Arkhangelsk of the 2010 Census, the city's population was 348,783, down from 356,051 recorded in the 2002 Census, and further down from 415,921 recorded in the 1989 Census. The arms of the city display the Archangel Michael in the act of defeating the Devil. Legend states that this victory took place near where the city stands, hence its name, and that Michael still stands watch over the city to prevent the Devil's return. Vikings knew the area around Arkhangelsk as Bjarmaland. Ohthere of Hålogaland told circa 890 of his travels in an area by a river and the White Sea with
Lake Onega area containing the Kondopozhskaya (, depth up to ), Ilem-Gorskaya (), Lizhemskoy () and Unitskoy () bays. To the southwest of Greater Onega lies Petrozavodskoye Onego () containing the large Petrozavodsk and small Yalguba and Pinguba bays. To the east of Zaonezhye there is a bay, northern part of which is called Povenetsky Bay and the southern part is Zaonezhsky Bay. There, deep sections alternate with banks and islands which split the bay into several parts. The southernmost part of them, Lesser Onega, is deep. All the shores there are rocky. The average depth of the lake is , and