Portal:Locations

First introduced: "Everybody Hates Hugo"

Episodes: "Everybody Hates Hugo", "...And Found", "The Other 48 Days"

First introduced: "?"

Episodes: "A Tale of Two Cities", "Par Avion", "The Man from Tallahassee", "Left Behind", "One of Us", "The Brig", "The Man Behind the Curtain", "The Economist", "Eggtown", "The Other Woman", "Meet Kevin Johnson", "The Shape of Things to Come"

First introduced: "Solitary"

Episodes: "Solitary", "Numbers", "Catch-22", "Greatest Hits", "Through the Looking Glass"

First introduced: "Live Together, Die Alone"

Episodes: "Live Together, Die Alone"

First introduced: "Three Minutes"

Episodes: "Three Minutes", "Live Together, Die Alone"

First introduced: "Lockdown"

Episodes: "The Cost of Living", "Enter 77", "One of Us"

First introduced: "All The Best Cowboys Have Daddy Issues"

Episodes: Season 1, "Man of Science, Man of Faith", "Adrift", "Live Together, Die Alone", "Further Instructions", "Flashes Before Your Eyes"

First introduced: "A Tale of Two Cities"

Episodes: "A Tale of Two Cities", "The Glass Ballerina", "Every Man for Himself", "The Cost of Living", "I Do", "Not in Portland", "Stranger in a Strange Land"

First introduced: "Greatest Hits"

Episodes: "Greatest Hits", "Through the Looking Glass"

First introduced: "?"

Episodes: "Live Together, Die Alone", "The Glass Ballerina"

First introduced: "Lockdown"

Episodes: "?", "The Cost of Living", "Exposé"

First introduced: "Solitary"

Episodes: "Through the Looking Glass", "The Beginning of the End"

First introduced: "Par Avion"

Episodes: "Par Avion", "Left Behind", "The Man Behind the Curtain", "The Shape of Things to Come"

First introduced: "Maternity Leave"

Episodes: "Maternity Leave", "One of Us", "D.O.C.", "Something Nice Back Home"

First introduced: "Man of Science, Man of Faith"

Episodes: Season 2

First introduced: "The Other Woman"

Episodes: "The Other Woman"

First introduced: "Not in Portland"

Episodes: "Not in Portland"

First introduced: "Three Minutes"

Episodes: "Three Minutes", "Live Together, Die Alone"

First introduced: "The Man Behind the Curtain"

Episodes: "The Man Behind the Curtain", The Beginning of the End

First introduced: "The Hunting Party"

Episodes: "The Hunting Party", "S.O.S.", "Three Minutes"

First introduced: "The Man Behind the Curtain"

Episodes: "The Man Behind the Curtain", "Through the Looking Glass"

First introduced: "The Glass Ballerina"

Episodes: "The Glass Ballerina", "I Do"

First introduced: "Through the Looking Glass"

Episodes: N/A

First introduced: "Pilot, Part 1"

Episodes: Season 1, Season 2, Season 3, Season 4

First introduced: "White Rabbit"

Episodes: Season 1, "Man of Science, Man of Faith", "Adrift"

First introduced: "Fire + Water"

Episodes: "Fire + Water", "The Long Con", "One of Them", "Maternity Leave", "The Whole Truth", "Lockdown", "Dave", "S.O.S.", "Two for the Road", "?", "Three Minutes", "Further Instructions", "Greatest Hits"

First introduced: "I Do"

Episodes: "I Do"

First introduced: "Hearts and Minds"

Episodes: "Hearts and Minds", "...And Found", "The Long Con", "The Whole Truth", "D.O.C."

First introduced: "Solitary"

Episodes: "Solitary", "...In Translation", "Collision"

First introduced: "Walkabout"

Episodes: "Walkabout", "White Rabbit", "Homecoming", "The Greater Good", "What Kate Did", "Three Minutes", "Tricia Tanaka Is Dead", "Exposé"

First introduced: "Orientation"

Episodes: "Orientation", "Everybody Hates Hugo", "The Other 48 Days"

First introduced: "One of Them"

Episodes: "Lockdown"

First introduced: "Solitary"

Episodes: "Exodus, Part 1", "Exodus, Part 2", "The Brig"

First introduced: "Exodus, Part 1"

Episodes: "Exodus, Part 1", "Abandoned", "The Other 48 Days", "Live Together, Die Alone", "Par Avion", "One of Us", "Through the Looking Glass", "Confirmed Dead"

First introduced: "Numbers"

Episodes: "Exodus, Part 1", "Exodus, Part 2"

First introduced: "Deus Ex Machina"

Episodes: "Deus Ex Machina", "The Greater Good", "Exodus, Part 2", "The 23rd Psalm", "?", "The Cost of Living", "Exposé"

First introduced: "A Tale of Two Cities"

Episodes: "A Tale of Two Cities", "The Glass Ballerina", "Every Man for Himself", "The Cost of Living", "I Do", "Not in Portland", "Stranger in a Strange Land"

