average household size was 2.04 and the average family size was 2.57.

The median age was 48.9 years. 15.8% of residents were under the age of 18; 8.6% were between the ages of 18 and 24; 20.2% were from 25 to 44; 31.3% were from 45 to 64; and 24% were 65 or older. The gender makeup of the city was 48.9% male and 51.1% female.

2000 census

At the 2000 census there were 3,662 people, 1,687 households, and 1,035 families living in the city. The population density was 389.8 inhabitants per square mile (150.5/km²). There were 4,055 housing units at an average density of 431.6 per square mile (166.6/km²). The racial makeup of the city was 97.35% White, 0.76% African American, 0.41% Native American, 0.49% Asian, 0.16% from other races, and 0.82% from two or more races. Hispanic or Latino of any race were 1.20% of the total population.^[3] Of the 1,687 households 19.1% had children under the age of 18 living with them, 51.2% were married couples living together, 7.2% had a female householder with no husband present, and 38.6% were non-families. 31.6% of households were one person and 10.9% were one person aged 65 or older. The average household size was 2.09 and the average family size was 2.58.

The age distribution was 16.0% under the age of 18, 7.4% from 18 to 24, 26.9% from 25 to 44, 29.3% from 45 to 64, and 20.3% 65 or older. The median age was 45 years. For every 100 females there were 96.8 males. For every 100 females age 18 and over, there were 94.9 males.

The median household income was $38,448 and the median family income was $49,554. Males had a median income of $30,444 versus $21,440 for females. The per capita income for the city was $22,685. About 4.5% of families and 6.7% of the population were below the poverty line, including 5.3% of those under age 18 and 6.4% of those age 65 or over.

Schools

• Osage Beach Elementary-Camdenton R-III
• School of the Osage (Miller County R-II School District)

Colleges and universities

• Columbia College - Lake of the Ozarks campus
• State Fair Community College - Lake of the Ozarks campus
• Central Methodist University - Lake of the Ozarks campus

Library

Osage Beach has a public library, the Osage Beach Library.^[10]

Television

The following is a list of television stations that broadcast from and/or are licensed to Osage Beach, Missouri.

Radio

The following is a list of radio stations that broadcast from and/or are licensed to Osage Beach, Missouri.

Infrastructure

As Osage Beach is predominantly a resort town, as such it boasts several tourist attractions and amenities, including an outlet mall with major national brands.^[12]