立石县是越南北部永福省直辖的一县。该县地理位置为省北部 (105°30′ to 105°45′ 经东 21°10′ to 21°30′ 纬北)。这就是该省山区县。县面积323。02平方公里，人口为20。7万(2004年)。县人民政府驻立石市镇。民族成份有京，华，瑶族, Tày, Nùng, Sán Dìu。立石县直辖行政区划氛围一个市镇和35社(乡)

Lập Thạch is a rural district of Vĩnh Phúc Province in the Red River Delta region of northern Vietnam. This district is located in the northwestern Vĩnh Phúc, at coordinates: 105°30′ to 105°45′ E and 21°10′ to 21°30′ N, bordering Tuyên Quang on the north, districts of Tam Đảo and Tam Dương on the east, Vĩnh Tường on the south and Sông Lô District and Phú Thọ Province on the west.