The municipality of Atlahuilco is delimited to the north by Tlilapan, to the north-east by San Andrés Tenejapan, to the east by Tequila, Veracruz, to the south-east by Los Reyes, to the south by Xoxocotla, to the west by Soledad Atzompa and to the north-west by Huiloapan de Cuauhtémoc.