First introduced: "Pilot, Part 1"

Episodes: "Pilot, Part 1", "Live Together, Die Alone", "The Cost of Living", "Tricia Tanaka Is Dead", "The Man Behind the Curtain"

First introduced: "Further Instructions"

Episodes: "Further Instructions"

First introduced: "Numbers"

Episodes: "Numbers"

First introduced: "Solitary"

Episodes: "Solitary", "Numbers"

First introduced: "The Brig"

Episodes: "The Brig"

First introduced: "Live Together, Die Alone"

Episodes: "Live Together, Die Alone"

First introduced: "Whatever the Case May Be"

Episodes: "Whatever the Case May Be", "Exposé"

First introduced: "The Brig"

Episodes: "The Constant", "Ji Yeon", "Meet Kevin Johnson"

First introduced: "Live Together, Die Alone"

Episodes: "Live Together, Die Alone"

First introduced: "Everybody Hates Hugo"

Episodes: "Everybody Hates Hugo", "Tricia Tanaka Is Dead"

First introduced: "Pilot, Part 1"

Episodes: Season 1, Season 2, Season 3, Season 4

First introduced: "Numbers"

Episodes: "Numbers", "Deus Ex Machina", "Dave", "The Beginning of the End", "Something Nice Back Home"

First introduced: "All The Best Cowboys Have Daddy Issues"

Episodes: "All The Best Cowboys Have Daddy Issues", "Man of Science, Man of Faith", "Abandoned", "The Hunting Party", "A Tale of Two Cities", "Through the Looking Glass", "Something Nice Back Home"

First introduced: "Man of Science, Man of Faith"

Episodes: "Man of Science, Man of Faith", "Live Together, Die Alone"

First introduced: "White Rabbit"

Episodes: "White Rabbit", "House of the Rising Sun", "Exodus, Part 1", "Exodus, Part 2", "S.O.S.", "Two for the Road", "?", "Further Instructions", "Exposé"

First introduced: "Pilot, Part 2"

Episodes: "Tabula Rasa", "Walkabout", "White Rabbit", "House of the Rising Sun", "The Moth", "Raised by Another", "Hearts and Minds", "Special", "Outlaws", "Numbers", "The Greater Good", "Exodus, Part 1", "Exodus, Part 2", "S.O.S.", "Two for the Road", "?", "Par Avion", "Exposé"

First introduced: "Confirmed Dead"

Episodes: "Confirmed Dead"

First introduced: "Exposé"

Episodes: "Exposé", "Through the Looking Glass"

First introduced: "Tabula Rasa"

Episodes: "Tabula Rasa", "Confidence Man", "Raised by Another", "The Other 48 Days", "Through the Looking Glass"

First introduced: "Pilot, Part 1"

Episodes: "Meet Kevin Johnson"

First introduced: "Pilot, Part 1"

Episodes: "Greatest Hits"

First introduced: "Pilot, Part 2"

Episodes: "Enter 77"

First introduced: "Fire + Water"

Episodes: "The Economist"

First introduced: "House of the Rising Sun"

Episodes: "Solitary", "One of Them", "The Shape of Things to Come"

First introduced: "Deus Ex Machina"

Episodes: "The 23rd Psalm", "The Cost of Living"

First introduced: "White Rabbit"

Episodes: "House of the Rising Sun", "...In Translation", "...And Found", "The Whole Truth", "The Glass Ballerina", "D.O.C.", "Ji Yeon"

First introduced: "The Economist"

Episodes: "The Economist"

First introduced: "Lockdown"

Episodes: "Stranger in a Strange Land"

First introduced: "Confirmed Dead"

Episodes: "Confirmed Dead", "The Shape of Things to Come"

First introduced: "The Moth"

Episodes: "The Moth", "Homecoming", "Fire + Water", "Live Together, Die Alone", "Flashes Before Your Eyes", "Catch-22", "Greatest Hits", "The Constant", "The Shape of Things to Come"

First introduced: "Walkabout"

Episodes: "Walkabout", "White Rabbit", "Confidence Man", "All The Best Cowboys Have Daddy Issues", "Whatever the Case May Be", "Hearts and Minds", "Special", "Outlaws", "Numbers", "Deus Ex Machina", "Do No Harm", "Born to Run", "Man of Science, Man of Faith", "Adrift", "Orientation", "Everybody Hates Hugo", "Abandoned", "Collision", "What Kate Did", "The Hunting Party", "The Long Con", "Lockdown", "Dave", "S.O.S.", "Two for the Road", "?", "Live Together, Die Alone", "A Tale of Two Cities", "Further Instructions", "Every Man for Himself", "I Do", "Not in Portland", "Tricia Tanaka Is Dead", "The Man from Tallahassee", "Left Behind", "One of Us", "The Man Behind the Curtain", "Through the Looking Glass", "The Beginning of the End", "Confirmed Dead", "Eggtown", "Meet Kevin Johnson", "Something Nice Back Home"