Last official estimated population of Jefferson city (Union County**, South Dakota state) was 535 (year 2014)[1]. This was 0% of total US population and 0.06% of total South Dakota state population. Area of Jefferson city is 0.5 mi² (=1.3 km²)[6], in this year population density was 1,049.02 p/mi². If population growth rate would be same as in period 2010-2014 (-0.55%/yr), Jefferson city population in 2024 would be 506*.
Historical population of Jefferson city for period 1880-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1880-1890] +9.79 %/yr
[1890-1900] +4.74 %/yr
[1900-1910] +1.12 %/yr
[1910-1920] +3.06 %/yr
[1920-1930] -2.52 %/yr
[1930-1940] +0.97 %/yr
[1940-1950] -0.06 %/yr
[1950-1960] -0.5 %/yr
[1960-1970] +0.68 %/yr
[1970-1980] +2.25 %/yr
[1980-1990] -1.16 %/yr
[1990-2000] +1.03 %/yr
[2000-2005] -1.3 %/yr
[2005-2010] 0 %/yr
[2010-2014] -0.55 %/yr
• Sioux City city population
11.7 mi, 130°
• South Sioux City city
12.4 mi, 141°
• North Sioux City city
6.1 mi, 146°
• Elk Point city
7.9 mi, 312°
• Dakota City city
14.8 mi, 150°
• Hinton city
13.7 mi, 85°
• Ponca city
7.8 mi, 249°
• Jackson village
10.8 mi, 181°
• Westfield city
10.7 mi, 349°
• Waterbury village
13.3 mi, 220°
*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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