USA.com / Maryland / Washington County / Rohrersville, MD / 21779 / Population and Races / Historical Household and Family Data
21779 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 853
| 21779 Zip Code | Maryland | U.S. | |
| Total Households | 351, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.43, see rank | 2.67 | 2.63 |
| 1 Person Households | 61, 17.38%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 290, 82.62%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 261, 74.36%, see rank | 67.07% | 66.22% |
| Average Family Size | 2.80, see rank | 3.35 | 3.32 |
| Married-Couple Family | 184, 52.42%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 90, 25.64%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 983
| 21779 Zip Code | Maryland | U.S. | |
| Total Households | 371, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.65, see rank | 2.61 | 2.58 |
| 1 Person Households | 71, 19.14%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 300, 80.86%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 280, 75.47%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.04, see rank | 3.15 | 3.14 |
| Married-Couple Family | 236, 63.61%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 91, 24.53%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 1,019
| 21779 Zip Code | Maryland | U.S. | |
| Total Households | 402, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.53, see rank | 2.64 | 2.61 |
| 1 Person Households | 42, 10.45%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 360, 89.55%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 334, 83.08%, see rank | 66.97% | 66.47% |
| Average Family Size | 2.76, see rank | 3.32 | 3.29 |
| Married-Couple Family | 273, 67.91%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 68, 16.92%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 718
| 21779 Zip Code | Maryland | U.S. | |
| Total Households | 256, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.80, see rank | 2.61 | 2.59 |
| 1 Person Households | 34, 13.28%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 222, 86.72%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 207, 80.86%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.09, see rank | 3.13 | 3.14 |
| Married-Couple Family | 179, 69.92%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 49, 19.14%, 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.