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Westmoreland County Historical Language Spoken at Home Data
ACS 2010-2014 data
Total population: 362,587
| Westmoreland County | % | Pennsylvania | U.S. | |
| English | 144,547 | 95.42%, see rank | 88.50% | 79.39% |
| Spanish | 2,027 | 1.34%, see rank | 4.69% | 11.75% |
| Other Indo-European Languages | 3,734 | 2.46%, see rank | 4.40% | 4.52% |
| Asian and Pacific Islander Languages | 998 | 0.66%, see rank | 1.81% | 3.36% |
| Other | 183 | 0.12%, see rank | 0.60% | 0.99% |
ACS 2008-2012 data
Total population: 364,877
| Westmoreland County | % | Pennsylvania | U.S. | |
| English | 145,357 | 94.96%, see rank | 88.62% | 79.64% |
| Spanish | 2,162 | 1.41%, see rank | 4.58% | 11.57% |
| Other Indo-European Languages | 4,343 | 2.84%, see rank | 4.54% | 4.61% |
| Asian and Pacific Islander Languages | 979 | 0.64%, see rank | 1.69% | 3.24% |
| Other | 223 | 0.15%, see rank | 0.57% | 0.94% |
ACS 2006-2010 data
Total population: 365,841
| Westmoreland County | % | Pennsylvania | U.S. | |
| English | 144,802 | 94.87%, see rank | 88.76% | 79.95% |
| Spanish | 2,217 | 1.45%, see rank | 4.46% | 11.42% |
| Other Indo-European Languages | 4,692 | 3.07%, see rank | 4.58% | 4.60% |
| Asian and Pacific Islander Languages | 709 | 0.46%, see rank | 1.65% | 3.14% |
| Other | 220 | 0.14%, see rank | 0.56% | 0.89% |
ACS 2005-2009 data
Total population: 363,222
| Westmoreland County | % | Pennsylvania | U.S. | |
| English | 143,711 | 94.59%, see rank | 89.18% | 80.35% |
| Spanish | 2,023 | 1.33%, see rank | 4.16% | 11.21% |
| Other Indo-European Languages | 5,147 | 3.39%, see rank | 4.62% | 4.62% |
| Asian and Pacific Islander Languages | 718 | 0.47%, see rank | 1.50% | 2.95% |
| Other | 337 | 0.22%, see rank | 0.54% | 0.87% |
US Census 2000 data
Total population: 369,993
| Westmoreland County | % | Pennsylvania | U.S. | |
| English | 140,499 | 93.75%, see rank | 89.23% | 81.14% |
| Spanish | 2,510 | 1.67%, see rank | 3.71% | 10.21% |
| Other Indo-European Languages | 6,018 | 4.02%, see rank | 5.35% | 5.22% |
| Asian and Pacific Islander Languages | 549 | 0.37%, see rank | 1.23% | 2.61% |
| Other | 294 | 0.20%, see rank | 0.48% | 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.