[3] In 1953, large numbers of immigrants started settling permanently in this area which was then sparsely populated by the native Subanen.

Opportunities in agriculture, business and employment attracted more settlers into the area, particularly during the year 1957 and 1958.

As early as 1963, three years after the SAMICO road was completed and the company was in full-blast operation, the population of Bayog already warranted the creation of a new municipality.

The then Senator Pealez contented that the creation of a new municipality through an executive Order was against the law as the same was a prerogative of Congress.

The new municipality was formed out of twenty barrios of the Municipality of Buug (at that time still Province of Zamboanga del Sur): Bayog (which became the poblacion), Bobuan, Datagan, Pulangbato, Dipili, Salawagan, Lamari, Damit, Depasi, Pangi (now San Isidro), Liba, Datagan I, Datagan II, Mataga, Dimalinao, Baking, Dipuri, Kwai, Maton-og and Kanipa-an.

[6] During the later part of the year, barangays Supon, Canoayan, Dagum, Camp Blessing, Conakon, Matin-ao, Balukbahan, Sigacad, Deporehan, Bantal and Balunbunan were created by virtue of a Provincial Board Resolution.

It is bounded on the north by Godod, Bacungan, Sindangan, and Siayan; on the east by Lakewood; on the south by Kumalarang, Buug, and Diplahan; and on the west by Kabasalan.

Poverty Incidence of Bayog Source: Philippine Statistics Authority[12][13][14][15][16][17][18][19] Bayog has one of the most bustling economies in the province, since it is one of the top revenue-producing municipalities in Zamboanga del Sur, with an annual income of over 25,000,000 which come mainly from mining, business establishments, and quarrying.

The people have also been engaged in logging due to the vast forest which were found in the area.

[citation needed] Every summer, the town was always been the venue of different religious gatherings, including the Regional Youth Camp which is hosted by the Liberty Bible Baptist Church and draws approximately 600 youths from all over the region and several participants from Cebu, Lanao del Norte, and Misamis Occidental.

There are also passenger buses and jeepneys plying Bayog to Buug, Bayog-Pagadian routes.

The charred municipal building is in the center, looking over Bayog Municipal Plaza, which featured a Children's Park; a twin fountain which has the town's map drawn on it; a flower field, a priority project of the recent administration; a statue of the National Hero; the famous 30 flagpoles, and the Bayog Trees, which is believed to be the burial site of a Subanen Datu which was considered as the first town's settler.

On its right side, resides the Philippine National Police Headquarters, the Bayog Lawn Tennis Association Court, the Municipal Canteen, the Municipal Motorpool, the SIVAFA Midwife Clinic, and the AFUZS Headquarters.

Along the side of the Municipal Hall, there you can find the Senior Citizen House, the post office, the Office of the Agriculturist, the Department of Transportation and Communication, the Department of Environment and Natural Resources, Department of Social Welfare and Development, the Municipal Day Care Center, the Newly constructed E-Center and the Municipal Swimming Pool.

It has replaced the External Studies Unit of Western Mindanao State University, which for seven years have served the municipality of Bayog and provided the Bayoganos access to higher learning.