Barangay Sapang Tagalog is also one of the 24 Barangays enclosed in the South District Division of Barangays in Tarlac City. Barangay Capehan bound it on the North, Barangay San Francisco on the West, Barangay Burot on the South, Barangay Buenavista on the East, and Municipality of Concepcion on the South.

It is approximately 7.9 kilometers away from city proper. It has a total land area of 319.41 hectares wherein the 112.25 hectares designates for agricultural area and the remaining 207.16 hectares designate to an industrial, commercial and residential area.

It also divided into 7 Zones namely: Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6 and Zone 7.

Barangay Sapang Tagalog classified as Rural Barangay, it has a total population of three thousand two hundred twenty two (3, 222) as of 2005, and a household population of six hundred eighty three (683).

Barangay Sapang Tagalog was both commercial and agricultural barangay. Commerce is their major source of livelihood. Different kinds of business firms situated here. These are gasoline station, videoke bar, auto supply, ceramic tiles, ref-aircon repair shop, car wash, De Leon bus terminal and so on. Other residents were laborers, employees, construction workers and so on. Some residents were farmers. They cultivate palay, corn, vegetables and so on. And some have their own business such as sari-sari stores, canteen and others.

In the early times, Barangay Sapang Tagalog was just a part of Barangay Burot. According to the elders, at that time there was a lake situated in this area. It serves them as their source of water for washing clothes and irrigation. At that time, also residents of this place were almost speaking “Tagalog” they came from Metro Manila. They are the pioneers of this place and to the place where they settled. “Sapang Tagalog” was originated came from the dialect spoken of the pioneers of this place. Since 1930’s Sapang Tagalog was just a part of Barangay San Francisco. Through the petition of residents, of Sapang Tagalog their petition granted and by year 1935 Sapang Tagalog proclaimed as a separate and newly established Barangay in Tarlac.

The pioneers of this barangay were Tongol, Manalo, Cano, Canlas, Barbon, and Dayrit family.

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

Barangay Sapang Tagalog celebrates their feast day every last Sunday of January as a thanksgiving to their Patron Holy Family. Holy Family is a term referring to the child Jesus, Mary, and Joseph. In the Roman Catholic Church the feast in its honor falls usually on the first Sunday after the Epiphany.