Ottawa, Illinois

Ottawa: City in Illinois, United States


Ottawa is a city located in the county of LaSalle in the U.S. state of Illinois. Its population at the 2010 census was 18,768 and a population density of 538 people per km². After 10 years in 2020 city had an estimated population of 18,097 inhabitants.

The city was created 171 years ago in 1852.

Ottawa locator map
Location of Ottawa on Illinois map.

Quick Facts about Ottawa

Population : 18,097 (2020)
Country : United States of America
State : Illinois (United States)
County : LaSalle County
Different from : Ottawa
Postal code : 61350
Area : 34.89 km2
Altitude : 482 feet / 147 meters
Capital city : Ottawa is capital of LaSalle County
Establishment : January 01, 1853 (171 years ago)
Time Zone : America/Chicago
Local time : 06:36:55 (13th June 2024)
Density : 519 Pop. per km² as of 2020
Population growth : -3.71% (2010-2020)
Ottawa IL Downtown1 image
Ottawa IL Downtown1
Ottawa IL Downtown1 image


Ottawa is located at 41°20'44"N 88°50'33"W (41.3455900, -88.8425800).

Ottawa map


According to census records, the population of Ottawa decreased by 3.71% in 10 years.

Year Population % Change Method
2010 18,768 - census
2011 18,809 0.22% estimation process
2012 18,692 -0.63% estimation process
2013 18,640 -0.28% estimation process
2014 18,544 -0.52% estimation process
2015 18,439 -0.57% estimation process
2016 18,343 -0.52% estimation process
2017 18,267 -0.42% estimation process
2018 18,217 -0.27% estimation process
2019 18,139 -0.43% estimation process
2020 18,097 -0.23% estimation process

Ottawa zip code is 61350. County name: LaSalle, County fips: 17099

Otava, Ottava, Ottawa, Ottowa, South Ottawa, atawa aylynwy, awtawa, Отава, Оттава, أوتاوا, اتاوا، ایلینوی, اوٹاوا، الینوائے

People born in Ottawa (50)

People born in Ottawa, including paleontologist Stephen L. Brusatte, film director and screenwriter Terrence Malick, judge Harry Kelly, .


  • Russell Lee (American photographer) he was born in 21/07/1903
  • Johnston McCulley (American writer) he was born in 02/02/1883
  • Arthur Gossard (American scientist) he was born in 18/06/1935
  • Bob Christman (American male curler) he was born in 07/12/1942
  • Bob McGrath (American singer and actor) he was born in 13/06/1932
  • Charles Plamondon (American entrepreneur and industrialist based in Chicago.) he was born in 14/09/1856
  • George R. Lawrence (American photographer) he was born in 24/02/1868
  • Frederick Moloney (American Olympic medalist) he was born in 04/08/1882
  • Maria Kanellis (American professional wrestler, manager, actress, model and singer) she was born in 25/02/1982
  • Walt Willey (American actor) he was born in 26/01/1951
  • Tom Flanagan (author, academic, and political activist) he was born in 05/03/1944
  • Aaron Shea (American football player) he was born in 05/12/1976
  • Arthur L. Wagner (United States brigadier general and military instructor) he was born in 16/03/1853
  • Barbara Shearer (American musician) she was born in 16/09/1936
  • Charlie Jaeger (American baseball player) he was born in 17/04/1875
  • Donald Grobe (opera singer) he was born in 16/12/1929
  • Ed Mickelson (Major League Baseball first baseman) he was born in 09/09/1926
  • Emil Lockwood (American politician) he was born in 23/09/1919

Schools in Ottawa

College & universities near Ottawa, IL

Code Name City ZIP
145831 Illinois Valley Community College Oglesby (IL) 61348-9692

Stations (20)

Amtrak & bus stations near Ottawa, IL

Code Name Address Type
MDT Mendota station 783 Main Street RAIL
PLO Plano 101 West Main Street RAIL
DWT Dwight station 119 West Main St. RAIL
PCT Princeton 107 Bicentennial Dr. RAIL
PON Pontiac station 721 West Washington St. RAIL

Post offices near Ottawa

Post Office Name City ZIP
Downtown Ottawa Post Office Ottawa (IL) 61350

Other places with the same name (5)

Other cities in LaSalle County

Cities, towns, neighborhoods & other populated places in LaSalle County , IL. (more)

City Name Population Title
Streator 12,933 City in Illinois
Peru 9,612 City in Illinois, United States
La Salle 9,609 City in LaSalle County, Illinois, United States
Mendota 6,904 Township in LaSalle County, Illinois
Northville 6,753 Township in LaSalle County, Illinois
Marseilles 4,778 City in LaSalle County, Illinois
Deer Park 4,199 Village in United States of America
Oglesby 3,526 City in LaSalle Co.
Sheridan 2,515 Village in Illinois, United States
Seneca 2,179 Village in Illinois
Utica 1,988 Village also known as Utica, in LaSalle County, Illinois
Earlville 1,570 City in Delaware County, Iowa, United States of America
Garfield 1,483 Human settlement in Illinois, United States of America
Serena 1,088 Human settlement in Illinois, United States of America
Leland 902 Village in Illinois, United States
Farm Ridge 858 Township in LaSalle County, Illinois

Distance to Other Cities

Ottawa distances to largest Illinois cities