- Gould
- Gowanda
- Graft
- Granada
- Granby
- Grand Junction
- Grand Lake
- Grand Mesa
- Grand View Estates
- Grandview
- Granite
- Grant
- Graymont
- Great Divide
- Greeley
- Greeley Junction
- Green Mountain Falls
- Green Settlement
- Green Valley Acres
- Greenhorn
- Greenland
- Greenwood
- Greenwood
- Greenwood, Custer
- Greenwood Village
- Greystone
- Griff
- Grote
- Grover
- Guadalupe