Lesotho Business Directory: LSO is the ISO 3 alphabet country code of Lesotho. Currency of Lesotho is M, which has a short code of LSL. Capital of Lesotho is Maseru. Lesotho has the population of 2263010 and approximate area is 30355.00 square kilometers (or approx. 18862.597 square miles). Population density of Lesotho is approx. 74/Km2 (or approx. 45.9836/mile2)