Signal Hill is a city located in California. With a 2020 population of 11,231, it is the 364th largest city in California and the 2866th largest city in the United States. Signal Hill is currently declining at a rate of -0.84% annually but its population has increased by 1.95% since the most recent census, which recorded a population of 11,016 in 2010. Signal Hill reached it's highest population of 11,602 in 2016. Spanning over 2 miles, Signal Hill has a population density of 5,127 people per square mile.
The average household income in Signal Hill is $95,927 with a poverty rate of 16.45%. The median rental costs in recent years comes to $1,449 per month, and the median house value is $505,900. The median age in Signal Hill is 37.9 years, 39.6 years for males, and 37 years for females. For every 100 females there are 82.3 males.