St. Petersburg is the fourth most populated city in Europe after London, Moscow, and Paris.

Population (total)	4,596,000
Including women	2,529,000      55%
men	2,067,000      45%
Including with the age of 0 to 15 years	680,000         14%
able-bodied	2,835,000      62%
older than able-bodied	1,081,000      24%

Population density

The population density of St. Petersburg is 3,186 citizens per one square kilometer.

Number of families

Total number of families	1,500-1,600 thousand
with 1 person	9%
2 persons	25%
3 persons	36%
4 persons	22%
5 and more persons	8%