Population.us > Settlements > Illinois > Ottawa city

Population of Ottawa, IL

Last official estimated population of Ottawa city (LaSalle County**, Illinois state) was 18,428 (year 2014)[1]. This was 0.006% of total US population and 0.14% of total Illinois state population. Area of Ottawa city is 12.7 mi² (=33 km²)[6], in this year population density was 1,445.79 p/mi². If population growth rate would be same as in period 2010-2014 (-0.46%/yr), Ottawa city population in 2022 would be 17,766*.


Historical population

Historical population of Ottawa city for period 1870-2014:

Ottawa city on population map

Estimated population for 2014[1]. Click on flag to hide it.

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Annual growth rate

[1870-1880] +0.13 %/yr
[1880-1890] +2.46 %/yr
[1890-1900] +0.59 %/yr
[1900-1910] -1.04 %/yr
[1910-1920] +1.27 %/yr
[1920-1930] +3.39 %/yr
[1930-1940] +0.59 %/yr
[1940-1950] +0.58 %/yr
[1950-1960] +1.36 %/yr
[1960-1970] -0.36 %/yr
[1970-1980] -0.3 %/yr
[1980-1990] -0.22 %/yr
[1990-2000] +0.45 %/yr
[2000-2005] +0.07 %/yr
[2005-2010] +0.13 %/yr
[2010-2014] -0.46 %/yr

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Settlements near Ottawa city

LaSalle city population 12.1 mi, 271°
Marseilles city 9.2 mi, 122°
Oglesby city 13 mi, 252°
Seneca village 11.5 mi, 113°
Sheridan village 14.5 mi, 32°
North Utica village 9.8 mi, 270°
Grand Ridge village 8 mi, 179°
Naplate village 2.8 mi, 239°
Kangley village 14.3 mi, 188°
Leonore village 13.8 mi, 214°


Sources, notices

*Calculated by population.us from last known population growth rate, not official data.

**Some cities are placed on more than one county. Only 1 county is shown.

[1] Cities and Towns (Incorporated Places and Minor Civil Divisions) 2014, archived from the original, retrieved 02/23/2016

[2] City and Town Intercensal Estimates (2000-2010), archived from the original, retrieved 02/23/2016

[3] Places: 1990 and 1999 Populations, With Numeric and Percent Population Change, archived from the original, retrieved 02/23/2016

[4] Population of the 100 Largest Urban Places: 1980,

[5] Population of the 100 Largest Urban Places in history,

[6] Area, latitude longitude data, retrieved 02/23/2016

[7] Through the Decades, Overview 1790-2010, PDF, large files! >100 Mb

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