Barangay Armenia is also part of the South District Division of Barangays in Tarlac City. It is the second biggest Barangay in Tarlac City. Barangay Balanti bound it on the North, Barangay San Jose de Urquico on the Northeast, Barangay Dela Paz on the East, Barangay San Carlos on the Southeast, Barangay Atioc and Barangay San Miguel were both on the Northeast of Armenia, Municipality of San Jose on the West and Municipality of Capas on the South.

It is approximately 10.4 kilometers away from city proper. It has a total land area of 1,375.27 hectares. The 1,177.7 hectares designated to the Agricultural area and the remaining 197.57 hectares correspond to a residential area.

It also divided into 7 Sitio’s namely: Sitio Apalang, Sitio Apalucung, Sitio Bayabas, Sitio Dam, Sitio Maniknik, Sitio Proper, Sitio Sampalok.

Barangay Armenia classified as Rural Barangay. It has a total population of two thousand nine hundred twenty five (2,925) as of 2005, and a household population of six hundred twenty seven (627).

Barangay Armenia is also an agricultural barangay. Mostly 80% of the total populace in this area was acquiring their daily needs through by means by means of farming. They cultivate palay, corn, and vegetables vice versa depending on the season of planting. The rest of the populace here were professionals, laborers, employees, construction workers and so on. The others have their own mini business such as sari-sari stores and so on.

According to old folks of this Barangay, their place served as “War Zone” during the Spanish era. It is for this reason, why people abandoned their place. Only when tension between Filipinos and Spaniards calm down when their return on their houses. When World War II exploded between Americans and Japanese, residents scattered to nearby Baraga’s such as Sapping Tagalong, San Vicente and Navy and returned when peace restored.

In 1950’s to 1960’s Armenia was covered by tension because of the NPA (New People’s Army) visiting their place that cause of some of the resident to evacuate their barangay. Even in 80’s many are decided not to leave their barangay.

The name”Armenia” comes out into two legends. Some say it came from a Pompano word “Army La” which means Tagalong word as “Army Silo”. According to rumors of the elders, long before the establishment of this Baraga, due to gossip of people they included the armies the place as “Army La” which later became Armenia. Another story that is similar with the army but different in the three ending, letters. It is combined words of ARMY and NIA. The name Armenia coined when the National Irrigation Authority was established.

The Mendoza, Feliciano, dela Cruz, Baun Family were the first settlers in this place.

Eighty percent of the total populations are Pampango, and the rest are Tagalog, Bisaya, Pangasinense, and Ilocano.

Barangay Armenia celebrates their feast day every December 7-8 as a thanksgiving to the Patron Immaculate Concepcion.