Baltimore County Historical Household and Family Data
ACS 2010-2014 data
Total population: 817,720
| Baltimore County | Maryland | U.S. | |
| Total Households | 313,408, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.54, see rank | 2.67 | 2.63 |
| 1 Person Households | 90,595, 28.91%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 222,813, 71.09%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 203,880, 65.05%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.24, see rank | 3.35 | 3.32 |
| Married-Couple Family | 144,373, 46.07%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 109,528, 34.95%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 805,029
| Baltimore County | Maryland | U.S. | |
| Total Households | 316,715, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.48, see rank | 2.61 | 2.58 |
| 1 Person Households | 89,478, 28.25%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 227,237, 71.75%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 205,113, 64.76%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.04, see rank | 3.15 | 3.14 |
| Married-Couple Family | 144,119, 45.50%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 111,602, 35.24%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 807,318
| Baltimore County | Maryland | U.S. | |
| Total Households | 314,823, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.50, see rank | 2.64 | 2.61 |
| 1 Person Households | 92,574, 29.41%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 222,249, 70.59%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 203,327, 64.58%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.19, see rank | 3.32 | 3.29 |
| Married-Couple Family | 146,668, 46.59%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 111,496, 35.42%, see rank | 33.03% | 33.53% |
ACS 2006-2010 data
Total population: 799,195
| Baltimore County | Maryland | U.S. | |
| Total Households | 315,542, 100% | 2,121,047 | 114,235,996 |
| Average Household Size | 2.47, see rank | 2.62 | 2.59 |
| 1 Person Households | 92,236, 29.23%, see rank | 26.92% | 27.24% |
| 2 or More Person Households | 223,306, 70.77%, see rank | 73.08% | 72.76% |
| Family Households (Families) | 203,275, 64.42%, see rank | 67.11% | 66.75% |
| Average Family Size | 3.15, see rank | 3.28 | 3.25 |
| Married-Couple Family | 147,666, 46.80%, see rank | 48.59% | 49.60% |
| Nonfamily Households | 112,267, 35.58%, see rank | 32.89% | 33.25% |
ACS 2005-2009 data
Total population: 786,697
| Baltimore County | Maryland | U.S. | |
| Total Households | 310,459, 100% | 2,092,538 | 112,611,029 |
| Average Household Size | 2.47, see rank | 2.63 | 2.60 |
| 1 Person Households | 90,499, 29.15%, see rank | 27.08% | 27.32% |
| 2 or More Person Households | 219,960, 70.85%, see rank | 72.92% | 72.68% |
| Family Households (Families) | 199,969, 64.41%, see rank | 66.92% | 66.67% |
| Average Family Size | 3.14, see rank | 3.30 | 3.27 |
| Married-Couple Family | 145,580, 46.89%, see rank | 48.74% | 49.71% |
| Nonfamily Households | 110,490, 35.59%, see rank | 33.08% | 33.33% |
US Census 2000 data
Total population: 754,292
| Baltimore County | Maryland | U.S. | |
| Total Households | 299,877, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.46, see rank | 2.61 | 2.59 |
| 1 Person Households | 81,863, 27.30%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 218,014, 72.70%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 198,605, 66.23%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.00, see rank | 3.13 | 3.14 |
| Married-Couple Family | 148,099, 49.39%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 101,272, 33.77%, see rank | 31.38% | 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.