37 cities
| City | 2025 Pop. ↓ |
|---|---|
| Glasgow | 1,718,940 |
| Gloucester | 163,212 |
| Grimsby | 134,160 |
| Gillingham | 101,187 |
| Grays | 89,755 |
| Gateshead | 77,649 |
| Guildford | 71,873 |
| Gosport | 70,793 |
| Great Yarmouth | 63,434 |
| Gravesend | 54,263 |
| Grantham | 43,833 |
| Great Sankey | 43,793 |
| Greenock | 43,690 |
| Glenrothes | 39,100 |
| Greenford | 38,000 |
| Great Malvern | 36,770 |
| Glossop | 33,243 |
| Golborne | 24,021 |
| Gosforth | 23,975 |
| Godalming | 22,689 |
| Guiseley | 21,000 |
| Gainsborough | 20,842 |
| Goole | 20,810 |
| Gerrards Cross | 20,633 |
| Gorseinon | 20,581 |
| Great Wyrley | 19,193 |
| Grove | 18,312 |
| Gelligaer | 17,376 |
| Grangemouth | 17,280 |
| Guisborough | 16,979 |
| Garforth | 14,838 |
| Galashiels | 12,660 |
| Grange Hill | 12,449 |
| Giffnock | 12,070 |
| Great Harwood | 11,467 |
| Great Bookham | 11,000 |
| Gourock | 10,570 |