Cities & Towns in Illinois,

Illinois, state of the United States of America. As of 2020 state had an estimated population of 12,587,530 inhabitants. The state was created 205 years ago in 1818. Its capital city is Springfield.

There are 90 city/town in Illinois, . The largest city of Illinois is Peoria with a population of 109,428. Other cities include, Palatine population 66,830, Plainfield population 44,542, Park Ridge population 36,514, Pekin population 31,808

Peoria
Peoria

Peoria, The third most populous city in Illinois.

Palatine
Palatine

Palatine, Village in Cook County, Illinois, United States

Plainfield
Plainfield

Plainfield, Village in Illinois, United States

From the busy streets of Chicago to the river towns dotting its southern border, Illinois offers a variety of urban attractions and rural charm within its 57,000 square miles. Home to over 12.7 million residents, notable destinations in Illinois include:

Chicago - The largest city in the Midwest, Chicago dazzles with world-class museums like the Art Institute of Chicago, iconic sports teams and venues, deep dish pizza, and stunning lakefront skyline views.

Springfield - Illinois’ capital city, Springfield provides history buffs with Abraham Lincoln sites like his Home and Tomb along with expansive state government buildings.

Galena - Nestled near the Mississippi River, Galena is a beautifully preserved 19th century town with scenic vistas. Its Victorian-era downtown offers shopping, tours, and winery tastings.

Nauvoo - Founded by Mormons in the 1840s, Nauvoo retains its fascinating religious history. Historic homes and buildings like the rebuilt Nauvoo Temple transport visitors back in time.

Champaign-Urbana - Home to the University of Illinois, this twin college town offers innovative dining, cultural events, sports, and entertainment catering to students.

From the big city lights of Chicago to historic small towns, Illinois offers the best of Midwestern metropolitan areas alongside rural escape. Its rivers, lakes, and prairies provide scenic backdrops to favorite destinations.

All Illinois Cities (Aphebetical)

List of cities, towns, neighborhoods & other populated places in Illinois.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
City Name Title County Population
Peoria The third most populous city in Illinois. Peoria 109,428
Palatine Village in Cook County, Illinois, United States Cook 66,830
Plainfield Village in Illinois, United States Jasper 44,542
Park Ridge City in Cook County, Illinois, United States Cook 36,514
Pekin County seat of Tazewell County, Illinois Tazewell 31,808
Park Forest Village in United States of America Cook 20,937
Palos Hills City in Illinois, United States Cook 16,874
Prospect Heights City in Cook County, Illinois, United States Cook 15,702
Palos Heights City in Cook County, Illinois, United States Cook 12,375
Plano City in Kendall County, Illinois, United States Kendall 11,879
Pontiac City in Illinois, USA Saint Clair 11,176
Pingree Grove Village in the United States Kane 9,986
Peru City in Illinois, United States LaSalle 9,612
Paris City in Illinois Edgar 8,144
Park City City in Lake County, Illinois, United States Lake 7,438
Princeton City in Illinois, United States Bureau 7,403
Posen Village in United States of America Washington 5,794
Peoria Heights Village in eastern Peoria County, Illinois Peoria 5,722
Pontoon Beach Town Madison 5,655
Pana Town in Christian County, Illinois, United States Christian 5,327
Pinckneyville City in Perry County, Illinois, United States Perry 5,319
Poplar Grove Human settlement Boone 5,075
Patton Township of Illinois Edgar 4,902
Palos Park Village in Illinois, United States of America Cook 4,718
Pittsfield Township in Pike County, Illinois Pike 4,165
Paxton City in Ford County, Illinois Ford 4,117
Peotone City in United States of America Will 4,100
Pistakee Highlands Census designated place McHenry 3,454
Piasa Unincorporated community in Illinois Macoupin 3,151
Pawnee City in Oklahoma Sangamon 2,646
Preston Heights Census designated place Will 2,575
Petersburg City in Menard County, Illinois Saint Clair 2,207
Petersburg City in Menard County, Illinois Menard 2,190
Polo Town in Illinois, USA Ogle 2,158
Pecatonica City in Illinois, United States of America Winnebago 1,926
Prairie Grove Village in Illinois McHenry 1,920
Prophetstown City in Whiteside County, Illinois, United States Whiteside 1,919
Phoenix Village in United States of America Cook 1,884
Princeville Township in Peoria County, Illinois Peoria 1,663
Preemption Township in Mercer County, Illinois Mercer 1,628
Port Byron City in Illinois, United States of America Rock Island 1,597
Port Barrington City in Illinois, United States of America McHenry 1,481
Philo City in Muskingum County, Ohio, United States of America Champaign 1,378
Pleasant View Township in Macon County, Illinois Schuyler 1,371
Paradise Unincorporated community in Illinois Coles 1,293
Pleasant Grove Unincorporated community in Illinois Johnson 1,275
Palestine Village in Crawford County, Illinois, US Crawford 1,263
Preston Unincorporated community in Illinois, United States Randolph 1,203
Payson Village in Illinois, United States Adams 980
Pleasant Mound Township in Bond County, Illinois Bond 948
Percy City in Illinois, United States of America Randolph 910
Pleasant Hill Town Pike 903
Paw Paw Human settlement in Illinois, United States of America Lee 832
Pleasant Plains Village in Sangamon County, Illinois Sangamon 792
Pearl City Village in the United States Stephenson 772
Pomona Township of Illinois Jackson 755
Piper City Human settlement in Illinois, United States of America Ford 746
Pocahontas City in Illinois, United States of America Bond 720
Potomac Village in Vermilion County, Illinois Vermilion 681
Palmyra Village in Illinois, United States Macoupin 654
Patterson Township in Greene County, Illinois Greene 580
Pittsburg Village in Illinois Fayette 549
Prairie du Rocher City in Illinois, United States of America Randolph 548
Patoka Township in Marion County, Illinois Marion 544
Pierron Village in Illinois, U. Madison 535
Polk City in Illinois, United States of America Will 534
Pesotum Township in Champaign County, Illinois Champaign 520
Plum Hill Township in Washington County, Illinois Washington 507
Plymouth Village in the United States Hancock 459
Portland Township in Whiteside County, Illinois, United States of America Whiteside 395
Perry Village in the United States Pike 371
Prairie City Township in McDonough County, Illinois McDonough 344
Panama Village in Illinois Montgomery 310
Plattville City in United States of America Kendall 257
Plainville Village in the United States Adams 253
Pleasant Valley Unincorporated community in Illinois, United States Jo Daviess 248
Prairie Unincorporated community in Illinois Randolph 244
Pleasant Ridge Township in Livingston County, Illinois Madison 234
Pike Unincorporated community in Illinois Pike 223
Palmer Village in Christian County, Illinois, United States Christian 204
Parkersburg Human settlement in Illinois, United States of America Richland 201
Philadelphia Unincorporated community in Illinois Cass 198
Pulaski Town in and county seat of Pulaski County, Virginia, United States Pulaski 169
Parker Township in Clark County, Illinois Johnson 168
Point Pleasant Township in Warren County, Illinois Jasper 149
Papineau Township in Iroquois County, Illinois Iroquois 147
Pearl Village in Illinois Pike 133
Pontoosuc Township in Hancock County, Illinois Hancock 132
Panola Township in Woodford County, Illinois Woodford 51
Phillipstown Human settlement in Illinois, United States of America White 40
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County Cities on Map (90)