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21156 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 373
| 21156 Zip Code | Maryland | U.S. | |
| Total Households | 178, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.10, see rank | 2.67 | 2.63 |
| 1 Person Households | 67, 37.64%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 111, 62.36%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 101, 56.74%, see rank | 67.07% | 66.22% |
| Average Family Size | 2.77, see rank | 3.35 | 3.32 |
| Married-Couple Family | 80, 44.94%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 77, 43.26%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 358
| 21156 Zip Code | Maryland | U.S. | |
| Total Households | 133, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.69, see rank | 2.61 | 2.58 |
| 1 Person Households | 29, 21.80%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 104, 78.20%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 100, 75.19%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.15, see rank | 3.15 | 3.14 |
| Married-Couple Family | 82, 61.65%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 33, 24.81%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 388
| 21156 Zip Code | Maryland | U.S. | |
| Total Households | 147, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.64, see rank | 2.64 | 2.61 |
| 1 Person Households | 47, 31.97%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 100, 68.03%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 92, 62.59%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.49, see rank | 3.32 | 3.29 |
| Married-Couple Family | 76, 51.70%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 55, 37.41%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 453
| 21156 Zip Code | Maryland | U.S. | |
| Total Households | 160, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.79, see rank | 2.61 | 2.59 |
| 1 Person Households | 23, 14.38%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 137, 85.63%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 131, 81.88%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.14, see rank | 3.13 | 3.14 |
| Married-Couple Family | 123, 76.88%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 29, 18.13%, 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.