Ada County Historical Language Spoken at Home Data
ACS 2010-2014 data
Total population: 409,239
| Ada County | % | Idaho | U.S. | |
| English | 139,205 | 90.15%, see rank | 88.49% | 79.39% |
| Spanish | 7,323 | 4.74%, see rank | 7.89% | 11.75% |
| Other Indo-European Languages | 4,086 | 2.65%, see rank | 2.05% | 4.52% |
| Asian and Pacific Islander Languages | 2,866 | 1.86%, see rank | 1.07% | 3.36% |
| Other | 928 | 0.60%, see rank | 0.50% | 0.99% |
ACS 2008-2012 data
Total population: 394,961
| Ada County | % | Idaho | U.S. | |
| English | 134,275 | 89.59%, see rank | 88.47% | 79.64% |
| Spanish | 7,424 | 4.95%, see rank | 7.79% | 11.57% |
| Other Indo-European Languages | 4,424 | 2.95%, see rank | 2.19% | 4.61% |
| Asian and Pacific Islander Languages | 3,069 | 2.05%, see rank | 1.11% | 3.24% |
| Other | 692 | 0.46%, see rank | 0.43% | 0.94% |
ACS 2006-2010 data
Total population: 380,718
| Ada County | % | Idaho | U.S. | |
| English | 129,519 | 88.97%, see rank | 88.21% | 79.95% |
| Spanish | 7,999 | 5.49%, see rank | 7.97% | 11.42% |
| Other Indo-European Languages | 4,425 | 3.04%, see rank | 2.23% | 4.60% |
| Asian and Pacific Islander Languages | 2,936 | 2.02%, see rank | 1.09% | 3.14% |
| Other | 705 | 0.48%, see rank | 0.50% | 0.89% |
ACS 2005-2009 data
Total population: 368,791
| Ada County | % | Idaho | U.S. | |
| English | 125,404 | 88.49%, see rank | 88.22% | 80.35% |
| Spanish | 8,462 | 5.97%, see rank | 8.01% | 11.21% |
| Other Indo-European Languages | 4,344 | 3.07%, see rank | 2.21% | 4.62% |
| Asian and Pacific Islander Languages | 2,727 | 1.92%, see rank | 1.05% | 2.95% |
| Other | 782 | 0.55%, see rank | 0.51% | 0.87% |
US Census 2000 data
Total population: 300,904
| Ada County | % | Idaho | U.S. | |
| English | 101,349 | 89.23%, see rank | 88.38% | 81.14% |
| Spanish | 5,634 | 4.96%, see rank | 7.44% | 10.21% |
| Other Indo-European Languages | 4,033 | 3.55%, see rank | 2.69% | 5.22% |
| Asian and Pacific Islander Languages | 1,953 | 1.72%, see rank | 0.99% | 2.61% |
| Other | 608 | 0.54%, see rank | 0.50% | 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.