Nepean (federal electoral district)

The original riding was created in 1987 from parts of the Nepean—Carleton riding. It consisted of the City of Nepean. The electoral district was abolished in 1996 when it was redistributed between the Nepean—Carleton (54%) and the Ottawa West—Nepean (46%) ridings.

The riding was then reinstated in 2012 by Elections Canada, taking effect upon the dropping of the writs for the 2015 federal election, scheduled for 19 October 2015.^[2][3] The riding was recreated from parts of the former riding of Nepean—Carleton, essentially the former riding's more urban western portion.

The 2022 Federal Redistribution resulted in a largely rural area (south of Bells Corners, west of Highway 416 and south of Barnsdale Road) being reallocated to the riding of Carleton.^[4] The urban parts of Bells Corners, west of Highway 416 and north of Hunt Club Road, have been shifted to the new Kanata riding.

In a simplification of boundaries, the riding also picked up a portion of the Ottawa West—Nepean riding on its north side. The railway line is now the boundary between the two ridings, whereas previously it formed only the western part of the boundary, with Merivale Road and West Hunt Club forming the eastern boundary.

The new boundaries came into effect for the 2025 federal election.

The most recent iteration of the riding of Nepean is described by Elections Canada^[5] as follows:

Starting at the intersection of Richmond Road with Highway No. 417, the boundary runs southeast to West Hunt Club Road, then south along Richmond Road to Hope Side Road. It continues southwest to Eagleson Road, southeast to Brophy Drive, and northeast along Brophy Drive and Bankfield Road to the Rideau River (west of Long Island). From there, it follows the river northwest and north to West Hunt Club Road, then west, northwest, and southwest to Merivale Road. It proceeds northwest to the Canadian National Railway, west along the railway to Richmond Road, and finally north along Richmond Road.

According to the 2021 Canadian census^[7]

Ethnic groups: 56.0% White, 9.1% South Asian, 7.8% Chinese, 7.5% Arab, 6.9% Black, 3.1% Indigenous, 2.1% Southeast Asian, 2.0% Filipino, 1.6% Latin American, 1.2% West Asian

Languages: 58.8% English, 5.9% French, 5.1% Arabic, 4.0% Mandarin, 1.5% Cantonese, 1.4% Spanish, 1.1% Vietnamese, 1.1% Punjabi

Religions: 49.5% Christian (27.5% Catholic, 3.7% Anglican, 3.2% United Church, 2.2% Christian Orthodox, 1.5% Pentecostal, 11.8% Other), 12.5% Muslim, 3.4% Hindu, 1.7% Buddhist, 1.4% Jewish, 1.3% Sikh, 0.6% Other, 29.3% None
Median income: $50,400 (2020)
Average income: $62,200 (2020)

The riding has elected the following members of Parliament:

Riding associations are the local branches of the national political parties:^[8]