Petersburg is a city located in Alaska. Petersburg has a 2020 population of 3,106. Petersburg is currently declining at a rate of 0.00% annually and its population has increased by 5.36% since the most recent census, which recorded a population of 2,948 in 2010. Petersburg reached it's highest population of 3,224 in 2000.
The average household income in Petersburg is $90,283 with a poverty rate of 8.15%. The median rental costs in recent years comes to $950 per month, and the median house value is $221,000. The median age in Petersburg is 39.7 years, 37.8 years for males, and 42.1 years for females. For every 100 females there are 101.7 males.