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Area Code 224

Area code 224 is in Illinois, USA, spanning 4 counties and serving 72 cities, including Elgin, Evanston or Schaumburg; it currently uses 541 prefixes, assigned from 224-200-XXXX through 224-999-XXXX.

In service since January 05, 2002, area code 224 is an overlay Numbering Plan Area, part of overlay complex 847/224.

The current local time is 05:42:48 AM (Central Time Zone).

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Map of area code 224

More Illinois area codes

224 area code prefix location

NPANXX Area served1 Date2
224-200 Arlington Heights 11/5/2008
224-201 Arlington Heights 11/5/2008
224-202 Arlington Heights 11/5/2008
224-203 Northbrook 9/17/2011
224-204 Evanston 12/21/2015
224-205 Northbrook 11/3/2011
224-206 Libertyville 11/3/2011
224-207 Libertyville 5/24/2004
224-208 Bartlett 10/17/2003
224-209 Algonquin 11/15/2011
224-210 Arlington Heights 11/22/2004
224-212 Lake Forest 11/12/2003
224-213 Northbrook 10/31/2005
224-214 Waukegan 12/19/2011
224-215 Wilmette 4/20/2012
224-216 Winnetka 1/15/2009
224-217 Des Plaines 9/24/2004
224-218 Hampshire 11/1/2004
224-219 Waukegan 12/10/2015
224-220 Des Plaines 11/24/2004
224-221 Northbrook 10/15/2008
224-222 Elk Grove 4/27/2006
224-223 Northbrook 10/15/2008
224-225 Fox Lake 6/19/2006
224-226 Northbrook 9/8/2011
224-227 Elgin 5/2/2011
224-228 Barrington 9/28/2012
224-229 Des Plaines 9/21/2011
224-230 Elgin 5/25/2011
224-231 Roselle 9/6/2012
224-232 Arlington Heights 8/28/2002
224-233 Skokie 3/29/2006
224-234 Northbrook 10/31/2005
224-235 Northbrook 7/11/2011
224-236 Bartlett 7/11/2011
224-237 Waukegan 7/18/2011
224-238 Elgin 6/4/2004
224-239 Elgin 10/13/2010
224-240 Des Plaines 2/19/2013
224-241 Algonquin 1/13/2010
224-242 Elgin 7/19/2011
224-243 Fox Lake 11/6/2009
224-244 Des Plaines 5/18/2010
224-245 Arlington Heights 7/21/2011
224-246 Northbrook 8/11/2011
224-247 Arlington Heights 4/18/2013
224-248 Arlington Heights 6/21/2013
224-249 Algonquin 8/2/2013
224-250 Des Plaines 8/11/2011
224-251 Skokie 4/27/2012
224-252 Grayslake 6/25/2013
224-253 Algonquin 6/25/2013
224-254 Des Plaines 9/13/2011
224-255 Winnetka 7/22/2011
224-256 Algonquin 8/10/2012
224-257 Des Plaines 3/28/2014
224-258 Arlington Heights 6/26/2015
224-259 Antioch 2/17/2016
224-260 Glenview 11/21/2005
224-261 Northbrook 9/8/2011
224-262 Des Plaines 06/26/2023
224-263 Huntley 3/8/2016
224-264 Des Plaines 7/21/2017
224-265 Elk Grove 6/17/2004
224-266 Elk Grove 10/23/2017
224-267 Antioch 12/16/2004
224-268 Elgin 7/1/2014
224-269 Glencoe 2/13/2015
224-270 Round Lake 11/28/2001
224-271 Lake Forest 9/27/2016
224-272 Zion 1/29/2016
224-273 Arlington Heights 11/14/2017
224-274 Half Day 12/8/2017
224-275 Des Plaines 12/11/2017
224-276 Elgin 10/4/2010
224-277 Northbrook 9/2/2010
224-278 Roselle 9/30/2016
224-279 Wheeling 8/4/2010
224-280 Waukegan 10/17/2002
224-281 Elgin 10/16/2013
224-282 Northbrook N/A
224-283 Des Plaines 1/31/2018
224-284 Deerfield 1/31/2018
224-285 Deerfield 3/18/2019
224-286 Lake Zurich 9/1/2005
224-287 Northbrook 11/21/2016
224-288 Barrington 2/27/2018
224-289 Des Plaines 4/6/2018
224-290 Elgin 4/13/2018
224-291 Elgin 4/16/2018
224-292 Mundelein 7/23/2018
224-293 Dundee 9/19/2002
224-294 Libertyville 10/19/2018
224-295 Palatine 10/22/2018
224-296 Evanston 12/5/2018
224-297 Des Plaines 10/23/2018
224-298 Grayslake 12/5/2018
224-299 Elk Grove 4/15/2019

