USA.com / Maryland / Frederick County / Point Of Rocks, MD / 21777 / Population and Races / Historical Household and Family Data
21777 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 1,700
| 21777 Zip Code | Maryland | U.S. | |
| Total Households | 575, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.96, see rank | 2.67 | 2.63 |
| 1 Person Households | 113, 19.65%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 462, 80.35%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 443, 77.04%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.49, see rank | 3.35 | 3.32 |
| Married-Couple Family | 366, 63.65%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 132, 22.96%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 1,470
| 21777 Zip Code | Maryland | U.S. | |
| Total Households | 492, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.99, see rank | 2.61 | 2.58 |
| 1 Person Households | 73, 14.84%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 419, 85.16%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 397, 80.69%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.33, see rank | 3.15 | 3.14 |
| Married-Couple Family | 354, 71.95%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 95, 19.31%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 1,432
| 21777 Zip Code | Maryland | U.S. | |
| Total Households | 543, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.64, see rank | 2.64 | 2.61 |
| 1 Person Households | 124, 22.84%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 419, 77.16%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 408, 75.14%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.15, see rank | 3.32 | 3.29 |
| Married-Couple Family | 325, 59.85%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 135, 24.86%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 1,098
| 21777 Zip Code | Maryland | U.S. | |
| Total Households | 378, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.90, see rank | 2.61 | 2.59 |
| 1 Person Households | 61, 16.14%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 317, 83.86%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 301, 79.63%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.27, see rank | 3.13 | 3.14 |
| Married-Couple Family | 265, 70.11%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 77, 20.37%, 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.