K9J vs K9K

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 K9J and K9K, 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	K9J	K9K	Canada	Difference
Median household income	$72,500	$98,000	$84,000	K9J is 26% lower than K9K
Median after-tax income	$65,500	$86,000	$73,000	K9J is 24% lower than K9K
Median age	44	47.2	41.6	K9J is 7% lower than K9K
Unemployment rate	13.4%	12.2%	10.3%	K9J is 10% higher than K9K
Low income (LIM-AT)	12.3%	5.8%	11.1%	K9J is 2.1× higher than K9K
Average household size	2.3	2.6	2.4	K9J is 12% lower than K9K

How each area sits against the city or province around it — a different geography on each side, named in every cell. Read down a column, not across: the two columns are measured against different places and a bigger gap in one says nothing about the other.
Measure	K9J	K9K
Median household income	8% lower than Peterborough	24% higher than Peterborough
Median after-tax income	7% lower than Peterborough	22% higher than Peterborough
Median age	about the same as Peterborough	about the same as Peterborough
Unemployment rate	about the same as Peterborough	6% lower than Peterborough
Low income (LIM-AT)	14% higher than Peterborough	46% lower than Peterborough
Average household size	about the same as Peterborough	8% higher than Peterborough

K9J is measured against Peterborough, the metropolitan area holding 100% of its residents.
K9K is measured against Peterborough, the metropolitan area holding 100% of its residents.

Counts for each area. These describe the place and are not compared as ratios.
Measure	K9J	K9K
Province	Ontario	Ontario
Population	44,547	13,359
Private dwellings	19,998	5,226
Land area	264 km²	10 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	K9J	K9K
Grocery store	1 km walk	58%	85%
Public transit	1 km walk	4%	0%
Park	1 km walk	79%	92%
Pharmacy	1 km walk	36%	51%
Child care	1.5 km walk	86%	100%
Primary school	1.5 km walk	75%	63%
Secondary school	1.5 km walk	72%	74%
Library	1.5 km walk	29%	0%
Health care	3 km drive	95%	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.

CMHC does not survey a rental zone covering either K9J or K9K. The survey covers centres of 10,000 people and up, so there is nothing published for either area.

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	K9J	K9K
Nearest AQHI station	Peterborough · 0.6 km	Peterborough · 3.4 km
Current reading	1 — Low risk	1 — Low risk
Reporting facilities within 10 km	13	11
Reported releases to air	69 t	53 t

K9J: Measured at Peterborough, 0.6 km from K9J. The index runs from 1 upward and combines ozone, fine particulate matter and nitrogen dioxide into one health-risk scale.
K9K: Measured at Peterborough, 3.4 km from K9K. The index runs from 1 upward and combines ozone, fine particulate matter and nitrogen dioxide into one health-risk scale.

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.

K9J in full · K9K 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.