Onancock is a city located in Virginia. With a 2020 population of 1,189, it is the 126th largest city in Virginia and the 9621st largest city in the United States. Onancock is currently declining at a rate of -1.08% annually and its population has decreased by -5.86% since the most recent census, which recorded a population of 1,263 in 2010. Onancock reached it's highest population of 1,261 in 2011. Spanning over 1 miles, Onancock has a population density of 1,136 people per square mile.
The average household income in Onancock is $65,649 with a poverty rate of 17.85%. The median rental costs in recent years comes to $790 per month, and the median house value is $196,900. The median age in Onancock is 54.1 years, 47.5 years for males, and 57.6 years for females. For every 100 females there are 86.5 males.