USA.com / Maryland / Dorchester County / Secretary, MD / 21664 / Population and Races / Historical Household and Family Data
21664 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 855
| 21664 Zip Code | Maryland | U.S. | |
| Total Households | 283, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 3.02, see rank | 2.67 | 2.63 |
| 1 Person Households | 30, 10.60%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 253, 89.40%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 238, 84.10%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.33, see rank | 3.35 | 3.32 |
| Married-Couple Family | 164, 57.95%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 45, 15.90%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 539
| 21664 Zip Code | Maryland | U.S. | |
| Total Households | 215, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.50, see rank | 2.61 | 2.58 |
| 1 Person Households | 43, 20.00%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 172, 80.00%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 159, 73.95%, see rank | 67.10% | 66.43% |
| Average Family Size | 2.85, see rank | 3.15 | 3.14 |
| Married-Couple Family | 111, 51.63%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 56, 26.05%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 763
| 21664 Zip Code | Maryland | U.S. | |
| Total Households | 264, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.89, see rank | 2.64 | 2.61 |
| 1 Person Households | 35, 13.26%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 229, 86.74%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 217, 82.20%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.24, see rank | 3.32 | 3.29 |
| Married-Couple Family | 138, 52.27%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 47, 17.80%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 503
| 21664 Zip Code | Maryland | U.S. | |
| Total Households | 197, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.54, see rank | 2.61 | 2.59 |
| 1 Person Households | 41, 20.81%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 156, 79.19%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 147, 74.62%, see rank | 68.62% | 68.06% |
| Average Family Size | 2.92, see rank | 3.13 | 3.14 |
| Married-Couple Family | 113, 57.36%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 50, 25.38%, 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.