NPANXX Area served1 Date2
224-300 Deerfield 11/4/2010
224-301 Des Plaines 9/5/2012
224-302 Waukegan 7/13/2012
224-303 Waukegan 7/5/2012
224-304 Zion 5/19/2010
224-305 Northbrook 2/19/2003
224-306 Northbrook 2/19/2003
224-307 Evanston 9/27/2012
224-308 Round Lake 5/2/2012
224-309 Northbrook 06/26/2023
224-310 Arlington Heights 10/12/2012
224-312 Roselle 06/26/2023
224-313 Wheeling 12/23/2015
224-314 Arlington Heights 8/7/2019
224-315 Des Plaines 10/15/2012
224-316 Northbrook 10/19/2012
224-317 Lake Forest 10/10/2019
224-318 Arlington Heights 1/3/2013
224-319 Des Plaines 10/23/2019
224-320 Lake Zurich 1/21/2002
224-321 Waukegan 9/26/2006
224-322 Arlington Heights 3/20/2017
224-323 Arlington Heights 10/7/2009
224-324 Arlington Heights 4/10/2012
224-325 Elgin 12/15/2008
224-326 Northbrook 4/23/2013
224-327 Mundelein 4/27/2020
224-328 Winnetka 5/28/2020
224-329 Roselle 6/8/2020
224-330 Northbrook 9/23/2005
224-331 Waukegan 06/26/2023
224-332 Lake Forest 5/6/2020
224-333 Algonquin 2/17/2005
224-334 Arlington Heights 3/5/2014
224-335 Antioch 8/27/2020
224-336 Northbrook 7/9/2013
224-337 Fox Lake 3/19/2013
224-338 Round Lake 10/12/2006
224-339 Elgin 9/29/2014
224-340 Des Plaines N/A
224-341 Skokie 12/18/2020
224-342 Arlington Heights 10/11/2019
224-343 Northbrook 9/29/2007
224-344 Wilmette 5/28/2020
224-345 Arlington Heights 3/2/2005
224-346 Lake Villa 7/14/2020
224-347 Arlington Heights 5/5/2014
224-348 Algonquin 10/10/2019
224-349 Arlington Heights 1/13/2021
224-350 Evanston 9/4/2020
224-351 Half Day 10/17/2008
224-352 Half Day 3/25/2014
224-353 Roselle 4/27/2006
224-354 Des Plaines 9/18/2020
224-355 Northbrook 4/22/2005
224-356 Elk Grove 3/14/2007
224-357 Cary 3/16/2006
224-358 Mundelein 8/10/2010
224-359 Elgin 10/13/2004
224-360 Mundelein 8/17/2010
224-361 Des Plaines N/A
224-362 Zion 10/14/2019
224-363 Elgin 9/30/2020
224-364 Evanston 6/5/2003
224-365 Northbrook N/A
224-366 Elk Grove 3/30/2005
224-367 Dundee 10/11/2019
224-368 Arlington Heights 12/11/2020
224-369 Waukegan 1/14/2021
224-370 Des Plaines 1/25/2021
224-371 Grayslake 2/4/2021
224-372 Lake Villa 11/7/2006
224-373 Deerfield 2/11/2021
224-374 Northbrook 10/24/2006
224-375 Algonquin 3/9/2021
224-376 Fox Lake 3/25/2021
224-377 Half Day 2/21/2005
224-378 Libertyville 3/30/2021
224-379 Park Ridge 3/30/2021
224-380 Plato Center 3/30/2021
224-381 Waukegan 11/13/2001
224-382 Glenview 3/31/2021
224-383 Northbrook 5/24/2004
224-384 Arlington Heights 5/14/2021
224-385 Barrington 6/11/2014
224-386 Palatine 9/2/2014
224-387 Arlington Heights 9/28/2007
224-388 Arlington Heights 2/18/2005
224-389 Algonquin 6/7/2021
224-390 Round Lake 7/7/2021
224-391 Arlington Heights 8/3/2021
224-392 Northbrook 9/23/2002
224-393 Huntley 6/9/2021
224-394 Bartlett 7/14/2021
224-395 Bensenville 7/14/2021
224-396 Barrington 8/3/2021
224-397 Algonquin 8/3/2021
224-398 Arlington Heights 8/10/2021
224-399 Waukegan 1/4/2006

