| Official Name: | Sundown, Missouri |
| Settlement Type: | Unincorporated community and census-designated place |
| Mapsize: | 250x200px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Missouri |
| Subdivision Type2: | County |
| Subdivision Name2: | Ozark |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.83 |
| Area Land Km2: | 3.78 |
| Area Water Km2: | 1.05 |
| Area Total Sq Mi: | 1.86 |
| Area Land Sq Mi: | 1.46 |
| Area Water Sq Mi: | 0.40 |
| Population As Of: | 2020 |
| Population Total: | 62 |
| Population Density Km2: | 16.39 |
| Population Density Sq Mi: | 42.47 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 771 |
| Coordinates: | 36.5664°N -92.6369°W |
| Blank Name: | FIPS code |
| Blank Info: | 29-71628[2] |
| Blank1 Name: | GNIS ID |
| Blank1 Info: | 1669607 |
Sundown is an unincorporated community and census-designated place in Ozark County, Missouri, United States. The population was 38 at the 2000 census. Sundown was a village until 2000, when the community disincorporated.
Sundown is located on the east shore of the Little North Fork arm of Bull Shoals Lake. It lies south of U.S. Route 160 approximately 1.5 miles southwest of Isabella and two miles southeast of Theodosia.[3]
According to the United States Census Bureau, the village has a total area of 1.1sqmi, all land.
As of the census of 2000, there were 38 people, 17 households, and 14 families residing in the village. The population density was 35.4sp=usNaNsp=us. There were 25 housing units at an average density of 23.3 per square mile (9.0/km). The racial makeup of the village was 100.00% White.
There were 17 households, out of which 23.5% had children under the age of 18 living with them, 76.5% were married couples living together, 5.9% had a female householder with no husband present, and 17.6% were non-families. 17.6% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.43.
In the village the population was spread out, with 15.8% under the age of 18, 5.3% from 18 to 24, 10.5% from 25 to 44, 34.2% from 45 to 64, and 34.2% who were 65 years of age or older. The median age was 60 years. For every 100 females, there were 81.0 males. For every 100 females age 18 and over, there were 100.0 males.
The median income for a household in the village was $24,500, and the median income for a family was $27,500. Males had a median income of $16,250 versus $36,250 for females. The per capita income for the village was $15,360. There were no families and 8.6% of the population living below the poverty line, including no under eighteens and none of those over 64.