| Locality | Postal Code |
|---|---|
| Kamazuka (香取市) | 287-0032 |
| Kamikobori (香取市) | 289-0306 |
| Kamiogawa (香取市) | 287-0046 |
| Kanno (香取市) | 289-0408, 287-0036 |
| Karike (香取市) | 287-0104 |
| Katano (香取市) | 287-0044 |
| Katori (香取市) | 287-0017 |
| Kawagashira (香取市) | 289-0334 |
| Kawajiri (香取市) | 287-0067 |
| Kawakami (香取市) | 289-0403 |
| Kayada (香取市) | 287-0027 |
| Kinochi (香取市) | 289-0337 |
| Kinochimushihatakamikoboriiriaichio (香取市) | 289-0308 |
| Kirizaku (香取市) | 289-0422 |
| Kita (香取市) | 287-0002 |
| Kitaharachishinden (香取市) | 289-0335 |
| Kogaijima (香取市) | 287-0823 |
| Kokanzu (香取市) | 287-0805 |
| Kokuno (香取市) | 287-0826 |
| Komenoi (香取市) | 289-0401 |
| Koya (香取市) | 289-0404 |
| Kubo (香取市) | 289-0327 |
| Kumiage (香取市) | 287-0022 |
| Makino (香取市) | 287-0033 |
| Mashita (香取市) | 289-0307 |
| Minamiharachishinden (香取市) | 289-0332 |