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21755 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 6,040
| 21755 Zip Code | Maryland | U.S. | |
| Total Households | 2,193, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.73, see rank | 2.67 | 2.63 |
| 1 Person Households | 333, 15.18%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 1,860, 84.82%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 1,739, 79.30%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.10, see rank | 3.35 | 3.32 |
| Married-Couple Family | 1,488, 67.85%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 454, 20.70%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 5,591
| 21755 Zip Code | Maryland | U.S. | |
| Total Households | 2,023, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.74, see rank | 2.61 | 2.58 |
| 1 Person Households | 341, 16.86%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 1,682, 83.14%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 1,608, 79.49%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.07, see rank | 3.15 | 3.14 |
| Married-Couple Family | 1,374, 67.92%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 415, 20.51%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 5,549
| 21755 Zip Code | Maryland | U.S. | |
| Total Households | 2,070, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.65, see rank | 2.64 | 2.61 |
| 1 Person Households | 320, 15.46%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 1,750, 84.54%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 1,686, 81.45%, see rank | 66.97% | 66.47% |
| Average Family Size | 2.98, see rank | 3.32 | 3.29 |
| Married-Couple Family | 1,431, 69.13%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 384, 18.55%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 5,430
| 21755 Zip Code | Maryland | U.S. | |
| Total Households | 1,913, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.81, see rank | 2.61 | 2.59 |
| 1 Person Households | 283, 14.79%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 1,630, 85.21%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 1,560, 81.55%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.13, see rank | 3.13 | 3.14 |
| Married-Couple Family | 1,384, 72.35%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 353, 18.45%, 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.