Although this was not the norm, as demonstrated in the great rebellion led by toqui Pelantaru in 1599 and that meant the destruction and abandonment of cities and fountains built by the Spanish conquistadors south of the Bío-Bío.

But most of the life of the Huilliche communities in the area, spent a relatively quiet in close contact with the natural environment that gave them their livelihood: the gathering, hunting, fishing, livestock and incipient agriculture, were the activities that allowed him to maintain their sedentary lifestyle and the development of certain cultural expressions.

During the colonial period this picture changed little, remaining outside the territories of the colonization process, only rarely are noticed some attempts to integrate this area to civilized life, for example, through missionary work of the Jesuits from the fortifications of Quinchilca in the north, and San José de Alcudia, on the south, on the banks of the river Well, west of the lake.

During the Republican era in the nineteenth and twentieth centuries, the Chilean state must promote a process of settlement and integration of their individual territories, the national life.

The first colonists who settled on the banks of Lake Ranco, arrived from the late nineteenth century, which motivated his adventurous spirit took up residence in the western sector of the Lake, in the areas of Hueimen and Ignatieff, natural beauty and the immense wealth of native forests was a major reason why families continue to arrive by German colonists, who formed the vanguard of settlement in this place and encouraged the integration with the central valley.

These families may include: Ancacura, Huaito, Huenuman, Quichel, NEIP, Antilaf, Calfulef, Millape, Curinao, Calfumil, Catrihual and others, which are an example of the historical heritage of the ancestors Huilliches.

The construction of a railway between Cocula (southern sector of La Union) and Lago Ranco began in 1928, this project was initiated by the first settlers: Konust, Daniel and Rettig, who, with business vision prompted this action.

So in the first instance, this town received the name of Punta de Rails, later by expansion into the hills, was renamed Pérez Rosales TRINGL and then drive in honor of German colonization in the area.

A whole era marked vapors as the Laja, the Saturn, Osorno, Lili, the Valdivia, going back and bringing people and goods on the waters of Ranco, rarely troubled by the puihua.

Another important milestone in the history community, were determined by the regionalization process driven from 1974, which established the autonomy of the town of Lake Ranco, but also meant segregated Llifén eastern sector, which was integrated into the Futrono commune.

According to the 2002 census of the National Statistics Institute, Lago Ranco spans an area of 1,763.3 km2 (681 sq mi) and has 10,098 inhabitants (5,295 men and 4,803 women).

Also drains into Lake Ranco Riñinahue River, which rises near the Nevada Mountains, close to the limits of the National Park Puyehue.

As a commune, Lago Ranco is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years.

[1][2] He was preceded by Santiago Rosas Lobos (2004–2008)[citation needed] Within the electoral divisions of Chile, Lago Ranco is represented in the Chamber of Deputies by Enrique Jaramillo (PDC) and Gastón Von Mühlenbrock (UDI) as part of the 54th electoral district, together with Pangipulli, Los Lagos, Futrono, Río Bueno, La Unión and Paillaco.

The commune is represented in the Senate during the 2014–2022 period by Alfonso de Urresti (PS) and Ena von Baer (UDI) as part of the 16th senatorial constituency (Los Ríos Region).

According to the agroclimatic diagnosis made, Lago Ranco has a potential forest predominantly due to agro-ecological characteristics of the soil and the existence of abundant reserve of native forests and young plantations of exotic species, the activity is performed at a level primary operation and is characterized by an extraction process without processing timber for other more technology centers.

It also established as part of the destination "Cuenca del Lago Ranco," in conjunction with the municipalities of Rio Bueno, Paillaco, Futrono and La Union.