Lillooet is a district municipality in the Squamish-Lillooet region of southwestern British Columbia. The town is on the west shore of the …Lillooet is a district municipality in the Squamish-Lillooet region of southwestern British Columbia. The town is on the west shore of the Fraser River immediately north of the Seton River mouth. On BC Highway 99, the locality is by road about 100 kilometres northeast of Pemberton, 64 kilometres northwest of Lytton, and 172 kilometres west of Kamloops.