Last official estimated population of Clayton city (St. Louis County**, Missouri state) was 15,882 (year 2014)[1]. This was 0.005% of total US population and 0.26% of total Missouri state population. Area of Clayton city is 2.5 mi² (=6.4 km²)[6], in this year population density was 6,409.20 p/mi². If population growth rate would be same as in period 2010-2014 (-0.09%/yr), Clayton city population in 2025 would be 15,726*.
Historical population of Clayton city for period 1890-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1890-1920] +6.96 %/yr
[1920-1930] +12.25 %/yr
[1930-1940] +3.12 %/yr
[1940-1950] +2.07 %/yr
[1950-1960] -0.5 %/yr
[1960-1970] +0.55 %/yr
[1970-1980] -1.23 %/yr
[1980-1990] +0.02 %/yr
[1990-2000] -1.12 %/yr
[2000-2005] +2.46 %/yr
[2005-2010] +2.07 %/yr
[2010-2014] -0.09 %/yr
• University City city population
1.5 mi, 
357°
• Ladue city
2.8 mi, 
260°
• Richmond Heights city
0.9 mi, 
189°
• Brentwood city
2 mi, 
208°
• Maplewood city
2.3 mi, 
171°
• Pagedale city
2.7 mi, 
25°
• Wellston city
2.9 mi, 
42°
• Hanley Hills village
2.9 mi, 
5°
• Vinita Park city
3.1 mi, 
350°
• Vinita Terrace village
2.8 mi, 
0°
*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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