Código Postal Guipúzcoa (ss)
| Código Postal | Ciudad | X | Y |
| 20269 | Abaltzisketa | 43.0478 | -2.1067 |
| 20150 | Aduna | 43.2052 | -2.051 |
| 20170 | Aginaga | 43.2711 | -2.0483 |
| 20211 | Aia | 42.9965 | -2.179 |
| 20870 | Aiastai | 43.208 | -2.4136 |
| 20800 | Aitza | 43.2698 | -2.1559 |
| 20749 | Aizarna | 43.2345 | -2.2268 |
| 20749 | Aizarnazabal | 43.2555 | -2.2353 |
| 20280 | Akartegi | 43.3771 | -1.8008 |
| 20120 | Akerregi | 43.2695 | -1.9618 |
| 20495 | Albiztur | 43.1296 | -2.1364 |
| 20267 | Aldaba | 43.1079 | -2.135 |
| 20280 | Alde zaharra | 43.3651 | -1.8065 |
| 20217 | Alegia | 43.0502 | -2.2799 |
| 20494 | Alkiza | 43.1724 | -2.1086 |
| 20200 | Altamira | 43.0432 | -2.2039 |
| 20248 | Altzaga | 43.0661 | -2.1551 |
| 20180 | Altzibar | 43.2929 | -1.8577 |
| 20268 | Altzo | 43.0353 | -2.0977 |
| 20809 | Altzola | 43.2335 | -2.1471 |
| 20150 | Amasa | 43.1834 | -2.046 |
| 20268 | Amezketa | 43.0668 | -2.0819 |
| 20280 | Amute kosta | 43.3626 | -1.8059 |
| 20809 | Andatza | 43.2347 | -2.1249 |
| 20140 | Andoain | 43.2159 | -2.026 |
| 20709 | Anduaga | 43.0759 | -2.2662 |
| 20578 | Angiozar | 43.1133 | -2.4726 |
| 20270 | Anoeta | 43.1635 | -2.072 |
| 20018 | Añorga | 43.2825 | -2.0027 |
| 20200 | Antzizar | 43.0462 | -2.2146 |
| 20577 | Antzuola | 43.0979 | -2.3788 |
| 20550 | Aozaratza | 43.0247 | -2.4861 |
| 20530 | Apotzaga | 43.03 | -2.5244 |
| 20550 | Apotzaga etxebarri | 43.0285 | -2.4975 |
| 20248 | Arama | 43.0631 | -2.1653 |
| 20567 | Arantzazu | 42.9784 | -2.4004 |
| 20567 | Araotz | 42.993 | -2.4549 |
| 20738 | Aratz erreka | 43.1332 | -2.275 |
| 20218 | Aratz matxinbenta | 43.1077 | -2.2414 |
| 20550 | Areantza | 43.0165 | -2.4858 |
| 20550 | Aretxabaleta | 43.0281 | -2.4976 |
| 20737 | Argisain | 43.1066 | -2.1753 |
| 20550 | Arkarazo | 43.0227 | -2.5042 |
| 20280 | Arkolla | 43.353 | -1.8063 |
| 20180 | Arragua | 43.3101 | -1.8768 |
| 20500 | Arrasate/mondragon | 43.0664 | -2.5041 |
| 20600 | Arrate | 43.1938 | -2.4377 |
| 20218 | Arriaran | 43.059 | -2.2384 |
| 20215 | Arrieta | 42.9749 | -2.3042 |
| 20720 | Arrietamendi | 43.1891 | -2.2939 |
| 20749 | Arroa bekoa | 43.2795 | -2.2684 |
| 20749 | Arroa goikoa | 43.2531 | -2.2734 |
| 20809 | Arrutiegia | 43.2463 | -2.1455 |
| 20759 | Artadi | 43.2864 | -2.2396 |
| 20737 | Artzalluz | 43.1803 | -2.1967 |
| 20830 | Arzainerreka | 43.3002 | -2.3958 |
| 20808 | Askizu | 43.3021 | -2.2287 |
| 20159 | Asteasu | 43.1939 | -2.0967 |
| 20115 | Astigarraga | 43.2819 | -1.9454 |
| 20218 | Astigarreta | 43.0832 | -2.2385 |
| 20830 | Astigarribia | 43.2799 | -2.3756 |
| 20211 | Ataun | 43.0063 | -2.1772 |
| 20160 | Atsobakar | 43.2751 | -2.0198 |
| 20400 | Auzotxikia | 43.1287 | -2.1026 |
| 20720 | Azkoitia | 43.1772 | -2.3106 |
| 20870 | Azkue | 43.2028 | -2.4223 |
| 20730 | Azpeitia | 43.1828 | -2.2654 |
| 20850 | Azpilgoeta | 43.2554 | -2.3872 |
| 20220 | Aztiria | 43.0324 | -2.3105 |
| 20259 | Baliarrain | 43.0679 | -2.1289 |
| 20215 | Barrenaldea | 42.9904 | -2.2796 |
| 20570 | Basalgo | 43.1433 | -2.4307 |
| 20200 | Beasain | 43.0514 | -2.2008 |
| 20200 | Beasainmendi | 43.0675 | -2.1985 |
| 20159 | Beballara | 43.1852 | -2.0869 |
Final 75 primeros resultados (295 Ciudades en total)