San Miguel is a part of the Metro Iloilo–Guimaras area, centered on Iloilo City.

The municipality is bordered by Cabatuan in the north, Santa Barbara and Pavia in the east, Alimodian and Leon in the west, and by Oton in the south.

Southeast of San Miguel is Mandurriao district of Iloilo City.

Karay-a is also spoken as a secondary language, especially in the northeastern part bordering the municipalities of Cabatuan and Leon.

Poverty Incidence of San Miguel Source: Philippine Statistics Authority[11][12][13][14][15][16][17][18]