The Department of Lima, known as the Department of the Capital until 1823, is a department and region located in the central coast of Peru; the seat of the regional government is Huacho. Lima Province, which contains the city of Lima, the country's capital, is located west of the department; this province is autonomous and not under the jurisdiction of the regiā¦The Department of Lima, known as the Department of the Capital until 1823, is a department and region located in the central coast of Peru; the seat of the regional government is Huacho. Lima Province, which contains the city of Lima, the country's capital, is located west of the department; this province is autonomous and not under the jurisdiction of the regional government since 2003.