Armenia is a landlocked country located in the South Caucasus region of Eurasia. As of my knowledge cutoff date in September 2021, the largest cities in Armenia by population are:

1. Yerevan - Yerevan is the capital and largest city of Armenia, with a population estimated to be over 1 million. It is the political, economic, and cultural center of the country and has a rich history and cultural heritage.

2. Gyumri - Gyumri is the second largest city in Armenia, located in the northwest of the country. It is known for its historic architecture, including many churches and buildings from the 19th century, and has a population estimated to be around 120,000.

3. Vanadzor - Vanadzor is the third largest city in Armenia, located in the northern part of the country. It is known for its industrial and manufacturing activities, including textile and machinery production, and has a population estimated to be around 80,000.

4. Vagharshapat (Etchmiadzin) - Vagharshapat, also known as Etchmiadzin, is a city located in the Armavir Province of Armenia. It is the center of the Armenian Apostolic Church and is known for its religious significance, including the Etchmiadzin Cathedral, which is considered the oldest cathedral in the world. It has a population estimated to be around 60,000.

5. Hrazdan - Hrazdan is a city located in the Kotayk Province of Armenia, known for its hydropower plants and mining activities. It has a population estimated to be around 50,000.

Please note that population figures may change over time, and it's always best to refer to the latest official data or reputable sources for up-to-date information on the largest cities in Armenia or any other country.

Armenia is a landlocked country located in the South Caucasus region of Eurasia. As of my knowledge cutoff date in September 2021, the largest cities in Armenia by population are:

1. Yerevan - Yerevan is the capital and largest city of Armenia, with a population estimated to be over 1 million. It is the political, economic, and cultural center of the country and has a rich history and cultural heritage.

2. Gyumri - Gyumri is the second largest city in Armenia, located in the northwest of the country. It is known for its historic architecture, including many churches and buildings from the 19th century, and has a population estimated to be around 120,000.

3. Vanadzor - Vanadzor is the third largest city in Armenia, located in the northern part of the country. It is known for its industrial and manufacturing activities, including textile and machinery production, and has a population estimated to be around 80,000.

4. Vagharshapat (Etchmiadzin) - Vagharshapat, also known as Etchmiadzin, is a city located in the Armavir Province of Armenia. It is the center of the Armenian Apostolic Church and is known for its religious significance, including the Etchmiadzin Cathedral, which is considered the oldest cathedral in the world. It has a population estimated to be around 60,000.

5. Hrazdan - Hrazdan is a city located in the Kotayk Province of Armenia, known for its hydropower plants and mining activities. It has a population estimated to be around 50,000.

Please note that population figures may change over time, and it's always best to refer to the latest official data or reputable sources for up-to-date information on the largest cities in Armenia or any other country.