USA.com / Maryland / Montgomery County / Derwood, MD / 20855 / Population and Races / Historical Household and Family Data
20855 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 14,178
| 20855 Zip Code | Maryland | U.S. | |
| Total Households | 4,769, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.95, see rank | 2.67 | 2.63 |
| 1 Person Households | 762, 15.98%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 4,007, 84.02%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 3,813, 79.95%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.33, see rank | 3.35 | 3.32 |
| Married-Couple Family | 3,161, 66.28%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 956, 20.05%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 14,295
| 20855 Zip Code | Maryland | U.S. | |
| Total Households | 4,889, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.91, see rank | 2.61 | 2.58 |
| 1 Person Households | 661, 13.52%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 4,228, 86.48%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 4,030, 82.43%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.17, see rank | 3.15 | 3.14 |
| Married-Couple Family | 3,415, 69.85%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 859, 17.57%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 14,377
| 20855 Zip Code | Maryland | U.S. | |
| Total Households | 4,750, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 3.01, see rank | 2.64 | 2.61 |
| 1 Person Households | 750, 15.79%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 4,000, 84.21%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 3,804, 80.08%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.39, see rank | 3.32 | 3.29 |
| Married-Couple Family | 3,154, 66.40%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 946, 19.92%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 17,251
| 20855 Zip Code | Maryland | U.S. | |
| Total Households | 5,474, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 3.12, see rank | 2.61 | 2.59 |
| 1 Person Households | 603, 11.02%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 4,871, 88.98%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 4,629, 84.56%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.35, see rank | 3.13 | 3.14 |
| Married-Couple Family | 3,923, 71.67%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 845, 15.44%, 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.