| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Shimoodawa (真岡市) | 321-4413 |
| Postal/ZIP Codes in Shimoonuma (真岡市) | 321-4357 |
| Postal/ZIP Codes in Shimoozo (真岡市) | 321-4543 |
| Postal/ZIP Codes in Shimosaginoya (真岡市) | 321-4414 |
| Postal/ZIP Codes in Sorimachi (真岡市) | 321-4515 |
| Postal/ZIP Codes in Sugama (真岡市) | 321-4313 |
| Postal/ZIP Codes in Tajima (真岡市) | 321-4404 |
| Postal/ZIP Codes in Takada (真岡市) | 321-4511 |
| Postal/ZIP Codes in Takasecho (真岡市) | 321-4341 |
| Postal/ZIP Codes in Tamachi (真岡市) | 321-4325 |
| Postal/ZIP Codes in Terabun (真岡市) | 321-4354 |
| Postal/ZIP Codes in Terakubo (真岡市) | 321-4368 |
| Postal/ZIP Codes in Terauchi (真岡市) | 321-4345 |
| Postal/ZIP Codes in Tokoji (真岡市) | 321-4309 |
| Postal/ZIP Codes in Tsuruta (真岡市) | 321-4302 |
| Postal/ZIP Codes in Wakatabi (真岡市) | 321-4352, 321-4551 |
| Postal/ZIP Codes in Washinosu (真岡市) | 321-4538 |
| Postal/ZIP Codes in Yagaishinden (真岡市) | 321-4547 |
| Postal/ZIP Codes in Yagioka (真岡市) | 321-4334 |
| Postal/ZIP Codes in Yanagibayashi (真岡市) | 321-4365 |
| Postal/ZIP Codes in Yokota (真岡市) | 321-4501 |