NPANXX Area served1 Date2
224-400 Arlington Heights 11/11/2010
224-401 Algonquin 1/15/2013
224-402 Elgin 4/19/2002
224-403 Wilmette 8/12/2021
224-404 Elk Grove 1/15/2013
224-405 Northbrook 2/7/2002
224-406 Northbrook 8/8/2005
224-407 Elgin 2/19/2013
224-408 Wilmette 4/30/2013
224-409 Arlington Heights 5/24/2013
224-410 Algonquin 5/24/2013
224-412 Northbrook 7/18/2013
224-413 Waukegan 7/9/2013
224-414 Bensenville 10/31/2016
224-415 Northbrook 7/9/2013
224-416 Waukegan 8/31/2021
224-417 Evanston 9/10/2021
224-418 Elk Grove 9/22/2021
224-419 Waukegan 6/30/2010
224-420 Evanston 9/14/2001
224-421 Arlington Heights 11/11/2016
224-422 Des Plaines 10/13/2006
224-423 Des Plaines 3/25/2014
224-424 Libertyville 8/1/2013
224-425 Arlington Heights 7/10/2007
224-426 Fox Lake 11/29/2016
224-427 Barrington 4/18/2013
224-428 Algonquin 11/11/2016
224-429 Grayslake 9/23/2021
224-430 Waukegan 1/22/2002
224-431 Arlington Heights 10/11/2021
224-432 Glenview 7/9/2013
224-433 Libertyville 4/25/2006
224-434 Wheeling 10/8/2014
224-435 Glenview 11/7/2014
224-436 Lake Forest 6/7/2002
224-437 Wheeling 10/19/2021
224-438 Lake Zurich 10/25/2021
224-439 Waukegan 11/17/2021
224-440 Waukegan 10/28/2008
224-441 Waukegan 10/28/2008
224-442 Franklin Park 4/25/2014
224-443 Des Plaines 9/29/2014
224-444 Lake Villa N/A
224-445 Antioch 6/1/2021
224-446 Des Plaines 5/11/2022
224-447 Waukegan 10/7/2021
224-448 Barrington 12/23/2021
224-449 Elgin 9/22/2021
224-450 Algonquin 1/7/2022
224-451 Barrington 6/22/2020
224-452 Palatine 5/4/2021
224-453 Deerfield 1/31/2022
224-454 Elgin 2/22/2022
224-455 Waukegan 10/27/2021
224-456 Northbrook 4/27/2006
224-457 Elgin 2/25/2022
224-458 Northbrook 12/22/2014
224-459 Libertyville 3/22/2022
224-460 Arlington Heights 4/1/2022
224-461 Deerfield 5/11/2022
224-462 Algonquin 5/27/2022
224-463 Glenview 6/9/2022
224-464 Wheeling 6/10/2022
224-465 Arlington Heights 4/24/2007
224-466 Northbrook 10/27/2021
224-467 Northbrook 6/22/2022
224-468 Highland Park 6/27/2022
224-469 Waukegan 5/22/2015
224-470 Skokie 9/16/2014
224-471 Des Plaines 7/28/2022
224-472 Winnetka 5/4/2021
224-473 Round Lake 1/28/2002
224-474 Des Plaines 8/5/2022
224-475 Mundelein 6/7/2007
224-476 Des Plaines 8/9/2022
224-477 Des Plaines 1/20/2017
224-478 Des Plaines 10/1/2014
224-479 Northbrook 10/24/2014
224-480 Waukegan 10/24/2014
224-481 Wheeling 8/9/2022
224-482 Deerfield 8/24/2022
224-483 Elgin 9/2/2022
224-484 Dundee 5/12/2006
224-485 Barrington 9/21/2022
224-486 Arlington Heights 9/26/2022
224-487 Cary 2/24/2016
224-488 Glenview 10/11/2019
224-489 Barrington 6/10/2002
224-490 Arlington Heights 10/3/2022
224-491 Glenview 10/12/2022
224-492 Northbrook 01/10/2023
224-493 Elgin 03/01/2023
224-494 Dundee 03/08/2023
224-495 Northbrook 04/25/2023
224-496 Skokie 06/26/2023
224-497 Elgin 07/11/2023
224-498 Antioch 08/08/2023
224-499 Arlington Heights 7/10/2020

