Onley is a city located in Virginia. With a 2020 population of 492, it is the 165th largest city in Virginia and the 13380th largest city in the United States. Onley is currently declining at a rate of -1.01% annually and its population has decreased by -4.65% since the most recent census, which recorded a population of 516 in 2010. Onley reached it's highest population of 518 in 2011. Spanning over 1 miles, Onley has a population density of 615 people per square mile.
The average household income in Onley is $64,130 with a poverty rate of 23.44%. The median rental costs in recent years comes to $633 per month, and the median house value is $210,200. The median age in Onley is 40.5 years, 40.1 years for males, and 40.9 years for females. For every 100 females there are 61.5 males.