Last official estimated population of Thornton city (Adams County**, Colorado state) was 130,307 (year 2014)[1]. This was 0.041% of total US population and 2.39% of total Colorado state population. Area of Thornton city is 36.8 mi² (=95.2 km²)[6], in this year population density was 3,544.61 p/mi². If population growth rate would be same as in period 2010-2014 (+2.34%/yr), Thornton city population in 2024 would be 164,287*.
Historical population of Thornton city for period 1960-2014:
Estimated population for 2014[1]. Click on flag to hide it.
Population • Legends • Position
[1960-1970] +1.62 %/yr
[1970-1980] +12.18 %/yr
[1980-1990] +2.75 %/yr
[1990-2000] +4.11 %/yr
[2000-2005] +4.13 %/yr
[2005-2010] +3.29 %/yr
[2010-2014] +2.34 %/yr
• Westminster city population
6.9 mi, 248°
• Broomfield city
6.2 mi, 292°
• Commerce City city
8.2 mi, 107°
• Northglenn city
2 mi, 253°
• Brighton city
8.4 mi, 67°
• Lafayette city
9.8 mi, 302°
• Erie town
9.7 mi, 327°
• Louisville city
11.2 mi, 288°
• Federal Heights city
5.4 mi, 225°
• Dacono city
10 mi, 358°
*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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