NPANXX Area served1 Date2
224-500 Des Plaines 1/12/2011
224-501 Northbrook 8/7/2012
224-502 Round Lake 08/16/2023
224-503 Northbrook 10/24/2014
224-504 Libertyville 11/14/2014
224-505 Winnetka 12/17/2014
224-506 Des Plaines 09/18/2023
224-507 Deerfield 12/19/2014
224-508 Elgin 7/21/2014
224-509 Algonquin 1/5/2015
224-510 Wheeling 1/20/2015
224-512 Barrington 1/17/2002
224-513 Libertyville 4/3/2006
224-514 Algonquin 09/19/2023
224-515 Deerfield 3/18/2005
224-516 Lake Forest 1/8/2015
224-517 Barrington 2/20/2015
224-518 Arlington Heights 1/21/2015
224-519 Des Plaines 09/27/2023
224-520 Roselle 1/17/2002
224-521 Glenview 7/29/2002
224-522 Northbrook 10/18/2002
224-523 Elgin 10/6/2008
224-524 Roselle 10/03/2023
224-525 Northbrook 10/13/2023
224-526 Arlington Heights 9/23/2020
224-527 Elk Grove 10/18/2023
224-528 Roselle 10/18/2023
224-529 Glenview 3/20/2017
224-530 Plato Center 3/24/2015
224-531 Des Plaines 4/6/2009
224-532 Wheeling 9/28/2007
224-533 Deerfield 4/11/2006
224-534 Skokie 6/18/2007
224-535 Elgin 2/24/2005
224-536 Skokie 1/13/2022
224-537 Des Plaines 01/05/2024
224-538 Waukegan 3/28/2005
224-539 Palatine 5/2/2016
224-540 Round Lake 10/23/2015
224-541 Grayslake 10/24/2011
224-542 Wheeling 5/13/2008
224-543 Half Day 3/11/2005
224-544 Lake Forest 3/28/2007
224-545 Northbrook 11/8/2007
224-546 Palatine 1/13/2022
224-547 Evanston 01/05/2024
224-548 Northbrook 9/29/2007
224-549 Dundee 01/05/2024
224-550 Elk Grove 3/30/2021
224-551 Deerfield 8/26/2016
224-552 Lake Forest 9/12/2006
224-553 Elk Grove 01/05/2024
224-554 Deerfield 5/19/2006
224-556 Algonquin 01/08/2024
224-557 Palatine 01/09/2024
224-558 Arlington Heights 6/5/2002
224-559 Northbrook 01/10/2024
224-560 Libertyville 01/10/2024
224-561 Palatine 01/10/2024
224-562 Arlington Heights 01/24/2024
224-563 Des Plaines 2/7/2008
224-564 Elk Grove 06/29/2023
224-565 Northbrook 8/21/2007
224-566 Algonquin 9/18/2020
224-567 Des Plaines 4/19/2006
224-568 Half Day N/A
224-569 Huntley 2/20/2002
224-570 Waukegan 12/13/2016
224-571 Northbrook 9/16/2015
224-572 Waukegan 8/21/2008
224-573 Elgin 01/24/2024
224-574 Skokie 01/24/2024
224-575 Elgin 10/17/2016
224-576 Waukegan 01/24/2024
224-577 Round Lake 1/17/2002
224-578 Palatine 11/13/2001
224-579 Huntley 02/01/2024
224-580 Des Plaines 10/17/2016
224-581 Hampshire 02/02/2024
224-582 Lake Villa 02/02/2024
224-583 Franklin Park 02/02/2024
224-584 Wheeling 02/02/2024
224-585 Park Ridge 12/29/2005
224-586 Northbrook 02/05/2024
224-587 Arlington Heights 11/29/2006
224-588 Wheeling 2/21/2002
224-592 Skokie 1/6/2009
224-595 Arlington Heights 7/15/2002
224-599 Barrington 7/10/2020

