K2J vs K4A

Ontario

This page does not pick a winner. Every row shows two measurements and the gap between them. There is no score, no tally of which area “wins” more categories, and no overall result — those would be a rating of two places and the people who live in them, assembled by the layout.

Both areas are forward sortation areas, and every figure describes the whole of one. Crime is not shown here: it is reported at the metropolitan level, so for two areas in the same city it is usually the same number twice. It is on each area’s own page, with the geography it describes.

Selected 2021 Census figures for K2J and K4A, with the national figure for scale. The last column states the gap between the two areas as a direction and a size, never as a preference.
Measure	K2J	K4A	Canada	Difference
Median household income	$122,000	$128,000	$84,000	K2J is about the same as K4A
Median after-tax income	$104,000	$108,000	$73,000	K2J is about the same as K4A
Median age	36.8	38.4	41.6	K2J is about the same as K4A
Unemployment rate	10.2%	8.3%	10.3%	K2J is 23% higher than K4A
Low income (LIM-AT)	5.8%	3.8%	11.1%	K2J is 53% higher than K4A
Average household size	3	2.9	2.4	K2J is about the same as K4A

Counts for each area. These describe the place and are not compared as ratios.
Measure	K2J	K4A
Population	81,863	62,125
Private dwellings	27,759	22,000
Land area	32 km²	33 km²

Share of each area’s residents with an amenity within reach, weighted by where people live. A blank is a coverage fact, not a zero.
Amenity	Within	K2J	K4A
Grocery store	1 km walk	86%	74%
Public transit	1 km walk	98%	98%
Park	1 km walk	96%	97%
Pharmacy	1 km walk	44%	56%
Child care	1.5 km walk	99%	99%
Primary school	1.5 km walk	95%	92%
Secondary school	1.5 km walk	58%	69%
Library	1.5 km walk	12%	12%
Health care	3 km drive	100%	100%
Employment	10 km drive	100%	100%

These measure how close an amenity is, never its quality. A school 500 m away is a school 500 m away — nothing here says anything about the school itself.
The proximity index is scaled against all of Canada, where 1 is the single most well-served block in the country and the national average is close to zero. It is useful for comparing places and misleading as a score.

What tenants pay, from CMHC’s survey of purpose-built rental buildings. The two areas may sit in different survey zones, or one may not be surveyed at all — that is a coverage fact and is stated rather than left blank.
Unit	K2J	K4A
Studio	$1,416	not published
1 bedroom	$1,581	$1,917
2 bedrooms	$1,851	$2,181
3+ bedrooms	$2,013	$2,792

Adapted from Canada Mortgage and Housing Corporation, Rental Market Survey, October 2025. This does not constitute an endorsement by Canada Mortgage and Housing Corporation of this product.

The air quality index is a reading at the nearest station, which may be far away — the distance is shown because it decides whether the reading describes the area at all. Facility counts are reported releases within 10 km.
Measure	K2J	K4A
Nearest AQHI station	Ottawa · 19 km	Gatineau · 14 km
Current reading	1.65 — Low risk	not shown
Reporting facilities within 10 km	12	17
Reported releases to air	421 t	767 t

K2J: Measured at Ottawa, 19 km from K2J. The index runs from 1 upward and combines ozone, fine particulate matter and nitrogen dioxide into one health-risk scale.
K4A: Gatineau, 14 km away, is the nearest Air Quality Health Index location, but no current reading could be retrieved from Environment and Climate Change Canada.

This page carries the figures the two areas can be set against each other on. Each area’s own page has the rest — including crime, the boundary map, and every source note and caveat in full.

K2J in full · K4A in full

Source: Census Profile, 2021 Census (98-401-X). Data current as of 2026-08-12. Statistics Canada Open Licence. Each figure describes a whole forward sortation area. Amenity, rent and air figures carry their own sources and vintages on the area pages.