| Locality | Post Code |
|---|---|
| Adel, Dallas | 50003 |
| Berkley, Dallas | 50220 |
| Booneville, Dallas | 50038 |
| Bouton, Dallas | 50039 |
| Cumming, Dallas | 50061 |
| Dallas Center, Dallas | 50063 |
| Dawson, Dallas | 50066 |
| De Soto, Dallas | 50069 |
| Dexter, Dallas | 50070 |
| Earlham, Dallas | 50072 |
| Gardiner, Dallas | 50039 |
| Granger, Dallas | 50109 |
| Jamaica, Dallas | 50128 |
| Linden, Dallas | 50146 |
| Minburn, Dallas | 50167 |
| Moran, Dallas | 50276 |
| Perry, Dallas | 50220 |
| Redfield, Dallas | 50233 |
| The Meadows, Dallas | 50276 |
| Van Meter, Dallas | 50261 |
| Waukee, Dallas | 50263 |
| Wiscotta, Dallas | 50233 |
| Woodward, Dallas | 50276 |
| Yale, Dallas | 50277 |