Latest Data (2015)
Population 133,451
Nationwide Rank 196

Quick Facts

Thornton, Colorado is the 196th largest city in the United States as of 2015.

Thornton, Colorado is a city.

Thornton, Colorado is as large as it has ever been. In 2015 Thornton had its largest population ever.

Thornton, Colorado is growing extremely quickly. It is growing faster than 90% of similarly sized cities since 2000.

Thornton, Colorado Border Map

Similarly Sized Cities

Rank Name Growth
2000-2015
190 Miramar, Florida 83.9%
191 Hampton, Virginia -6.8%
192 West Valley City, Utah 24.6%
193 Warren, Michigan -1.9%
194 Olathe, Kansas 43.0%
195 Columbia, South Carolina 12.0%
196 Thornton, Colorado 60.2%
197 Carrollton, Texas 20.7%
198 Midland, Texas 39.9%
199 Charleston, South Carolina 33.9%
200 Waco, Texas 15.4%
201 Sterling Heights, Michigan 5.9%
202 Denton, Texas 56.6%

Demographics

Population History

Year Population Rank in US
2015 133,451 196
2014 130,307 197
2013 127,359 205
2012 124,140 212
2011 121,690 212
2010 118,772 212
2009 117,628 213
2008 114,197 218
2007 110,653 225
2006 107,444 227
2005 103,815 239
2004 100,653 250
2003 96,952 261
2002 93,436 273
2001 88,112 295
2000 83,269 318
1990 55,146 452