| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Groningen | cnl00016298 | Netherlands | 6.54944444444444 | 53.2194444444444 | |
| Groningen [non-CERL] | — | — | — | — | |
| Groß-Umstadt | — | Germany | 8.933333 | 49.866667 | |
| Grosio | cnl00039109 | — | 10.2741666666667 | 46.2977777777778 | |
| Großneuhausen | cnl00031819 | — | — | — | |
| Grossenhain | cnl00009683 | Germany | 13.65 | 51.28 | |
| Grouw | cnl00022726 | Netherlands | 5.838861 | 53.094944 | |
| Grünberg | cnl00030251 | Poland | 15.4494444444444 | 51.9694444444444 | |
| Grund | cnl00043659 | — | — | — | |
| Guadalajara | cnl00009729 | Spain | -103.349722222222 | 20.66 | |
| Guadeloupe | cnl00022612 | France | -61.583333 | 16.25 | |
| Guastalla | cnl00009732 | Italy | 10.65 | 44.92 | |
| Gubbio | cnl00009733 | Italy | 12.58 | 43.35 | |
| Guerchy | cnl00020389 | France | 3.4408 | 47.8939 | |
| Guéret | cnl00009737 | France | 1.87 | 46.17 | |
| Guildford | cnl00009743 | England | -0.57 | 51.22 | |
| Guise | cnl00021061 | France | 9.2 | 45.46 | |
| Guitres | cnl00019772 | — | — | — | |
| Gumbinnen | cnl00000534 | Russia | 22.1830555555556 | 54.5830555555556 | |
| Gundelfingen a.d. Donau | cnl00036408 | Germany | 10.3722222222222 | 48.5533333333333 | |
| Gunzenhausen | cnl00016071 | — | 10.75 | 49.1 | |
| Güstrow | cnl00009770 | Germany | 12.1694444444444 | 53.7994444444444 | |
| Guzów | cnl00023754 | — | — | — | |
| Głębowice | — | Poland | 16.735663724 | 51.442164898 | |
| Głogów | cnl00034231 | — | 16.1 | 51.67 |