Petersburg 12138 Real EstatePetersburg is located in New York. Petersburg, New York 12138has a population of 3,153. Petersburg 12138 is more family-centric than the surrounding county with 26.82% of the households containing married families with children. The county average for households married with children is 24.39%. The median household income in Petersburg, New York 12138 is $66,974. The median household income for the surrounding county is $76,731 compared to the national median of $69,021. The median age of people living in Petersburg 12138 is 49.9 years. Petersburg WeatherThe average high temperature in July is 78.1 degrees, with an average low temperature in January of 11.8 degrees. The average rainfall is approximately 45.8 inches per year, with 71.8 inches of snow per year. Petersburg MapReal estate near PetersburgNearby CitiesNearby Cities Homes for Sale |