Last official estimated population of Ionia town (Benton County**, Missouri state) was 87 (year 2014)[1]. This was 0% of total US population and 0% of total Missouri state population. Area of Ionia town is 0.1 mi² (=0.4 km²)[6], in this year population density was 587.84 p/mi². If population growth rate would be same as in period 2010-2014 (-0.29%/yr), Ionia town population in 2025 would be 84*.
Historical population of Ionia town for period 1910-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1910-1920] +2.31 %/yr
[1920-1930] +0.22 %/yr
[1930-1940] -1.51 %/yr
[1940-1950] +0.34 %/yr
[1950-1960] -0.51 %/yr
[1960-1970] +2.85 %/yr
[1970-1980] -1.41 %/yr
[1980-1990] -0.39 %/yr
[1990-2000] -1.53 %/yr
[2000-2005] -1.53 %/yr
[2005-2010] -2.52 %/yr
[2010-2014] -0.29 %/yr
• Sedalia city population
14.6 mi, 
19°
• Windsor city
11 mi, 
280°
• Warsaw city
17.7 mi, 
187°
• Lincoln city
7.6 mi, 
182°
• Cole Camp city
7.2 mi, 
114°
• Stover city
18.5 mi, 
103°
• Smithton city
17.5 mi, 
45°
• Green Ridge city
9.4 mi, 
330°
• Calhoun city
16.4 mi, 
261°
• Tightwad village
18.1 mi, 
220°
*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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