USA.com / California / Contra Costa County / Population and Races / Historical Language Spoken at Home Data
Contra Costa County Historical Language Spoken at Home Data
ACS 2010-2014 data
Total population: 1,081,232
| Contra Costa County | % | California | U.S. | |
| English | 251,361 | 66.12%, see rank | 57.63% | 79.39% |
| Spanish | 59,563 | 15.67%, see rank | 25.11% | 11.75% |
| Other Indo-European Languages | 25,503 | 6.71%, see rank | 5.77% | 4.52% |
| Asian and Pacific Islander Languages | 39,679 | 10.44%, see rank | 10.40% | 3.36% |
| Other | 4,077 | 1.07%, see rank | 1.09% | 0.99% |
ACS 2008-2012 data
Total population: 1,052,047
| Contra Costa County | % | California | U.S. | |
| English | 250,166 | 67.04%, see rank | 58.28% | 79.64% |
| Spanish | 57,475 | 15.40%, see rank | 24.75% | 11.57% |
| Other Indo-European Languages | 25,245 | 6.77%, see rank | 5.78% | 4.61% |
| Asian and Pacific Islander Languages | 36,652 | 9.82%, see rank | 10.14% | 3.24% |
| Other | 3,607 | 0.97%, see rank | 1.05% | 0.94% |
ACS 2006-2010 data
Total population: 1,024,809
| Contra Costa County | % | California | U.S. | |
| English | 249,454 | 67.77%, see rank | 58.93% | 79.95% |
| Spanish | 55,959 | 15.20%, see rank | 24.56% | 11.42% |
| Other Indo-European Languages | 25,059 | 6.81%, see rank | 5.64% | 4.60% |
| Asian and Pacific Islander Languages | 34,008 | 9.24%, see rank | 9.86% | 3.14% |
| Other | 3,607 | 0.98%, see rank | 1.01% | 0.89% |
ACS 2005-2009 data
Total population: 1,015,571
| Contra Costa County | % | California | U.S. | |
| English | 248,576 | 68.23%, see rank | 59.60% | 80.35% |
| Spanish | 54,400 | 14.93%, see rank | 24.44% | 11.21% |
| Other Indo-European Languages | 25,365 | 6.96%, see rank | 5.62% | 4.62% |
| Asian and Pacific Islander Languages | 32,428 | 8.90%, see rank | 9.34% | 2.95% |
| Other | 3,567 | 0.98%, see rank | 1.00% | 0.87% |
US Census 2000 data
Total population: 948,816
| Contra Costa County | % | California | U.S. | |
| English | 252,678 | 73.36%, see rank | 62.22% | 81.14% |
| Spanish | 41,248 | 11.98%, see rank | 22.40% | 10.21% |
| Other Indo-European Languages | 21,895 | 6.36%, see rank | 5.84% | 5.22% |
| Asian and Pacific Islander Languages | 25,784 | 7.49%, see rank | 8.55% | 2.61% |
| Other | 2,817 | 0.82%, see rank | 0.99% | 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.