According to Wikipedia, 53.8 ± 0.3 million light-years.
That's at a distance of about 54 million light-years from us.
No. It is a single galaxy.
The galaxy cluster that contains the Milky Way is called the Local Group.
Yes its called the Local Cluster or Local Group, we have many minor Globular or Cluster Galaxies orbiting our own.
The Milky Way Galaxy is a spiral galaxy and open clusters are only found in spiral or irregular galaxies.
There are small "cluster" galaxies that are actually in contact with the Milky Way and other galaxies, either being absorbed or moving past the larger formations. Aside from these types, the Milky Way also has satellite dwarf galaxies, the largest being the Greater and Lesser Magellanic Clouds, with centers 160,000 and 200,000 light-years from the Milky Way, respectively. (The Milky Way is approximately 100,000 light-years in diameter.) The distance to the nearest "major" galaxy, Andromeda, was computed in 2005 as 2.52 million light-years.
The nearest cluster of galaxies is the "Virgo Cluster" discovered by Charles Messier in 1784. The Virgo cluster lies at/near the center of the Supercluster we belong to - also called the "Virgo Supercluster". Our "Local Group" (comprising of The Milky way, Andromeda, and another 25-30 smaller galaxies) is part of the Virgo Cluster. The center of the Virgo cluster is at a distance of about 18 Mpc (Mega parsecs) approx 60 Million lightyears from us [which translates to a 'redshift' of only z=0.004]. Ain't the universe huge? Note: There are quite a few 'groups of galaxies' between us and the center of Virgo Cluster.
lightyears
Viewed from the Galactic North Pole, the Milky Way galaxy is moving anticlockwise.
The cluster of galaxies that includes the Milky Way is known as the Local Group. It consists of over 54 galaxies, with the Milky Way and the Andromeda Galaxy being the two largest members. Other notable galaxies in the Local Group include the Triangulum Galaxy and numerous smaller galaxies, such as the Large and Small Magellanic Clouds. This group spans approximately 10 million light-years in diameter.
Ah, the Milky Way is not actually located in the Virgo Cluster. It's in a group of galaxies called the Local Group, along with our neighbor, the Andromeda Galaxy. But don't you worry, every galaxy in the universe is unique and special in its own way, just like you. So keep looking up at the stars with wonder in your heart, my friend.
The cluster, which contains the Milky way and more than 50 other galaxies, is called the Local Cluster. The cluster has a diameter of 3.1 million parsecs (10 million light years). The Local Group is part of the much larger Virgo Supercluster.