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Westmoreland County Historical Household and Family Data
ACS 2010-2014 data
Total population: 362,587
| Westmoreland County | Pennsylvania | U.S. | |
| Total Households | 151,489, 100% | 4,957,736 | 116,211,092 |
| Average Household Size | 2.34, see rank | 2.49 | 2.63 |
| 1 Person Households | 44,029, 29.06%, see rank | 29.56% | 27.57% |
| 2 or More Person Households | 107,460, 70.94%, see rank | 70.44% | 72.43% |
| Family Households (Families) | 100,830, 66.56%, see rank | 64.63% | 66.22% |
| Average Family Size | 2.93, see rank | 3.17 | 3.32 |
| Married-Couple Family | 78,905, 52.09%, see rank | 48.29% | 48.42% |
| Nonfamily Households | 50,659, 33.44%, see rank | 35.37% | 33.78% |
US Census 2010 data
Total population: 365,169
| Westmoreland County | Pennsylvania | U.S. | |
| Total Households | 153,650, 100% | 5,018,904 | 116,716,292 |
| Average Household Size | 2.32, see rank | 2.45 | 2.58 |
| 1 Person Households | 44,520, 28.97%, see rank | 28.56% | 26.74% |
| 2 or More Person Households | 109,130, 71.03%, see rank | 71.44% | 73.26% |
| Family Households (Families) | 101,928, 66.34%, see rank | 64.98% | 66.43% |
| Average Family Size | 2.86, see rank | 3.02 | 3.14 |
| Married-Couple Family | 80,185, 52.19%, see rank | 48.17% | 48.42% |
| Nonfamily Households | 51,722, 33.66%, see rank | 35.02% | 33.57% |
ACS 2008-2012 data
Total population: 364,877
| Westmoreland County | Pennsylvania | U.S. | |
| Total Households | 153,064, 100% | 4,959,633 | 115,226,802 |
| Average Household Size | 2.33, see rank | 2.47 | 2.61 |
| 1 Person Households | 44,070, 28.79%, see rank | 29.31% | 27.45% |
| 2 or More Person Households | 108,994, 71.21%, see rank | 70.69% | 72.55% |
| Family Households (Families) | 102,416, 66.91%, see rank | 65.07% | 66.47% |
| Average Family Size | 2.91, see rank | 3.14 | 3.29 |
| Married-Couple Family | 79,918, 52.21%, see rank | 48.85% | 48.97% |
| Nonfamily Households | 50,648, 33.09%, see rank | 34.93% | 33.53% |
ACS 2006-2010 data
Total population: 365,841
| Westmoreland County | Pennsylvania | U.S. | |
| Total Households | 152,640, 100% | 4,940,581 | 114,235,996 |
| Average Household Size | 2.34, see rank | 2.47 | 2.59 |
| 1 Person Households | 43,845, 28.72%, see rank | 29.10% | 27.24% |
| 2 or More Person Households | 108,795, 71.28%, see rank | 70.90% | 72.76% |
| Family Households (Families) | 102,132, 66.91%, see rank | 65.40% | 66.75% |
| Average Family Size | 2.93, see rank | 3.12 | 3.25 |
| Married-Couple Family | 81,304, 53.27%, see rank | 49.49% | 49.60% |
| Nonfamily Households | 50,508, 33.09%, see rank | 34.60% | 33.25% |
ACS 2005-2009 data
Total population: 363,222
| Westmoreland County | Pennsylvania | U.S. | |
| Total Households | 151,936, 100% | 4,893,127 | 112,611,029 |
| Average Household Size | 2.32, see rank | 2.46 | 2.60 |
| 1 Person Households | 43,769, 28.81%, see rank | 29.06% | 27.32% |
| 2 or More Person Households | 108,167, 71.19%, see rank | 70.94% | 72.68% |
| Family Households (Families) | 101,824, 67.02%, see rank | 65.52% | 66.67% |
| Average Family Size | 2.91, see rank | 3.12 | 3.27 |
| Married-Couple Family | 81,577, 53.69%, see rank | 49.75% | 49.71% |
| Nonfamily Households | 50,112, 32.98%, see rank | 34.48% | 33.33% |
US Census 2000 data
Total population: 369,993
| Westmoreland County | Pennsylvania | U.S. | |
| Total Households | 149,813, 100% | 4,777,003 | 105,480,101 |
| Average Household Size | 2.41, see rank | 2.48 | 2.59 |
| 1 Person Households | 40,229, 26.85%, see rank | 27.65% | 25.82% |
| 2 or More Person Households | 109,584, 73.15%, see rank | 72.35% | 74.18% |
| Family Households (Families) | 104,597, 69.82%, see rank | 67.16% | 68.06% |
| Average Family Size | 2.93, see rank | 3.04 | 3.14 |
| Married-Couple Family | 85,326, 56.96%, see rank | 51.66% | 51.66% |
| Nonfamily Households | 45,216, 30.18%, see rank | 32.84% | 31.94% |
* 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.