| Enumerated Area | pre1851 | 1851 | 1861 | 1871 | 1881 | 1891 | 1901 | 1911 |
| Kagawong Village | ALG | ALG | ||||||
| Kaladar Twp | LnA | LnA | LnA | LnA | LnA | LnA | ||
| Kalmar Twp | ALG | |||||||
| Kaministikwia | ALG | TBRR | ||||||
| Kamogomi | ALG | |||||||
| Kars | ALG | |||||||
| Kars Village | CAR | |||||||
| Kashabowie | ALG | |||||||
| Kawene | TBRR | |||||||
| Keady Village | GRY | |||||||
| Kearney Twp | PSD | |||||||
| Keefer | ALG | |||||||
| Keene Village | PET | |||||||
| Keewatin Town | TBRR | |||||||
| Keewatin Twp | ALG | ALG | ||||||
| Kelvin Hamlet | NRF | |||||||
| Kelvin Village | BRA | |||||||
| Kemble Village | GRY | |||||||
| Kemptville Village | GVL | GVL | GVL | GVL | GVL | GVL | ||
| Kendall Village | DUR | |||||||
| Kenmore Village | RUS | |||||||
| Kennebec Twp | FRO | LnA | LnA | LnA | LnA | FRO | ||
| Kennedy | NIP | |||||||
| Kenora Bay | TBRR | |||||||
| Kenora Town | TBRR | |||||||
| Kent Bridge | KEN | |||||||
| Kenyon Twp | GLE | GLE | GLE | GLE | GLE | GLE | GLE | |
| Kepler Village | FRO | |||||||
| Keppel Twp | GRY | GRY | GRY | GRY | GRY | GRY | ||
| Kerns Twp | NIP | |||||||
| Kerwood Village | MID | |||||||
| Keswick Village | YOR | |||||||
| Kettle Point Indian Reserve | LAM | |||||||
| Kilbride Village | HTN | |||||||
| Killaloe Village | REN | |||||||
| Killarney Twp | ALG | ALG | ALG | NIP | ALG | |||
| Killarney Village | NIP | ALG | ||||||
| Kilsyth Village | GRY | |||||||
| Kimberley Village | GRY | |||||||
| Kincardine Town | BRU | BRU | BRU | BRU | BRU | |||
| Kincardine Twp | BRU | BRU | BRU | BRU | BRU | BRU | BRU | |
| King City | YOR | |||||||
| King Twp | YOR | YOR | YOR | YOR | YOR | YOR | YOR | YOR |
| Kingsford Twp | TBRR | |||||||
| Kingston City | FRO | FRO | FRO | FRO | FRO | FRO | FRO | |
| Kingston Penitentiary | FRO | |||||||
| Kingston Twp | FRO | FRO | FRO | FRO | FRO | FRO | FRO | |
| Kingsville Village | ESS | ESS | ESS | ESS | ||||
| Kinloss Twp | BRU | BRU | BRU | BRU | BRU | BRU | BRU | |
| Kinloss Village | BRU | |||||||
| Kinlough Village | BRU | |||||||
| Kinmount Village | PET | |||||||
| Kinmount Village | VIC | |||||||
| Kinsale Village | ONT | |||||||
| Kippen | HUR | |||||||
| Kirkpatrick Twp | NIP | NIP | NIP | |||||
| Kirkton | PER | |||||||
| Kirkwood Twp | ALG | ALG | ALG | |||||
| Kitley Twp | LEE | LEE | LEE | LEE | LEE | LEE | LEE | LEE |
| Kleinburg | YOR | |||||||
| Knight | NIP | |||||||
| Komoka | MID | |||||||
| Korah Twp | ALG | ALG | ALG | ALG | ||||
| Kurtzville | PER |