Last official estimated population of Westfield city (Plymouth County**, Iowa state) was 130 (year 2014)[1]. This was 0% of total US population and 0% of total Iowa state population. Area of Westfield city is 0.1 mi² (=0.3 km²)[6], in this year population density was 1,015.63 p/mi². If population growth rate would be same as in period 2010-2014 (-0.38%/yr), Westfield city population in 2026 would be 124*.
Historical population of Westfield city for period 1910-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1910-1920] +3.57 %/yr
[1920-1930] +0.72 %/yr
[1930-1940] -1.01 %/yr
[1940-1950] -1.35 %/yr
[1950-1960] +0.84 %/yr
[1960-1970] -2.31 %/yr
[1970-1980] +3.01 %/yr
[1980-1990] -2.16 %/yr
[1990-2000] +1.84 %/yr
[2000-2005] -3.46 %/yr
[2005-2010] -3.89 %/yr
[2010-2014] -0.38 %/yr
• Vermillion city population
16.3 mi, 
276°
• North Sioux City city
16.5 mi, 
160°
• Elk Point city
6.4 mi, 
216°
• Akron city
5.5 mi, 
26°
• Ponca city
14.2 mi, 
201°
• Jefferson city
10.7 mi, 
169°
• Newcastle village
15.4 mi, 
242°
• Brunsville city
17.6 mi, 
77°
• Craig city
17.8 mi, 
57°
• Chatsworth city
12 mi, 
22°
*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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