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21220 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 40,399
| 21220 Zip Code | Maryland | U.S. | |
| Total Households | 14,937, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.69, see rank | 2.67 | 2.63 |
| 1 Person Households | 3,836, 25.68%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 11,101, 74.32%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 10,309, 69.02%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.35, see rank | 3.35 | 3.32 |
| Married-Couple Family | 6,901, 46.20%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 4,628, 30.98%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 39,199
| 21220 Zip Code | Maryland | U.S. | |
| Total Households | 15,190, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.57, see rank | 2.61 | 2.58 |
| 1 Person Households | 3,761, 24.76%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 11,429, 75.24%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 10,310, 67.87%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.04, see rank | 3.15 | 3.14 |
| Married-Couple Family | 6,773, 44.59%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 4,880, 32.13%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 39,313
| 21220 Zip Code | Maryland | U.S. | |
| Total Households | 14,922, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.62, see rank | 2.64 | 2.61 |
| 1 Person Households | 3,907, 26.18%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 11,015, 73.82%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 10,013, 67.10%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.28, see rank | 3.32 | 3.29 |
| Married-Couple Family | 6,719, 45.03%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 4,909, 32.90%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 36,551
| 21220 Zip Code | Maryland | U.S. | |
| Total Households | 14,188, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.57, see rank | 2.61 | 2.59 |
| 1 Person Households | 3,245, 22.87%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 10,943, 77.13%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 10,034, 70.72%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.00, see rank | 3.13 | 3.14 |
| Married-Couple Family | 7,071, 49.84%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 4,154, 29.28%, 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.