| Postal Code | Area | |
|---|---|---|
| 287-0001 | Sawararo (佐原ロ) | View |
| 287-0002 | Kita (北) | View |
| 287-0003 | Sawarai (佐原イ) | View |
| 287-0004 | Iwagasakidai (岩ケ崎台) | View |
| 287-0005 | Sawaraho (佐原ホ) | View |
| 287-0006 | Shinoharai (篠原イ) | View |
| 287-0011 | Tsunomiya (津宮) | View |
| 287-0012 | Okurayorogo (大倉丁子) | View |
| 287-0013 | Okura (大倉) | View |
| 287-0014 | Tada (多田) | View |
| 287-0015 | Yoshiwara (吉原) | View |
| 287-0016 | Niichiba (新市場) | View |
| 287-0017 | Katori (香取) | View |
| 287-0018 | Yorogo (丁子) | View |
| 287-0021 | Shimoono (下小野) | View |
| 287-0022 | Kumiage (九美上) | View |
| 287-0023 | Ichiyama (伊地山) | View |
| 287-0024 | Fukuda (福田) | View |
| 287-0025 | Motoyahagi (本矢作) | View |
| 287-0026 | One (大根) | View |