USA.com / Maryland / Washington County / Keedysville, MD / 21756 / Population and Races / Historical Household and Family Data
21756 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 3,706
| 21756 Zip Code | Maryland | U.S. | |
| Total Households | 1,297, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.85, see rank | 2.67 | 2.63 |
| 1 Person Households | 162, 12.49%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 1,135, 87.51%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 1,096, 84.50%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.15, see rank | 3.35 | 3.32 |
| Married-Couple Family | 940, 72.47%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 201, 15.50%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 3,612
| 21756 Zip Code | Maryland | U.S. | |
| Total Households | 1,270, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.84, see rank | 2.61 | 2.58 |
| 1 Person Households | 190, 14.96%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 1,080, 85.04%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 1,021, 80.39%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.14, see rank | 3.15 | 3.14 |
| Married-Couple Family | 887, 69.84%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 249, 19.61%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 3,333
| 21756 Zip Code | Maryland | U.S. | |
| Total Households | 1,148, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.89, see rank | 2.64 | 2.61 |
| 1 Person Households | 112, 9.76%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 1,036, 90.24%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 1,023, 89.11%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.11, see rank | 3.32 | 3.29 |
| Married-Couple Family | 875, 76.22%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 125, 10.89%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 2,572
| 21756 Zip Code | Maryland | U.S. | |
| Total Households | 892, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.86, see rank | 2.61 | 2.59 |
| 1 Person Households | 127, 14.24%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 765, 85.76%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 722, 80.94%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.16, see rank | 3.13 | 3.14 |
| Married-Couple Family | 642, 71.97%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 170, 19.06%, 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.