New Westminster was the name, or part of the name, of several Canadian federal and provincial electoral districts. All provincial and federal ridings in the area of the Lower Mainland were part of the original New Westminster ridings. "Offspring" ridings are indicated accordingly.
The New Westminster riding originally included all of the Lower Mainland outside of the City of New Westminster, such that all Fraser Valley and Vancouver ridings are derivatives of the New Westminster riding, which became a three-member renamed Westminster for the 1890 election before being partitioned into four ridings. The following table attempts to trace the lineage of the Lower Mainland ridings (other than those in Vancouver or the North Shore, which can be found on Vancouver (electoral districts):
In British Columbia, senators have the option to self-designate an area within the province which they symbolically serve. As these designations are unnofficial, they do not correspond to an exact geographic boundary. Since confederation, three senators have made New Westminster their senatorial designation.
