| Code postal | Ville | X | Y |
 | 31481 | Zuza/zutza | 42.7662 | -1.3849 |
| | 31292 | Zurucuain/zurukuain | 42.6906 | -1.9968 |
| | 31699 | Zuriain | 42.8808 | -1.5663 |
| | 31484 | Zunzarren | 42.8487 | -1.4506 |
| | 31284 | Zuñiga | 42.6928 | -2.3007 |
| | 31470 | Zulueta | 42.7463 | -1.5788 |
| | 31868 | Zuhatzu | 42.9095 | -1.8757 |
| | 31710 | Zugarramurdi | 43.2685 | -1.542 |
| | 31241 | Zufia | 42.6672 | -2.1052 |
| | 31272 | Zudaire | 42.7735 | -2.1337 |
| | 31630 | Zubiri | 42.9316 | -1.504 |
| | 31746 | Zubieta | 43.1235 | -1.7437 |
| | 31241 | Zubielqui | 42.6804 | -2.0686 |
| | 31421 | Zuazu | 42.7144 | -1.4743 |
| | 31715 | Zuaztoi | 43.1841 | -1.4932 |
| | 31481 | Zuasti | 42.766 | -1.3854 |
| | 31720 | Zozaia | 43.1393 | -1.6077 |
| | 31422 | Zoroquiain | 42.7398 | -1.4975 |
| | 31192 | Zolina | 42.7671 | -1.5846 |
| | 31180 | Zizur mayor/zizur nagusia | 42.7867 | -1.6908 |
| | 31809 | Ziordia | 42.8707 | -2.2286 |
| | 31639 | Zilbeti | 42.9841 | -1.4659 |
| | 31796 | Zigaurre | 43.1172 | -1.5495 |
| | 31796 | Ziga | 43.1157 | -1.567 |
| | 31799 | Zenotz | 42.9233 | -1.6602 |
| | 31792 | Zeberi | 43.1315 | -1.6425 |
| | 31869 | Zarrantz | 42.9455 | -1.7831 |
| | 31190 | Zariquiegui | 42.7485 | -1.7241 |
| | 31481 | Zarikieta | 42.765 | -1.3867 |
| | 31438 | Zandueta | 42.8793 | -1.3781 |
| | 31799 | Zandio | 42.9242 | -1.659 |
| | 31840 | Zamartze | 42.9229 | -2 |
| | 31484 | Zaldaiz | 42.8411 | -1.4485 |
| | 31484 | Zalba | 42.836 | -1.449 |
| | 31770 | Zalain zoko | 43.2485 | -1.7006 |
| | 31789 | Zalain | 43.2744 | -1.7102 |
| | 31770 | Zala | 43.2493 | -1.7002 |
| | 31174 | Zabalza/zabaltza | 42.7727 | -1.8042 |
| | 31448 | Zabalza | 42.7595 | -1.2563 |
| | 31470 | Zabalegui | 42.7282 | -1.574 |
| | 31699 | Zabaldika | 42.8492 | -1.5833 |
| | 31422 | Zabalceta | 42.731 | -1.5093 |
| | 31292 | Zabal | 42.711 | -2.0019 |
| | 31410 | Yesa | 42.6199 | -1.203 |
| | 31485 | Yelz | 42.7986 | -1.5131 |
| | 31470 | Yarnoz | 42.7301 | -1.5732 |
| | 31789 | Xantelerreka/elzaurdia | 43.2766 | -1.7086 |
| | 31283 | Viloria | 42.7109 | -2.2356 |
| | 31481 | Villaveta/billabeta | 42.7655 | -1.386 |
| | 31610 | Villava | 42.8308 | -1.607 |
| | 31132 | Villatuerta | 42.6615 | -1.9922 |
| | 31176 | Villanueva de yerri/hiriberri deierri | 42.7381 | -1.9493 |
| | 31481 | Villanueva de longuida/hiriberri longida | 42.766 | -1.3864 |
| | 31438 | Villanueva | 42.8783 | -1.3779 |
| | 31242 | Villamayor de monjardin | 42.6298 | -2.1049 |
| | 31330 | Villafranca | 42.2796 | -1.746 |
| | 31291 | Viguria | 42.7575 | -1.9089 |
| | 31176 | Vidaurre | 42.7782 | -1.9119 |
| | 31413 | Vidangoz/bidankoze | 42.8006 | -1.013 |
| | 31230 | Viana | 42.5149 | -2.3725 |
| | 31473 | Vesolla | 42.6695 | -1.4482 |
| | 31254 | Vergalijo | 42.4717 | -1.8061 |
| | 31514 | Valtierra | 42.1965 | -1.6358 |
| | 31891 | Uztegi | 43.0252 | -2.0069 |
| | 31418 | Uztarroz/uztarroze | 42.8849 | -0.9264 |
| | 31395 | Uzquita | 42.6147 | -1.5985 |
| | 31133 | Uterga | 42.7102 | -1.7592 |
| | 31454 | Usun | 42.6657 | -1.2196 |
| | 31451 | Ustes | 42.752 | -1.0997 |
| | 31486 | Ustarroz | 42.8253 | -1.5314 |
| | 31439 | Usoz/ usotz | 42.8901 | -1.2902 |
| | 31193 | Usi | 42.908 | -1.7023 |
| | 31639 | Usetxi | 42.9648 | -1.5049 |
| | 31451 | Uscarres/uskartze | 42.802 | -1.0941 |
| | 31416 | Urzainqui/urzainki | 42.746 | -1.0349 |