1993–1995:
Bodaybinsky District,
Bodaybo,
Bratsk,
Bratsky District,
Katangsky District,
Kazachinsko-Lensky District,
Kirensky District,
Mamsko-Chuysky District,
Nizhneilimsky District,
Ust-Kut,
Ust-Kutsky District The constituency covered sparsely populated northern
Irkutsk Oblast, including the industrial cities of
Bratsk,
Bodaybo and
Ust-Kut.
1995–2003:
Balagansky District,
Bodaybinsky District,
Bodaybo,
Bratsk,
Bratsky District,
Irkutsky District,
Kachugsky District,
Katangsky District,
Kazachinsko-Lensky District,
Kirensky District,
Mamsko-Chuysky District,
Olkhonsky District,
Ust-Kut,
Ust-Kutsky District,
Ust-Udinsky District,
Zhigalovsky District The constituency was significantly altered following the 1995 redistricting, swapping
Nizhneilimsky District for
Balagansky and
Ust-Udinsky districts with
Tulun constituency. This seat also gained
Irkutsky,
Kachugsky and
Olkhonsky districts in the south from
Angarsk constituency.
2003–2007:
Balagansky District,
Bodaybinsky District,
Bodaybo,
Bratsk,
Bratsky District,
Chunsky District,
Katangsky District,
Kazachinsko-Lensky District,
Kirensky District,
Mamsko-Chuysky District,
Nizhneilimsky District,
Tayshet,
Tayshetsky District,
Ust-Ilimsk,
Ust-Ilimsky District,
Ust-Kut,
Ust-Kutsky District,
Ust-Udinsky District,
Zhigalovsky District After the 2003 redistricting
Irkutsk Oblast lost one of its four constituencies, so all remaining seats saw major changes. The constituency retained all of its 1993–1995 territory, losing
Irkutsky,
Kachugsky and
Olkhonsky districts to
Irkutsk constituency. This seat instead was pushed to the west, gaining western Irkutsk Oblast from the dissolved
Tulun constituency.
2016–2026:
Bodaybinsky District,
Bratsk,
Bratsky District,
Chunsky District,
Katangsky District,
Kirensky District,
Mamsko-Chuysky District,
Nizhneilimsky District,
Ust-Ilimsk,
Ust-Ilimsky District,
Ust-Kutsky District The constituency was re-created for the
2016 election and retained only its northern part, losing
Tayshet to
Shelekhov constituency and central
Irkutsk Oblast to
Irkutsk constituency.
Since 2026:
Bodaybinsky District,
Bratsk,
Bratsky District,
Chunsky District,
Katangsky District,
Kazachinsko-Lensky District,
Kirensky District,
Mamsko-Chuysky District,
Nizhneilimsky District,
Ust-Ilimsk,
Ust-Ilimsky District,
Ust-Kutsky District After 2025 redistricting the constituency was slightly changed, gaining
Kazachinsko-Lensky District from
Irkutsk constituency. ==Members elected==