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New Castle County Historical Household and Family Data
ACS 2010-2014 data
Total population: 545,846
| New Castle County | Delaware | U.S. | |
| Total Households | 201,543, 100% | 339,046 | 116,211,092 |
| Average Household Size | 2.62, see rank | 2.63 | 2.63 |
| 1 Person Households | 55,486, 27.53%, see rank | 26.56% | 27.57% |
| 2 or More Person Households | 146,057, 72.47%, see rank | 73.44% | 72.43% |
| Family Households (Families) | 132,832, 65.91%, see rank | 67.20% | 66.22% |
| Average Family Size | 3.31, see rank | 3.28 | 3.32 |
| Married-Couple Family | 94,750, 47.01%, see rank | 48.44% | 48.42% |
| Nonfamily Households | 68,711, 34.09%, see rank | 32.80% | 33.78% |
US Census 2010 data
Total population: 538,479
| New Castle County | Delaware | U.S. | |
| Total Households | 202,651, 100% | 342,297 | 116,716,292 |
| Average Household Size | 2.57, see rank | 2.55 | 2.58 |
| 1 Person Households | 52,987, 26.15%, see rank | 25.56% | 26.74% |
| 2 or More Person Households | 149,664, 73.85%, see rank | 74.44% | 73.26% |
| Family Households (Families) | 134,743, 66.49%, see rank | 67.41% | 66.43% |
| Average Family Size | 3.11, see rank | 3.06 | 3.14 |
| Married-Couple Family | 94,343, 46.55%, see rank | 48.29% | 48.42% |
| Nonfamily Households | 67,908, 33.51%, see rank | 32.59% | 33.57% |
ACS 2008-2012 data
Total population: 539,665
| New Castle County | Delaware | U.S. | |
| Total Households | 200,618, 100% | 334,076 | 115,226,802 |
| Average Household Size | 2.61, see rank | 2.62 | 2.61 |
| 1 Person Households | 53,104, 26.47%, see rank | 26.17% | 27.45% |
| 2 or More Person Households | 147,514, 73.53%, see rank | 73.83% | 72.55% |
| Family Households (Families) | 134,499, 67.04%, see rank | 67.59% | 66.47% |
| Average Family Size | 3.25, see rank | 3.26 | 3.29 |
| Married-Couple Family | 96,197, 47.95%, see rank | 49.08% | 48.97% |
| Nonfamily Households | 66,119, 32.96%, see rank | 32.41% | 33.53% |
ACS 2006-2010 data
Total population: 533,514
| New Castle County | Delaware | U.S. | |
| Total Households | 198,499, 100% | 331,639 | 114,235,996 |
| Average Household Size | 2.60, see rank | 2.58 | 2.59 |
| 1 Person Households | 53,334, 26.87%, see rank | 26.23% | 27.24% |
| 2 or More Person Households | 145,165, 73.13%, see rank | 73.77% | 72.76% |
| Family Households (Families) | 132,830, 66.92%, see rank | 67.78% | 66.75% |
| Average Family Size | 3.25, see rank | 3.20 | 3.25 |
| Married-Couple Family | 95,660, 48.19%, see rank | 49.60% | 49.60% |
| Nonfamily Households | 65,669, 33.08%, see rank | 32.22% | 33.25% |
ACS 2005-2009 data
Total population: 527,774
| New Castle County | Delaware | U.S. | |
| Total Households | 195,137, 100% | 325,160 | 112,611,029 |
| Average Household Size | 2.61, see rank | 2.58 | 2.60 |
| 1 Person Households | 52,228, 26.76%, see rank | 26.24% | 27.32% |
| 2 or More Person Households | 142,909, 73.24%, see rank | 73.76% | 72.68% |
| Family Households (Families) | 130,611, 66.93%, see rank | 67.69% | 66.67% |
| Average Family Size | 3.27, see rank | 3.20 | 3.27 |
| Married-Couple Family | 94,937, 48.65%, see rank | 49.90% | 49.71% |
| Nonfamily Households | 64,526, 33.07%, see rank | 32.31% | 33.33% |
US Census 2000 data
Total population: 500,265
| New Castle County | Delaware | U.S. | |
| Total Households | 188,935, 100% | 298,736 | 105,480,101 |
| Average Household Size | 2.56, see rank | 2.54 | 2.59 |
| 1 Person Households | 48,563, 25.70%, see rank | 24.98% | 25.82% |
| 2 or More Person Households | 140,372, 74.30%, see rank | 75.02% | 74.18% |
| Family Households (Families) | 127,106, 67.27%, see rank | 68.49% | 68.06% |
| Average Family Size | 3.09, see rank | 3.04 | 3.14 |
| Married-Couple Family | 93,789, 49.64%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 61,829, 32.73%, see rank | 31.51% | 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.