G
- Gale
- Galivan
- Gallaway
- Gallinas
- Galt
- Ganns
- Garberville
- Gardena
- Garden Acres
- Garden Grove
- Gardenland
- Garden Valley
- Garey
- Garlock
- Garnet
- Garnsey
- Garvanza
- Gasoline Alley
- Gas Point
- Gasquet
- Gaston
- Gate Place
- Gates
- Gavilan Hills
- Gaviota
- Gazelle
- Gemco
- Genesse
- Genevra
- George AFB
- Georgetown
- Gerber
- Gerber-Las Flores
- Geyserville
- Giamis
- Gibson
- Gibsonville
- Giffen Cantua Ranch
- Gilberts
- Gilberts
- Gilliam Place
- Gillis
- Gillis
- Gilman Hot Springs
- Gilroy
- Girvan
- Glacier Point
- Glamis
- Glasgow
- Glen Avon
- Glen Blair
- Glenbrook
- Glenbrook
- Glenburn
- Glencoe
- Glencove
- Glendale
- Glendora
- Glen Ellen
- Glen Frazer
- Glenhaven
- Glenn
- Glennville
- Glenoak Hills
- Glen Oaks
- Glenoaks Country
- Glen Valley
- Glenview
- Glenview
- Glenwood
- Glenwood
- Globe
- Globe Mill
- Glorietta
- Goat Rock
- Goffs
- Goggins
- Golden Hills
- Golden Mesa
- Golden Valley Acres
- Gold Hill
- Gold Hill
- Goldleaf
- Gold River
- Goldstone
- Gold Trail Park
- Goler Heights
- Goleta
- Gomez
- Gonzales
- Good Hope
- Goodmill
- Goodyears Bar
- Gorde
- Gordola
- Gorman
- Gosford
- Goshen
- Gottville
- Grabtown
- Graeagle
- Graham Place
- Granada Hills
- Grand Terrace
- Grangeville
- Granite Bay
- Granite Hills
- Granite Springs
- Graniteville
- Grant
- Grant
- Grantville
- Grapeland
- Grapevine
- Grapit
- Grass Flat
- Grass Lake
- Grass Valley
- Graton
- Gravenstein
- Graves
- Grayson
- Greekstore
- Green
- Greenacres
- Green Acres
- Green Brae
- Greenbrier Mobile Home Park
- Greenfield
- Greenhorn
- Green Springs Ranch
- Green Valley
- Green Valley Lake
- Green Valley Mobile
- Greenview
- Greenville
- Greenwood
- Greenwood
- Gregg
- Grenada
- Gridley
- Griffin Place
- Grimes
- Grizzlie Place
- Grizzly Flat
- Grommet
- Grossmont
- Grove
- Groveland
- Grover Beach
- Grover City
- Guadalcanal Village
- Guadalupe
- Gualala
- Guasti
- Guatay
- Guerneville
- Guernewood Park
- Guernsey
- Guernsey Mill
- Guinda
- Gulf
- Gustine
- Gypsite