K1 — 20 códigos em 20 localidades (Canadá).
| Código postal | Localidade / Distrito | Região / Município | Coordenadas |
|---|---|---|---|
| Government of Canada Ottawa and Gatineau offices | Ottawa · Ontario | 45.4207, -75.7023 | |
| Gloucester (Blackburn Hamlet / Pine View) | Gloucester · Ontario | 45.4284, -75.5875 | |
| Gloucester (West Orleans) | Gloucester · Ontario | 45.4677, -75.5399 | |
| Orleans (Queenswood) | Ontario | 45.4771, -75.5046 | |
| Ottawa (Riverview / Hawthorne) | Ottawa · Ontario | 45.3548, -75.5773 | |
| Ottawa (Alta Vista) | Ottawa · Ontario | 45.3876, -75.6593 | |
| Gloucester (Beacon Hill / Cyrville) | Gloucester · Ontario | 45.4519, -75.6036 | |
| Ottawa (Overbrook) | Ottawa · Ontario | 45.4448, -75.6431 | |
| Ottawa (Vanier) | Ottawa · Ontario | 45.44, -75.663 | |
| Ottawa (Rockcliffe Park / New Edinburgh) | Ottawa · Ontario | 45.4491, -75.6818 | |
| Ottawa (Lower Town / Sandy Hill / University of Ottawa) | Ottawa · Ontario | 45.4289, -75.6844 | |
| Ottawa (Parliament Hill) | Ottawa · Ontario | 45.4225, -75.7026 | |
| Ottawa (West Downtown area) | Ottawa · Ontario | 45.4123, -75.7108 | |
| Ottawa (The Glebe / Ottawa South / Ottawa East) | Ottawa · Ontario | 45.399, -75.6871 | |
| Gloucester (Blossom Park / Hunt Club East / Leitrim) | Gloucester · Ontario | 45.3295, -75.6156 | |
| Ottawa (Riverside Park / Hunt Club West / Riverside South / YOW) | Ottawa · Ontario | 45.3281, -75.6719 | |
| Gloucester (South Orleans) | Gloucester · Ontario | 45.4365, -75.5158 | |
| Gloucester South | Gloucester · Ontario | 45.2756, -75.6283 | |
| Ottawa West | Ottawa · Ontario | 45.4023, -75.7329 | |
| Ottawa (Westboro) | Ottawa · Ontario | 45.3867, -75.7405 |