Colorado Cities
- Galatea, CO
- Galena, CO
- Galeton, CO
- Galien, CO
- Garcia, CO
- Garden City, CO
- Gardner, CO
- Garfield, CO
- Garo, CO
- Gary, CO
- Gaskil, CO
- Gates, CO
- Gateview, CO
- Gateway, CO
- Gato, CO
- Gem Village, CO
- Genesee, CO
- Genoa, CO
- Georgetown, CO
- Gerrard, CO
- Giddings, CO
- Gilcrest, CO
- Gill, CO
- Gilman, CO
- Gilpin, CO
- Gilson Gulch, CO
- Gilsonite, CO
- Glade Park, CO
- Glen Comfort, CO
- Glen Cove, CO
- Glen Echo, CO
- Glen Eden, CO
- Glen Eyrie, CO
- Glen Haven, CO
- Glendale, CO
- Glendevey, CO
- Gleneagle, CO
- Glenelk, CO
- Glenisle, CO
- Glentivar, CO
- Glenwood Springs, CO
- Golconda, CO
- Gold Hill, CO
- Golden, CO
- Goldfield, CO
- Goodale, CO
- Gooding, CO
- Goodnight, CO
- Goodpasture, CO
- Goodrich, CO
- Gordon, CO
- Gothic, CO
- Gould, CO
- Gowanda, CO
- Graft, CO
- Granada, CO
- Granby, CO
- Grand Junction, CO
- Grand Lake, CO
- Grand Mesa, CO
- Grand View Estates, CO
- Grandview, CO
- Granite, CO
- Grant, CO
- Graymont, CO
- Greeley, CO
- Green Mountain Falls, CO
- Green Valley Acres, CO
- Greenhorn, CO
- Greenland, CO
- Greenwood, CO
- Greenwood Village, CO
- Gresham, CO
- Greystone, CO
- Griff, CO
- Griffin, CO
- Grizzly, CO
- Grote, CO
- Grover, CO
- Guadalupe, CO
- Guffey, CO
- Gulnare, CO
- Gunbarrel, CO
- Gunnison, CO
- Gypsum, CO
