National Capital Region (Canada)

National Capital Region
Région de la capitale nationale
National Capital Region (striped area)
Coordinates: 45°35′23″N 75°50′50″W / 45.58972°N 75.84722°W / 45.58972; -75.84722 (Ottawa – Gatineau (National Capital Region))
CountryCanada
ProvincesOntario
Quebec
Principal citiesOttawa, ON
Gatineau, QC
Area
 • Metro
8,046.99 km2 (3,106.96 sq mi)
Elevation
70–556 m (230–1,824 ft)
Population
 (2021)
1,488,307
 • Estimate 
(2024)
1,660,269
 • Metro density185/km2 (480/sq mi)
GDP
 • Ottawa–Gatineau CMACA$ 89.9 billion (2020)
Time zoneUTC−05:00 (EST)
 • Summer (DST)UTC−04:00 (EDT)
Area codes343, 468, 613, 753, 819, 873

The National Capital Region (NCR) (French: Région de la capitale nationale, pronounced [ʁeʒjɔ̃ d(ə) la kapital nɑsjɔnal]), also known as Canada's Capital Region and Ottawa–Gatineau, is an official federal designation encompassing the Canadian capital of Ottawa, Ontario, the adjacent city of Gatineau, Quebec, and surrounding suburban and exurban areas. Despite its designation, the NCR is not a separate political or administrative entity and falls within the provinces of Ontario and Quebec.

Defined by the National Capital Act (1985), the NCR covers an area of 4,715 km2 (1,820 sq mi), straddling the Ottawa River, which serves as the boundary between Ontario and Quebec. This area is smaller than the Ottawa–Gatineau census metropolitan area (CMA), which spans 8,046.99 km2 (3,106.96 sq mi). Ottawa–Gatineau is the only CMA in Canada that crosses provincial boundaries.