Last official estimated population of Ortley town (Roberts County**, South Dakota state) was 66 (year 2014)[1]. This was 0% of total US population and 0.01% of total South Dakota state population. Area of Ortley town is 2.2 mi² (=5.8 km²)[6], in this year population density was 29.41 p/mi². If population growth rate would be same as in period 2010-2014 (+0.38%/yr), Ortley town population in 2026 would be 69*.
Historical population of Ortley town for period 1910-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1910-1920] -0.26 %/yr
[1920-1930] -1.73 %/yr
[1930-1940] +1.6 %/yr
[1940-1950] -2.42 %/yr
[1950-1960] -1.25 %/yr
[1960-1970] -1.34 %/yr
[1970-1980] -3.22 %/yr
[1980-1990] -2.36 %/yr
[1990-2000] -1.53 %/yr
[2000-2005] +1.79 %/yr
[2005-2010] +1.96 %/yr
[2010-2014] +0.38 %/yr
• Webster city population
15.4 mi, 
270°
• Waubay city
4.9 mi, 269°
• Wilmot city
17.8 mi, 
73°
• Florence town
20.2 mi, 
196°
• Summit town
8.3 mi, 
104°
• South Shore town
21 mi, 
140°
• Roslyn town
17.9 mi, 
308°
• Peever town
18.7 mi, 
40°
• Grenville town
12.8 mi, 
315°
• Marvin town
15 mi, 
110°
*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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