Äetsä

Äetsä is a former municipality of Finland. It was located in the Pirkanmaa region. The municipality was consolidated with the town of Vammala and the municipality of Mouhijärvi in 2009 to form the new municipality of Sastamala.

The area of Äetsä has a long history, with evidence of human settlement dating back to the Stone Age. During the Middle Ages, the region was part of the historical Satakunta province. The municipality itself was established in 1932 when it was separated from the larger municipality of Tyrvää. The name "Äetsä" is believed to derive from the ancient Finnish word "äetsi," meaning a marsh or bog.

Economically, Äetsä was historically based on agriculture and forestry. Over time, industrial activities also developed, particularly in the vicinity of the Karkku railway station, which served as a hub for local industries. The municipality's landscape is characterized by forests, lakes, and agricultural land, typical of the Finnish countryside.

The administrative center of Äetsä was located in the village of Karkku. Karkku also had a notable medieval stone church, which remains a significant historical landmark. The consolidation into Sastamala aimed to create a more viable and efficient administrative unit for the region, pooling resources and services. Today, the former area of Äetsä is an integral part of Sastamala, contributing to its cultural heritage and regional identity.