It covers the central and southern part of Freiamt and has a population of 37,379 (as of 31 December 2020).

[1] The Muri district has an area, as of 2009[update], of 138.96 square kilometers (53.65 sq mi).

Of the rest of the land, 13.62 km2 (5.26 sq mi) or 9.8% is settled (buildings or roads).

[2] The blazon of the district coat of arms is Gules a Wall in fess embattled Argent masoned Sable..[3] The Muri district has a population (as of December 2020[update]) of 37,379.

[5] From the 2000 census[update], 18,897 or 66.9% were Roman Catholic, while 4,960 or 17.6% belonged to the Swiss Reformed Church.