Bryan McAllister’s personal reference notebook
July 30, 2026Short & citedBlog
Civic Viewpoint.
A quiet encyclopedia with a personal desk
Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Field Notes • Canada Places

Nepean, Ontario

Nepean is a former city and township in eastern Ontario, Canada, now part of the City of Ottawa.

Updated July 30, 20261 min readCited sources

Nepean is a former city in eastern Ontario, now part of Ottawa. It remains a commonly used name for the area west of Ottawa's inner core.

What it is

Nepean is a large community within the City of Ottawa, located west of the downtown core. It was an independent city from 1978 until 2001, when it was amalgamated into the new Ottawa. The name is still widely used for the area, and it appears on maps and addresses.

Why it matters

Nepean's history traces back to 1792 as a township, and it grew into a city by 1978. Its 2001 merger into Ottawa was part of a larger municipal consolidation that reshaped the capital region. The area continues to have its own identity, with local institutions and community groups.

Key details

The 2021 Census recorded a population of about 186,593. Nepean is known for suburban neighbourhoods, parks, and major landmarks such as Algonquin College, the Nepean Sportsplex, and the Nepean National Equestrian Park. The area is named after Sir Evan Nepean, a British official.

In short

  • Nepean is now an area within Ottawa, not a separate city.
  • It was incorporated as a city in 1978 and merged into Ottawa in 2001.
  • The name honours Sir Evan Nepean, a British government official.
  • It is home to Algonquin College and the Nepean Sportsplex.
Canadian angle

Nepean is a major Ottawa-area community in Ontario and part of the history of municipal consolidation in Canada’s capital region.

Quick questions

Where is Nepean, Ontario?
Nepean is in eastern Ontario, west of Ottawa’s inner core, and is now part of the City of Ottawa.
When did Nepean become part of Ottawa?
Nepean was amalgamated into the new City of Ottawa in 2001.
What is the population of Nepean?
The population is about 186,593 according to the 2021 Census.

Sources

  1. Wikipedia — https://en.wikipedia.org/wiki/Nepean,_Ontario
    Supports: Former city status, amalgamation into Ottawa in 2001, location west of Ottawa's inner core, population, township history, naming after Sir Evan Nepean
  2. The Canadian Encyclopedia — https://thecanadianencyclopedia.ca/en/article/nepean
    Supports: Historical overview, 1978–2001 city status, merger into Ottawa, settlement history, annexations, economic and institutional development
  3. Natural Resources Canada — https://geonames.nrcan.gc.ca/search-place-names/unique?id=FDZDF
    Supports: Official place-name record and coordinates for Nepean
  4. Wikipedia — https://fr.wikipedia.org/wiki/Nepean_(Ontario)
    Supports: Population figures and municipal history, including amalgamation year and former mayors