| Place | Post Code |
|---|---|
| 山田峠 (Yamadatoge, Fukuoka) | 811-4223 |
| 吉木 (Yoshiki, Fukuoka) | 811-4211 |
| 吉木東 (Yoshikihigashi, Fukuoka) | 811-4241 |
| 吉木西 (Yoshikinishi, Fukuoka) | 811-4242 |
| 百合ケ丘 (Yurigaoka, Fukuoka) | 811-4229 |
| Postal Codes in Onga | |
|---|---|
| Ashiya (芦屋町) | |
| Mizumaki (水巻町) | |
| Okagaki (岡垣町) | |
| Onga (遠賀町) | |