Latest Data (2017)
Population 136,978
Nationwide Rank 192

Quick Facts

Thornton, Colorado is the 192nd largest city in the United States as of 2017.

Thornton, Colorado is a city.

Thornton, Colorado is as large as it has ever been. In 2017 Thornton had its largest population ever.

Thornton, Colorado is growing moderately quickly. It is growing faster than 89% of similarly sized cities since 2000.

Thornton, Colorado Border Map

Similarly Sized Cities In US

US Rank Name Population Growth
2000-2017
182 Bellevue, Washington 144,444 28.4%
183 Mesquite, Texas 143,949 15.1%
184 Syracuse, New York 143,396 -1.8%
185 McAllen, Texas 142,696 33.3%
186 Pasadena, California 142,647 6.0%
187 Orange, California 140,560 8.1%
188 Fullerton, California 140,392 10.9%
189 Dayton, Ohio 140,371 -15.3%
190 Miramar, Florida 140,328 88.2%
191 Olathe, Kansas 137,472 46.4%
192 Thornton, Colorado 136,978 64.5%
193 Waco, Texas 136,436 19.0%
194 Murfreesboro, Tennessee 136,372 92.4%
195 Denton, Texas 136,268 62.9%
196 West Valley City, Utah 136,170 24.6%
197 Midland, Texas 136,089 43.2%
198 Carrollton, Texas 135,710 23.0%
199 Roseville, California 135,329 66.4%
200 Warren, Michigan 135,022 -2.2%
201 Charleston, South Carolina 134,875 36.2%
202 Hampton, Virginia 134,669 -8.0%

Similarly Sized Cities In Colorado

US Rank Name Population Growth
2000-2017
158 Fort Collins 165,080 37.4%
164 Lakewood 154,958 7.3%
192 Thornton 136,978 64.5%
236 Arvada 118,807 16.1%
257 Westminster 112,812 11.3%
264 Pueblo 111,127 8.8%
270 Centennial 110,250 7.6%
280 Boulder 107,125 13.2%
288 Greeley 105,448 34.5%
335 Longmont 94,341 30.5%
452 Loveland 76,701 47.8%

Demographics

Population History

Year Population Rank in US
2017 136,978 192
2016 136,703 191
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