The municipality was named after Captain Roberto Lemery, a commanding officer of the local garrison.

During the early part of the 18th century, settlers from Taal, northern Mindoro and southern Cavite were attracted to the vast plain near the shores of Balayan Bay because of its abundance in fish and other marine life.

It became a district municipality through the efforts of Candida Cesario Valenzuela, Manuel Cabrera, Policarpio Mariño and Domingo Agoncillo.

[6] Through Presidential Proclamation 685, October 25, 2024 was declared a special non-working day to commemorate its founding anniversary as an independent municipality.

Poverty Incidence of Lemery Source: Philippine Statistics Authority[17][18][19][20][21][22][23][24] In the Rankings of Cities and Municipalities that are based on the sum of their scores on 3 Pillars: Economic Dynamism, Government Efficiency, and Infrastructure.

The primary source of income is agricultural activities, including crop production, livestock and poultry, with 30 out of 46 barangays involved in it.

[25] As a coastal municipality with 13 barangays located along the shore, fishing activities are also significant contributor to the local economy.

Furthermore, bus lines from Manila serving the Southern Tagalog Region reach Central Batangas by way of Lemery.

Vans also connect the town to and from other urban centers in the region such as Dasmariñas, Calamba and Lucena.

The Lipa-Lemery Road connects the STAR Tollway in Lipa to Lemery, passing a number of municipalities along the southern shores of Taal Lake.