| Postal Code | Locality / District | Administrative Area | Coordinates |
|---|---|---|---|
| Bayansayr | Baatsagaan District · Bayanhongor Aymag | 45.55529, 99.43314 | |
| Baatsagaan | Baatsagaan District · Bayanhongor Aymag | 45.55836, 99.44131 | |
| Höhbürd | Bayan-Ovoo District · Bayanhongor Aymag | 46.28575, 100.44834 | |
| Bayan-Ovoo | Bayan-Ovoo District · Bayanhongor Aymag | 46.28877, 100.45668 | |
| Bulgan | Bayan-Öndör · Bayanhongor Aymag | 44.78333, 98.65 | |
| Amar Buyantayn Hüryee | Bayan-Öndör · Bayanhongor Aymag | 44.61667, 98.7 | |
| Bayanbulag | Bayanbulag District · Bayanhongor Aymag | 46.80981, 98.09006 | |
| Tegshin Bayantayn Hüryee | Bayanbulag District · Bayanhongor Aymag | 46.7, 97.91667 | |
| Sangiin Dalay Hüryee | Bayanbulag District · Bayanhongor Aymag | 46.95, 97.76667 | |
| Hadatayn Hüryee | Bayanbulag District · Bayanhongor Aymag | 46.9, 98.16667 | |
| Bayan Hongoriin | Bayanbulag District · Bayanhongor Aymag | 46.58333, 97.65 | |
| Örgön | Bayangovĭ · Bayanhongor Aymag | 44.73637, 100.39135 | |
| Bayan Hoboriin Horshoo | Bayangovĭ · Bayanhongor Aymag | 44.53333, 100.13333 | |
| Bayanhongor | Bayanhongor District · Bayanhongor Aymag | 46.19444, 100.71806 | |
| Bayanhongor North | Bayanhongor District · Bayanhongor Aymag | 46.19758, 100.72619 | |
| Bayanhongor Sum | Bayanhongor Sum District · Bayanhongor Aymag | 46.1914, 100.70226 | |
| Bayanhongor Sum North | Bayanhongor Sum District · Bayanhongor Aymag | 46.1994, 100.71026 | |
| Hatansuudal | Bayanlig · Bayanhongor Aymag | 44.54595, 100.82788 | |
| Tsagaan Tologoy | Bayanlig · Bayanhongor Aymag | 44.53333, 100.7 | |
| Gurvan-tes | Bayanlig · Bayanhongor Aymag | 44.4, 101.56667 | |
| Sümeiin Hiid | Bayantsagaan District · Bayanhongor Aymag | 45.16667, 98.98333 | |
| Bayantsagaan | Bayantsagaan District · Bayanhongor Aymag | 45.01942, 98.93628 | |
| Horiult | Bogd District · Bayanhongor Aymag | 45.2, 100.76667 | |
| Bogd | Bogd District · Bayanhongor Aymag | 45.20407, 100.77838 | |
| Buyant | Buutsagaan · Bayanhongor Aymag | 46.1664, 98.69173 | |
| Yumiin Jisa | Buutsagaan · Bayanhongor Aymag | 46.2, 99.03333 | |
| Mandaliin Jisa | Buutsagaan · Bayanhongor Aymag | 46.16667, 98.83333 | |
| Dzüün Jisa | Buutsagaan · Bayanhongor Aymag | 46.33333, 99.08333 | |
| Dara Eheiin Jisa | Buutsagaan · Bayanhongor Aymag | 46.15, 98.68333 | |
| Bayanbürd | Buutsagaan · Bayanhongor Aymag | 46.36667, 99.03333 | |
| Dzadgay | Bömbögör · Bayanhongor Aymag | 46.21061, 99.59862 | |
| Taryaanii Jisa | Bömbögör · Bayanhongor Aymag | 46.05, 99.16667 | |
| Dashi Galdan Jisa | Bömbögör · Bayanhongor Aymag | 46.08333, 99.33333 | |
| Choyiin Jisa | Bömbögör · Bayanhongor Aymag | 46.41667, 99.36667 | |
| Dzag | Dzag District · Bayanhongor Aymag | 46.94229, 99.16689 | |
| Ulaan Tologoyn Jisa | Dzag District · Bayanhongor Aymag | 46.58333, 99.08333 | |
| Erdenetsogt | Erdenetsogt District · Bayanhongor Aymag | 46.41845, 100.82239 | |
| Tüyin Goliin Hüryee | Erdenetsogt District · Bayanhongor Aymag | 46.41667, 100.8 | |
| Lamaiin Gegeenii Hüryee | Erdenetsogt District · Bayanhongor Aymag | 46.3, 100.98333 | |
| Dayaan Hiid | Erdenetsogt District · Bayanhongor Aymag | 46.45, 100.76667 | |
| Bayan Dzürihe Suma | Erdenetsogt District · Bayanhongor Aymag | 46.3, 101.0 | |
| Bayanhoshuu | Galuut · Bayanhongor Aymag | 46.70197, 100.1433 | |
| Mandal | Galuut · Bayanhongor Aymag | 46.83333, 100.05 | |
| Darhan Guunii Hüryee | Galuut · Bayanhongor Aymag | 46.66667, 100.33333 | |
| Höviyn Am | Gurvanbulag · Bayanhongor Aymag | 47.23123, 98.5714 | |
| Öldzeyteyn Horshoo | Gurvanbulag · Bayanhongor Aymag | 47.3, 98.58333 | |
| Hara Usanii Hüryee | Gurvanbulag · Bayanhongor Aymag | 47.3, 98.53333 | |
| Bilüüteyn Goliin Hiid | Gurvanbulag · Bayanhongor Aymag | 47.06667, 98.3 | |
| Delgermörön | Hüreemaral · Bayanhongor Aymag | 46.40946, 98.28712 | |
| Tsorjiin Hüryee | Hüreemaral · Bayanhongor Aymag | 46.51667, 98.4 | |
| Olon Bulagiin Bayshing | Hüreemaral · Bayanhongor Aymag | 46.53333, 98.61667 | |
| Jargalant | Jargalant District · Bayanhongor Aymag | 47.15, 99.63333 | |
| Ulaan Chuluutayn Örtöö | Jargalant District · Bayanhongor Aymag | 47.13333, 99.7 | |
| Baydrag | Jargalant District · Bayanhongor Aymag | 47.03333, 99.5 | |
| Baydaragiin Hüryee | Jargalant District · Bayanhongor Aymag | 47.28333, 99.66667 | |
| Bodĭ | Jinst District · Bayanhongor Aymag | 45.41171, 100.574 | |
| Jinst | Jinst District · Bayanhongor Aymag | 45.40958, 100.582 | |
| Ulaan-Uul | Olziit · Bayanhongor Aymag | 46.0674, 100.81724 | |
| Örtöögiin Dugang | Olziit · Bayanhongor Aymag | 46.11667, 100.8 | |
| Dzalaa | Shinejinst · Bayanhongor Aymag | 44.53333, 99.26667 | |
| Tu-tzu-han-su-hai | Shinejinst · Bayanhongor Aymag | 42.75, 98.8 | |
| Öldziyt | Öldziyt District · Bayanhongor Aymag | 46.06227, 100.8169 | |
| Öldziyt North | Öldziyt District · Bayanhongor Aymag | 46.07027, 100.8249 |
Postal code prefix 12 in Mongolia covers 63 localities (primarily in Bayanhongor Aymag, including Bayansayr), spanning from 120000 to 122101.
There are 63 active postal codes starting with 12 in Mongolia. Use the interactive directory table above to filter by locality or copy any code in one click.