Onley is a city located in Accomack County Virginia. With a 2020 population of 490, it is the 166th largest city in Virginia and the 13401st largest city in the United States . Onley is currently declining at a rate of -1.01% annually and its population has decreased by -5.04% since the most recent census, which recorded a population of 516 in 2010. Onley reached it's highest population of in . Spanning over 1 miles, Onley has a population density of 612 people per square mile.
The average household income in Onley is $66,941 with a poverty rate of 19.09%. The median rental costs in recent years comes to $643 per month, and the median house value is $197,300. The median age in Onley is 40 years, 38.3 years for males, and 40.5 years for females.