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Castle Rock, CO Historical Language Spoken at Home Data
ACS 2010-2014 data
Total population: 51,802
| Castle Rock, CO | % | Colorado | U.S. | |
| English | 15,520 | 87.35%, see rank | 82.34% | 79.39% |
| Spanish | 1,304 | 7.34%, see rank | 11.41% | 11.75% |
| Other Indo-European Languages | 614 | 3.46%, see rank | 3.32% | 4.52% |
| Asian and Pacific Islander Languages | 271 | 1.53%, see rank | 2.07% | 3.36% |
| Other | 58 | 0.33%, see rank | 0.86% | 0.99% |
ACS 2008-2012 data
Total population: 48,321
| Castle Rock, CO | % | Colorado | U.S. | |
| English | 14,525 | 86.38%, see rank | 82.20% | 79.64% |
| Spanish | 1,191 | 7.08%, see rank | 11.51% | 11.57% |
| Other Indo-European Languages | 773 | 4.60%, see rank | 3.40% | 4.61% |
| Asian and Pacific Islander Languages | 285 | 1.69%, see rank | 2.04% | 3.24% |
| Other | 41 | 0.24%, see rank | 0.85% | 0.94% |
ACS 2006-2010 data
Total population: 44,402
| Castle Rock, CO | % | Colorado | U.S. | |
| English | 13,770 | 87.85%, see rank | 82.06% | 79.95% |
| Spanish | 1,002 | 6.39%, see rank | 11.68% | 11.42% |
| Other Indo-European Languages | 670 | 4.27%, see rank | 3.39% | 4.60% |
| Asian and Pacific Islander Languages | 222 | 1.42%, see rank | 2.10% | 3.14% |
| Other | 11 | 0.07%, see rank | 0.77% | 0.89% |
ACS 2005-2009 data
Total population: 41,320
| Castle Rock, CO | % | Colorado | U.S. | |
| English | 12,522 | 87.93%, see rank | 82.13% | 80.35% |
| Spanish | 911 | 6.40%, see rank | 11.74% | 11.21% |
| Other Indo-European Languages | 529 | 3.71%, see rank | 3.46% | 4.62% |
| Asian and Pacific Islander Languages | 265 | 1.86%, see rank | 1.93% | 2.95% |
| Other | 14 | 0.10%, see rank | 0.74% | 0.87% |
US Census 2000 data
Total population: 20,224
| Castle Rock, CO | % | Colorado | U.S. | |
| English | 6,490 | 89.16%, see rank | 82.46% | 81.14% |
| Spanish | 378 | 5.19%, see rank | 11.31% | 10.21% |
| Other Indo-European Languages | 360 | 4.95%, see rank | 3.94% | 5.22% |
| Asian and Pacific Islander Languages | 42 | 0.58%, see rank | 1.71% | 2.61% |
| Other | 9 | 0.12%, see rank | 0.58% | 0.82% |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.