|• Total||0.2 sq mi (0.5 km2)|
|• Land||0.2 sq mi (0.5 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||551 ft (168 m)|
|• Density||2,278.2/sq mi (879.6/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|GNIS feature ID||1669519|
Riverwood is located at (38.283520, -85.661967).
According to the United States Census Bureau, the city has a total area of 0.2 square miles (0.52 km2), all land.
Riverwood incorporated on November 11, 1969. In 1998, Riverwood residents rejected a ballot initiative to merge into the city of Indian Hills along with three other small cities. Riverwood was the only city whose tax rate was projected to increase if the merger took effect. The other cities merged the following year with Riverwood off the ballot.
As of the census of 2000, there were 469 people, 177 households, and 149 families residing in the city. The population density was 2,278.2 people per square mile (862.3/km²). There were 183 housing units at an average density of 889.0 per square mile (336.5/km²). The racial makeup of the city was 98.93% White, 0.21% African American, 0.64% Asian, and 0.21% from two or more races. Hispanic or Latino of any race were 0.43% of the population.
There were 177 households out of which 38.4% had children under the age of 18 living with them, 80.2% were married couples living together, 4.0% had a female householder with no husband present, and 15.3% were non-families. 14.7% of all households were made up of individuals and 6.8% had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 2.92.
In the city the population was spread out with 26.4% under the age of 18, 3.8% from 18 to 24, 20.3% from 25 to 44, 32.4% from 45 to 64, and 17.1% who were 65 years of age or older. The median age was 45 years. For every 100 females there were 95.4 males. For every 100 females age 18 and over, there were 94.9 males.
The median income for a household in the city was $107,552, and the median income for a family was $114,493. Males had a median income of $83,493 versus $48,750 for females. The per capita income for the city was $53,783. About 1.3% of families and 1.8% of the population were below the poverty line, including 1.9% of those under age 18 and none of those age 65 or over.