815 Area Code Data

Area code 815 has a total estimated population of 1,573,068 people and covers the following localities in Illinois:

  • Amboy
  • Apple River
  • Ashkum
  • Ashton
  • Beaverville
  • Beloit
  • Belvidere
  • Braidwood
  • Bureau
  • Byron
  • Cabery
  • Campus
  • Capron
  • Chadwick
  • Chatsworth
  • Chebanse
  • Chenoa
  • Chicago
  • Cissna Park
  • Clifton
  • Clinton
  • Coal City
  • Compton
  • Cornell
  • Crescent City
  • Crystal Lake
  • Cullom
  • Dakota
  • Dalzell
  • Danforth
  • Davis
  • Dekalb
  • Depue
  • Dixon
  • Donovan
  • Durand
  • Dwight
  • Earlville
  • East Dubuque
  • Elizabeth
  • Elwood
  • Emington
  • Fairbury
  • Flanagan
  • Forrest
  • Forreston
  • Frankfort
  • Franklin Grove
  • Freeport
  • Fulton
  • Galena
  • Garden Prairie
  • Gardner
  • Genoa
  • German Valley
  • Gilman
  • Grand Ridge
  • Grant Park
  • Granville
  • Graymont
  • Hanover
  • Harmon
  • Harvard
  • Hebron
  • Hennepin
  • Herscher
  • Hinckley
  • Hopkins Park
  • Joliet
  • Kankakee
  • Kempton
  • Kinsman
  • Kirkland
  • La Grange
  • La Moille
  • La Salle
  • Lanark
  • Leaf River
  • Leland
  • Lena
  • Leonore
  • Lockport
  • Long Point
  • Lostant
  • Loves Park
  • Lyndon
  • Magnolia
  • Malden
  • Malta
  • Manhattan
  • Manlius
  • Manteno
  • Maple Park
  • Marengo
  • Marseilles
  • Martinton
  • Mazon
  • Mc Connell
  • Mc Nabb
  • Mchenry
  • Mendota
  • Milford
  • Milledgeville
  • Minooka
  • Momence
  • Monroe Center
  • Morris
  • Morrison
  • Mount Carroll
  • Mount Morris
  • New Bedford
  • New Lenox
  • Newark
  • Northbrook
  • Odell
  • Oglesby
  • Ohio
  • Onarga
  • Orangeville
  • Oregon
  • Ottawa
  • Paw Paw
  • Pearl City
  • Pecatonica
  • Piper City
  • Plainfield
  • Polo
  • Pontiac
  • Poplar Grove
  • Princeton
  • Prophetstown
  • Putnam
  • Ransom
  • Reddick
  • Richmond
  • Rochelle
  • Rockford
  • Rockton
  • Roscoe
  • Rutland
  • Saint Anne
  • Sandwich
  • Saunemin
  • Savanna
  • Scales Mound
  • Seneca
  • Shabbona
  • Shannon
  • Sharon
  • Sheffield
  • Sheldon
  • Sheridan
  • Shirland
  • Somonauk
  • Spring Grove
  • Spring Valley
  • Sterling
  • Steward
  • Stillman Valley
  • Stockton
  • Strawn
  • Streator
  • Sublette
  • Sycamore
  • Tampico
  • Thomson
  • Tiskilwa
  • Toluca
  • Tonica
  • Union
  • Utica
  • Verona
  • Walnut
  • Warren
  • Waterman
  • Watseka
  • Wellington
  • Wenona
  • West Brooklyn
  • Wilmington
  • Winnebago
  • Winslow
  • Wonder Lake
  • Woodstock
  • Wyanet
  • Yorkville

The (815) area code is comprised of 730 unique phone exchanges: