With the continuous expansion of Metro Manila, the municipality is now part of Manila's built up area which reaches San Ildefonso in its Northernmost part.
July 23,2013, the first entertainment and supermarket were opened. This makes San Ildefonso becomes "Biglang bukas, Ubos agad" of Bulacan. Gerald Galvez is the current political leader of San Ildefonso.
Dr. Rey A. Gonzales, 12y/o Philippine Grand Champion, ABS-CBN Hamon sa Kampeon: Piano, 1967. First Prize, Bach Piano Competition, University of the Philippines College of Music, 1977. http://m.youtube.com/watch?v=0ZsO-874Ko4