Lubao is a coastal municipality in the province of Pampanga.
The municipality has a land area of 155.77 square kilometers or 60.14 square miles which constitutes 7.78% of Pampanga's total area. Its population as determined by the 2020 Census was 173,502. This represented 7.12% of the total population of Pampanga province, or 1.40% of the overall population of the Central Luzon region. Based on these figures, the population density is computed at 1,114 inhabitants per square kilometer or 2,885 inhabitants per square mile.