Population.us > Settlements > Illinois > O'Fallon city

Population of O'Fallon, IL

Last official estimated population of O'Fallon city (St. Clair County**, Illinois state) was 29,069 (year 2014)[1]. This was 0.009% of total US population and 0.23% of total Illinois state population. Area of O'Fallon city is 15.0 mi² (=38.8 km²)[6], in this year population density was 1,940.78 p/mi². If population growth rate would be same as in period 2010-2014 (+0.69%/yr), O'Fallon city population in 2022 would be 30,711*.


Historical population

Historical population of O'Fallon city for period 1870-2014:

O'Fallon city on population map

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

PopulationLegendsPosition

Do you like population.us?

Ads

Annual growth rate

[1870-1880] -1.91 %/yr
[1880-1890] -0.63 %/yr
[1890-1900] +3.89 %/yr
[1900-1910] +4.76 %/yr
[1910-1920] +1.66 %/yr
[1920-1930] -0.03 %/yr
[1930-1940] +0.14 %/yr
[1940-1950] +2.3 %/yr
[1950-1960] +2.89 %/yr
[1960-1970] +6.11 %/yr
[1970-1980] +5.29 %/yr
[1980-1990] +3.12 %/yr
[1990-2000] +2.86 %/yr
[2000-2005] +2.69 %/yr
[2005-2010] +2.45 %/yr
[2010-2014] +0.69 %/yr

Search


Settlements near O'Fallon city

Belleville city population 7 mi, 213°
Collinsville city 7.2 mi, 317°
Fairview Heights city 4.8 mi, 266°
Swansea village 5.1 mi, 229°
Shiloh village 3.3 mi, 179°
Troy city 9.1 mi,
Mascoutah city 8.4 mi, 132°
Lebanon city 5.5 mi, 88°
Caseyville village 6.7 mi, 288°
Summerfield village 9 mi, 91°


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

Page generated in 0.009 seconds

© 2016 population.us | Terms of use | Contact