Last official estimated population of Castana city (Monona County**, Iowa state) was 137 (year 2014)[1]. This was 0% of total US population and 0% of total Iowa state population. Area of Castana city is 0.9 mi² (=2.4 km²)[6], in this year population density was 147.95 p/mi². If population growth rate would be same as in period 2010-2014 (-1.75%/yr), Castana city population in 2026 would be 111*.
Historical population of Castana city for period 1900-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1900-1910] +0.25 %/yr
[1910-1920] +0.67 %/yr
[1920-1930] -1.51 %/yr
[1930-1940] +0.06 %/yr
[1940-1950] -2.35 %/yr
[1950-1960] -1.41 %/yr
[1960-1970] -0.86 %/yr
[1970-1980] +0.78 %/yr
[1980-1990] -3.54 %/yr
[1990-2000] +1.14 %/yr
[2000-2005] -1.99 %/yr
[2005-2010] -1.8 %/yr
[2010-2014] -1.75 %/yr
• Onawa city population
9.8 mi, 
250°
• Mapleton city
8.9 mi, 
43°
• Whiting city
12.9 mi, 
286°
• Ute city
10.6 mi, 
98°
• Smithland city
10.8 mi, 
354°
• Moorhead city
10.7 mi, 
163°
• Blencoe city
13.2 mi, 
221°
• Soldier city
9.1 mi, 
132°
• Turin city
4.6 mi, 218°
• Rodney city
9.3 mi, 347°
*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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