NPANXX Area served1 Date2
224-600 Algonquin 2/10/2011
224-601 Skokie 9/6/2012
224-602 Mundelein 11/10/2016
224-603 Antioch 6/29/2005
224-605 Elgin 12/12/2016
224-607 Arlington Heights 12/12/2016
224-610 Waukegan 2/2/2005
224-612 Des Plaines 7/27/2004
224-616 Glenview 12/6/2005
224-619 Deerfield 11/13/2001
224-622 Barrington 3/28/2002
224-623 Algonquin 11/13/2001
224-625 Arlington Heights 2/25/2002
224-627 Waukegan 4/30/2002
224-628 Northbrook 7/30/2002
224-629 Elgin 10/18/2001
224-632 Deerfield 9/23/2002
224-633 Barrington 2/28/2005
224-634 Barrington 4/28/2009
224-635 Elk Grove 1/30/2009
224-636 Northbrook 4/22/2005
224-637 Waukegan 9/12/2007
224-639 Northbrook 7/21/2004
224-642 Elgin 2/25/2022
224-643 Lake Villa 6/27/2002
224-645 Northbrook 6/5/2007
224-649 Northbrook 6/25/2008
224-650 Huntley 10/28/2008
224-651 Des Plaines 11/23/2015
224-653 Roselle 5/20/2002
224-654 Huntley 5/30/2006
224-655 Barrington 12/30/2005
224-656 Waukegan 9/26/2006
224-659 Elk Grove 8/13/2002
224-660 Glenview 3/30/2021
224-661 Glenview 4/2/2014
224-662 Lake Zurich 4/2/2014
224-665 Waukegan 5/8/2014
224-666 Arlington Heights 3/6/2019
224-667 Waukegan 12/31/2013
224-668 Waukegan 12/31/2013
224-676 Wheeling 9/15/2006
224-677 Lake Zurich N/A
224-678 Algonquin 6/19/2006
224-688 Northbrook 5/18/2006
224-689 Elgin 7/14/2020
224-698 Roselle 9/24/2002
224-699 Dundee 5/12/2006

NPANXX Area served1 Date2
224-701 Lake Villa 12/24/2013
224-702 Zion 12/24/2013
224-703 Algonquin 11/12/2013
224-704 Algonquin 11/15/2013
224-706 Lake Forest 1/23/2014
224-707 Highland Park 1/27/2014
224-713 Algonquin 6/11/2014
224-714 Evanston 10/27/2014
224-715 Libertyville 6/19/2002
224-716 Algonquin 2/20/2015
224-717 Zion 10/18/2002
224-722 Elk Grove 7/13/2020
224-723 Northbrook 12/21/2006
224-724 Skokie 4/20/2016
224-725 Des Plaines 9/16/2008
224-727 Deerfield 11/6/2014
224-730 Zion 8/30/2002
224-732 Wauconda 6/18/2014
224-733 Waukegan 3/3/2011
224-735 Arlington Heights 1/18/2006
224-737 Half Day 10/2/2009
224-742 Half Day 1/13/2022
224-744 Franklin Park 7/14/2020
224-747 Hampshire 3/24/2016
224-754 Highland Park 6/21/2016
224-757 Round Lake 2/28/2005
224-758 Elk Grove 10/17/2019
224-760 Elgin 8/26/2014
224-762 Elgin 7/18/2016
224-763 Northbrook 7/21/2016
224-764 Arlington Heights 7/12/2007
224-765 Highland Park N/A
224-766 Glenview 11/13/2001
224-768 Lake Forest 1/6/2022
224-769 Elgin 7/21/2016
224-770 Barrington 12/6/2005
224-772 Waukegan 9/23/2002
224-774 Zion 1/28/2014
224-775 Des Plaines 2/17/2016
224-777 Hampshire 11/3/2009
224-778 Mundelein 3/11/2005
224-781 Franklin Park 3/30/2016
224-783 Elgin 4/28/2009
224-786 Highland Park 8/6/2020
224-788 Antioch 10/9/2006
224-789 Zion 9/20/2006
224-795 Arlington Heights 9/28/2007
224-799 Northbrook 11/27/2020

