The city is represented in the lower house of the Congress through its lone congressional district since 2022.
The province of Laguna was represented in the Interim Batasang Pambansa as part of Region IV-A from 1978 to 1984.
On August 28, 2019, Santa Rosa was granted its own representation in the House of Representatives beginning in 2022 by virtue of Republic Act No.
[2] However, the city's residents still vote as part of the province's 1st Sangguniang Panlalawigan district for the purpose of electing Provincial Board members.
The city's current representative is a member of the National Unity Party who is part of the majority bloc in the 19th Congress.