Located in the Central (GMT -06:00) time zone. Area code 815 serves the state of Illinois. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 815 is a General Purpose Code. 815 service area does overlap with 779 area codes. Dialing pattern for local calls within the same NPA (area code) is 1+10D.
Information for Area Code 815
Area Code
815
Country
United States
State
Illinois (IL)
Major City
Rockford
Time Zone
Central (GMT -06:00)
Population
1,538,523
White Population
1,360,945
Black Population
91,754
Hispanic Population
106,070
Asian Population
15,950
Hawaiian Population
420
Indian Population
3,386
Other Population
45,021
Male Population
762,463
Female Population
776,060
Avg House Value
$102,502.71
Avg Household Income
$46,336.76
Avg Persons Per Household
2.65
Median Age
37.15
Median Age (Male)
36.27
Median Age (Female)
38.05
List of Cities in Area Code Overlay Complex 270
Marseilles
Plainfield
Oregon
Joliet
Wonder Lake
Mount Morris
Warren
Graymont
Rockford
Sycamore
Leaf River
Poplar Grove
Newark
Gilman
Lyndon
Morris
South Beloit
Saunemin
Woodstock
Wyanet
Ashkum
Chebanse
Coal City
Princeton
Sterling
New Lenox
Harvard
Roscoe
Flanagan
La Salle
Galena
Genoa
Watseka
Dekalb
Earlville
Orangeville
Crystal Lake
Sandwich
Morrison
Mchenry
Seneca
La Grange Park
Putnam
East Dubuque
Tiskilwa
Loves Park
Durand
West Brooklyn
Paw Paw
Rockton
Chatsworth
Davis Junction
Crescent City
Minooka
Ottawa
La Moille
Grant Park
Kankakee
Freeport
Hanover
Annawan
Mendota
Mount Carroll
Cornell
Garden Prairie
Milford
Manhattan
Richmond
Elizabeth
Spring Grove
Streator
Chadwick
Clifton
Fairbury
Utica
Cullom
Strawn
Piper City
Forrest
Milledgeville
Gardner
Hebron
Lanark
Spring Valley
Momence
Lockport
Polo
Wilmington
Hennepin
Prophetstown
Emington
Chenoa
Saint Anne
Forreston
Union
Manteno
Amboy
Rochelle
Yorkville
Belvidere
Wellington
Tampico
Odell
Savanna
Dixon
Oglesby
Cabery
Stockton
Winslow
Davis
Maple Park
Somonauk
Malta
Apple River
Pontiac
Ashton
Shabbona
Ancona
German Valley
Frankfort
Pecatonica
Byron
Harmon
Lena
Dakota
Pearl City
Mc Nabb
Ladd
Shannon
Winnebago
Tonica
Long Point
Wenona
Sublette
Elwood
Magnolia
Rutland
Capron
Cherry Valley
Granville
Chicago
Walnut
Ohio
Steward
Monroe Center
Kinsman
Braidwood
Dwight
Lostant
Reddick
Grand Ridge
Glenview
Fulton
Hinckley
Verona
Thomson
Kempton
Danforth
Onarga
Waterman
Mineral
Kirkland
Compton
Marengo
Ransom
Sheldon
Martinton
Herscher
Beaverville
Sheffield
Sheridan
Leland
Donovan
Cissna Park
Toluca
Mazon
List of Zip Codes in Area Code 815
61301
61101
61104
61102
61348
60433
60432
60435
60014
60012
60513
60526
60558
60098
61252
61081
60901
60451
60915
60914
60115
60441
60446
61051
61107
61108
60544
61032
61010
60424
61063
60015
60062
60026
61053
60518
61047
61039
61024
61325
61071
61021
60946
60447
60919
61364
61285
60556
60938
60955
60930
61046
60050
61074
60423
61036
61111
60520
60479
61073
61080
61065
60654
60603
60606
61356
61078
61373
61350
60442
61103
61114
60928
60450
61008
61016
61088
61014
61326
61330
60097
60180
61031
61006
61360
61319
61042
61367
60961
61089
61334
61048
60421
60420
61349
61376
60970
61068
60129
60150
60408
60437
61052
60553
61270
60436
61764
60941
60964
60951
60966
60912
61560
61283
61370
61062
61361
61379
61354
61329
61362
60444
61018
60954
61358
61377
61369
60924
60940
60950
60953
60560
60541
60481
60931
61001
60531
60551
61318
60552
61341
60178
61342
60416
60146
61277
61344
61243
61025
60033
61050
60934
60152
61012
60548
61064
60081
60470
61041
61061
61038
61028
61085
61740
61743
61072
61234
61235
61353
61378
60921
61312
61337
61084
61020
61368
60929
60034
61741
61327
60071
60973
60959
61775
61739
60927
60922
60911
61769
61261
60585
60586
61054
61087
60135
61060
61311
60550
60151
61019
61030
61075
61333
61310
61336
61109
61335
61011
61726
60460
SPs and Telephone companies in Area Code 270
Marseilles Telephone Co. Of Marseilles
Rcn Telecom Services Of Illinois, Inc. - Il
Frontier North, Inc. - Il
Ameritech Illinois
New Cingular Wireless Pcs, Llc - Il
Frontier Communications Of Prairie, Inc.
United States Cellular Corp. - Illinois
Sprint Spectrum L.p.
Leaf River Telephone Co.
Sharon Telephone Co. - Illinois
At&t Local
Level 3 Communications, Llc - Il
Essex Telcom, Inc.
Teleport Communications America, Llc - Il
Mcleodusa Telecommunications Services, Inc.- Il
Centurylink Communications Llc
Comcast Phone Of Illinois, Llc Dba Comco - Il
Broadwing Communications, Llc - Il
Bandwidth.com Clec, Llc - Il
Aero North Communications, Inc. - Il
Citizens Telecom Co Illinois-frontier Citizens -il
Usa Mobility Wireless, Inc.
T-mobile Usa, Inc.
Charter Fiberlink - Illinois, Llc - Il
Neutral Tandem-illinois, Llc - Il
Cellco Partnership Dba Verizon Wireless - Il
Mtco Communications, Inc.
Answer America Dba Answer Usa
American Messaging Services, Llc
Itv 3, Llc Dba I3 Broadband
First Communications Llc - Il
Frontier Communications Of The Carolinas, Inc - Il