I
- Iaeger
- Ibapah
- Iberia
- Iberia
- Icard
- Ickesburg
- Ida
- Ida
- Ida
- Idabel
- Ida Grove
- Idaho City
- Idaho Falls
- Idaho Springs
- Idalia
- Idalou
- Idamay
- Idanha
- Idaville
- Idaville
- Ideal
- Ideal
- Ider
- Idledale
- Idlewild
- Idleyld Park
- Idyllwild
- Ignacio
- Igo
- Ihlen
- Ijamsville
- Ikes Fork
- Ila
- Ilfeld
- Iliamna
- Iliff
- Ilion
- Illinois City
- Illiopolis
- Ilwaco
- Imbler
- Imboden
- Imlay
- Imlay City
- Imlaystown
- Imler
- Immokalee
- Imnaha
- Imogene
- Imperial
- Imperial
- Imperial
- Imperial
- Imperial
- Imperial Beach
- Ina
- Inavale
- Inchelium
- Incline Village
- Independence
- Independence
- Independence
- Independence
- Independence
- Independence
- Independence
- Independence
- Independence
- Index
- Indiahoma
- Indialantic
- Indiana
- Indianapolis
- Indian Head
- Indian Hills
- Indian Lake
- Indian Lake Estates
- Indianola
- Indianola
- Indianola
- Indianola
- Indianola
- Indianola
- Indianola
- Indian River
- Indian Rocks Beach
- Indian Springs
- Indian Town
- Indian Trail
- Indian Valley
- Indian Valley
- Indian Wells
- Indio
- Indore
- Industrial
- Industry
- Industry
- Inez
- Inez
- Ingalls
- Ingalls
- Ingalls
- Inglefield
- Ingleside
- Ingleside
- Inglewood
- Inglis
- Ingold
- Ingomar
- Ingomar
- Ingraham
- Ingram
- Ingram
- Inkom
- Inkster
- Inkster
- Inland
- Inman
- Inman
- Inman
- Inman
- Innis
- Inola
- Institute
- Intercession City
- Intercourse
- Interior
- Interlachen
- Interlaken
- International Falls
- Intervale
- Intracoastal City
- Inver Grove Heights
- Inverness
- Inverness
- Inverness
- Inverness
- Inwood
- Inwood
- Inyokern
- Iola
- Iola
- Iola
- Iola
- Iona
- Iona
- Iona
- Ione
- Ione
- Ione
- Ionia
- Ionia
- Ionia
- Ionia
- Iota
- Iowa
- Iowa City
- Iowa Falls
- Iowa Park
- Ipava
- Ipswich
- Ipswich
- Ira
- Ira
- Iraan
- Irasburg
- Iredell
- Ireland
- Ireland
- Irene
- Irene
- Ireton
- Irma
- Irmo
- Iron Belt
- Iron City
- Iron City
- Irondale
- Irondale
- Irondequoit
- Iron Gate
- Ironia
- Iron Mountain
- Iron Ridge
- Iron River
- Iron River
- Irons
- Ironside
- Ironsides
- Iron Springs
- Iron Station
- Ironton
- Ironton
- Ironville
- Ironwood
- Iroquois
- Iroquois
- Irrigon
- Irvine
- Irvine
- Irvine
- Irving
- Irving
- Irving
- Irvington
- Irvington
- Irvington
- Irvington
- Irvington
- Irvington
- Irvona
- Irwin
- Irwin
- Irwin
- Irwin
- Irwinton
- Irwinville
- Isaban
- Isabel
- Isabel
- Isabella
- Isabella
- Isabella
- Isabella
- Isanti
- Iselin
- Ishpeming
- Islamorada
- Island
- Island City
- Island Falls
- Island Grove
- Island Heights
- Islandia
- Island Lake
- Island Park
- Island Park
- Island Pond
- Islandton
- Isle
- Isle au Haut
- Isle la Motte
- Isle of Palms
- Isle of Wight
- Isle Saint George
- Islesford
- Isleta
- Isleton
- Islip
- Islip Terrace
- Ismay
- Isola
- Isom
- Isonville
- Issaquah
- Issue
- Istachatta
- Italy
- Itasca
- Itasca
- Ithaca
- Ithaca
- Ithaca
- Itmann
- Itta Bena
- Iuka
- Iuka
- Iuka
- Iva
- Ivan
- Ivanhoe
- Ivanhoe
- Ivanhoe
- Ivanhoe
- Ivanhoe
- Ivel
- Ivesdale
- Ivins
- Ivor
- Ivy
- Ivydale
- Ivyton
- Ixonia