NPANXX Area served1 Date2
224-800 Arlington Heights 3/3/2011
224-801 Palatine 6/7/2013
224-802 Dundee 6/7/2013
224-803 Northbrook 1/23/2012
224-804 Deerfield 6/12/2013
224-805 Arlington Heights 10/18/2002
224-806 Elgin 6/13/2013
224-808 Northbrook 6/19/2015
224-809 Des Plaines 10/7/2021
224-813 Deerfield 6/4/2013
224-814 Round Lake 9/20/2013
224-817 Algonquin 6/11/2014
224-818 Round Lake 7/16/2014
224-822 Arlington Heights 1/4/2021
224-828 Elgin 7/15/2009
224-829 Algonquin 1/9/2009
224-830 Arlington Heights 7/25/2014
224-833 Elgin 10/27/2021
224-836 Palatine 2/26/2002
224-837 Glencoe 2/23/2022
224-840 Elgin 3/30/2021
224-842 Libertyville 10/11/2019
224-844 Arlington Heights 10/27/2021
224-848 Barrington 6/30/2005
224-850 Cary 3/30/2021
224-855 Arlington Heights 10/7/2009
224-856 Elgin 12/21/2006
224-857 Arlington Heights 6/23/2015
224-858 Huntley 11/14/2006
224-864 Mundelein 4/10/2013
224-866 Des Plaines 10/25/2021
224-875 Elk Grove 9/25/2002
224-877 Elk Grove 2/2/2016
224-880 Lake Forest 5/23/2011
224-888 Cary 8/3/2010
224-899 Wheeling 7/14/2020

NPANXX Area served1 Date2
224-900 Wheeling 3/22/2011
224-901 Pistakee Highlands 4/10/2013
224-904 Northbrook 3/24/2016
224-908 Fox Lake 3/6/2015
224-922 Glencoe 7/14/2020
224-927 Northbrook 9/26/2006
224-931 Mundelein 8/17/2015
224-933 Round Lake 10/10/2019
224-935 Skokie 6/4/2009
224-938 Des Plaines N/A
224-940 Deerfield 1/28/2002
224-944 Waukegan 7/13/2006
224-946 Waukegan 6/8/2020
224-948 Deerfield 11/28/2001
224-955 Roselle 7/14/2020
224-966 Pistakee Highlands 8/6/2020
224-970 Bartlett 2/13/2015
224-977 Northbrook 10/10/2019
224-985 Park Ridge 8/28/2015
224-990 Plato Center 6/19/2006
224-993 Wauconda 3/11/2005
224-998 Skokie 12/9/2015
224-999 Evanston 9/22/2010
  1. For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
  2. Assignment date. N/A - mostly central office codes assigned before 2001.
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Cities in area code 224

City1 County Time2
Algonquin McHenry C
Antioch Lake C
Arlington Heights Cook C
Barrington Lake C
Buffalo Grove Lake C
Burlington Kane C
Carpentersville Kane C
Cary McHenry C
Deerfield Lake C
Des Plaines Cook C
Dundee Kane C
Elgin Kane C
Elk Grove Village Cook C
Evanston Cook C
Fort Sheridan Lake C
Fox Lake Lake C
Fox River Grove McHenry C
Franklin Park Cook C
Gilberts Kane C
Glencoe Cook C
Glenview Cook C
Golf Cook C
Grandwood Park Lake C
Grayslake Lake C
Great Lakes Lake C
Gurnee Lake C
Hampshire Kane C
Highland Park Lake C
Highwood Lake C
Hoffman Estates Cook C
Huntley McHenry C
Ingleside Lake C
Island Lake Lake C
Kenilworth Cook C
Knollwood Lake C
Lake Bluff Lake C
Lake Forest Lake C
Lake In The Hills McHenry C
Lake Villa Lake C
Lake Zurich Lake C
Libertyville Lake C
Lincolnshire Lake C
Lincolnwood Cook C
Long Grove Lake C
Morton Grove Cook C
Mount Prospect Cook C
Mundelein Lake C
Niles Cook C
North Chicago Lake C
Northbrook Cook C
Palatine Cook C
Park City Lake C
Park Ridge Cook C
Plato Center Kane C
Prospect Heights Cook C
Rolling Meadows Cook C
Round Lake Lake C
Russell Lake C
Schaumburg Cook C
Schiller Park Cook C
Skokie Cook C
South Elgin Kane C
Techny Cook C
Vernon Hills Lake C
Wadsworth Lake C
Wauconda Lake C
Waukegan Lake C
Wheeling Cook C
Wilmette Cook C
Winnetka Cook C
Winthrop Harbor Lake C
Zion Lake C
  1. Listed above are most places served by USA area code 224. When multiple places in a US state share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. C stands for Central Time Zone (currently 05:42:48 AM).
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