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21157 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 37,094
| 21157 Zip Code | Maryland | U.S. | |
| Total Households | 13,722, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.56, see rank | 2.67 | 2.63 |
| 1 Person Households | 3,532, 25.74%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 10,190, 74.26%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 9,326, 67.96%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.15, see rank | 3.35 | 3.32 |
| Married-Couple Family | 7,388, 53.84%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 4,396, 32.04%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 36,920
| 21157 Zip Code | Maryland | U.S. | |
| Total Households | 13,683, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.58, see rank | 2.61 | 2.58 |
| 1 Person Households | 3,526, 25.77%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 10,157, 74.23%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 9,418, 68.83%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.09, see rank | 3.15 | 3.14 |
| Married-Couple Family | 7,619, 55.68%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 4,265, 31.17%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 37,990
| 21157 Zip Code | Maryland | U.S. | |
| Total Households | 13,735, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.60, see rank | 2.64 | 2.61 |
| 1 Person Households | 3,618, 26.34%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 10,117, 73.66%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 9,382, 68.31%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.23, see rank | 3.32 | 3.29 |
| Married-Couple Family | 7,602, 55.35%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 4,353, 31.69%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 34,512
| 21157 Zip Code | Maryland | U.S. | |
| Total Households | 12,551, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.61, see rank | 2.61 | 2.59 |
| 1 Person Households | 2,906, 23.15%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 9,645, 76.85%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 9,012, 71.80%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.09, see rank | 3.13 | 3.14 |
| Married-Couple Family | 7,436, 59.25%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 3,539, 28.20%, 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.