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San Mateo County Historical Language Spoken at Home Data
ACS 2010-2014 data
Total population: 739,837
| San Mateo County | % | California | U.S. | |
| English | 139,465 | 53.91%, see rank | 57.63% | 79.39% |
| Spanish | 44,680 | 17.27%, see rank | 25.11% | 11.75% |
| Other Indo-European Languages | 20,429 | 7.90%, see rank | 5.77% | 4.52% |
| Asian and Pacific Islander Languages | 50,616 | 19.57%, see rank | 10.40% | 3.36% |
| Other | 3,493 | 1.35%, see rank | 1.09% | 0.99% |
ACS 2008-2012 data
Total population: 721,183
| San Mateo County | % | California | U.S. | |
| English | 141,667 | 55.04%, see rank | 58.28% | 79.64% |
| Spanish | 43,677 | 16.97%, see rank | 24.75% | 11.57% |
| Other Indo-European Languages | 20,850 | 8.10%, see rank | 5.78% | 4.61% |
| Asian and Pacific Islander Languages | 47,515 | 18.46%, see rank | 10.14% | 3.24% |
| Other | 3,660 | 1.42%, see rank | 1.05% | 0.94% |
ACS 2006-2010 data
Total population: 704,327
| San Mateo County | % | California | U.S. | |
| English | 143,994 | 56.30%, see rank | 58.93% | 79.95% |
| Spanish | 41,696 | 16.30%, see rank | 24.56% | 11.42% |
| Other Indo-European Languages | 20,288 | 7.93%, see rank | 5.64% | 4.60% |
| Asian and Pacific Islander Languages | 46,109 | 18.03%, see rank | 9.86% | 3.14% |
| Other | 3,671 | 1.44%, see rank | 1.01% | 0.89% |
ACS 2005-2009 data
Total population: 701,886
| San Mateo County | % | California | U.S. | |
| English | 144,146 | 57.01%, see rank | 59.60% | 80.35% |
| Spanish | 40,815 | 16.14%, see rank | 24.44% | 11.21% |
| Other Indo-European Languages | 19,950 | 7.89%, see rank | 5.62% | 4.62% |
| Asian and Pacific Islander Languages | 44,329 | 17.53%, see rank | 9.34% | 2.95% |
| Other | 3,620 | 1.43%, see rank | 1.00% | 0.87% |
US Census 2000 data
Total population: 707,161
| San Mateo County | % | California | U.S. | |
| English | 151,872 | 59.74%, see rank | 62.22% | 81.14% |
| Spanish | 37,427 | 14.72%, see rank | 22.40% | 10.21% |
| Other Indo-European Languages | 23,422 | 9.21%, see rank | 5.84% | 5.22% |
| Asian and Pacific Islander Languages | 38,021 | 14.96%, see rank | 8.55% | 2.61% |
| Other | 3,477 | 1.37%, 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.