Last official estimated population of Williamson city (Lucas County**, Iowa state) was 150 (year 2014)[1]. This was 0% of total US population and 0% of total Iowa state population. Area of Williamson city is 0.3 mi² (=0.8 km²)[6], in this year population density was 467.29 p/mi². If population growth rate would be same as in period 2010-2014 (-0.33%/yr), Williamson city population in 2024 would be 145*.
Historical population of Williamson city for period 1930-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1930-1940] -2.75 %/yr
[1940-1950] -7.13 %/yr
[1950-1960] -1.15 %/yr
[1960-1970] -1.91 %/yr
[1970-1980] -0.28 %/yr
[1980-1990] -2.32 %/yr
[1990-2000] -0.24 %/yr
[2000-2005] 0 %/yr
[2005-2010] -1.27 %/yr
[2010-2014] -0.33 %/yr
• Chariton city population
5.6 mi, 209°
• Melcher-Dallas city
9.7 mi, 4°
• Milo city
16.8 mi, 325°
• Russell city
8 mi, 158°
• Lacona city
9.7 mi, 316°
• Lucas city
11.3 mi, 250°
• Derby city
15.1 mi, 223°
• Melrose city
13.1 mi, 125°
• Marysville city
17.1 mi, 67°
• Millerton city
16.7 mi, 188°
*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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