USA.com / Maryland / Wicomico County / Bivalve, MD / 21814 / Population and Races / Historical Household and Family Data
21814 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 566
| 21814 Zip Code | Maryland | U.S. | |
| Total Households | 256, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.21, see rank | 2.67 | 2.63 |
| 1 Person Households | 78, 30.47%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 178, 69.53%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 145, 56.64%, see rank | 67.07% | 66.22% |
| Average Family Size | 2.79, see rank | 3.35 | 3.32 |
| Married-Couple Family | 115, 44.92%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 111, 43.36%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 380
| 21814 Zip Code | Maryland | U.S. | |
| Total Households | 166, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.29, see rank | 2.61 | 2.58 |
| 1 Person Households | 46, 27.71%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 120, 72.29%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 100, 60.24%, see rank | 67.10% | 66.43% |
| Average Family Size | 2.86, see rank | 3.15 | 3.14 |
| Married-Couple Family | 72, 43.37%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 66, 39.76%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 489
| 21814 Zip Code | Maryland | U.S. | |
| Total Households | 256, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 1.91, see rank | 2.64 | 2.61 |
| 1 Person Households | 71, 27.73%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 185, 72.27%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 147, 57.42%, see rank | 66.97% | 66.47% |
| Average Family Size | 2.28, see rank | 3.32 | 3.29 |
| Married-Couple Family | 147, 57.42%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 109, 42.58%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 432
| 21814 Zip Code | Maryland | U.S. | |
| Total Households | 177, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.44, see rank | 2.61 | 2.59 |
| 1 Person Households | 53, 29.94%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 124, 70.06%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 121, 68.36%, see rank | 68.62% | 68.06% |
| Average Family Size | 2.96, see rank | 3.13 | 3.14 |
| Married-Couple Family | 87, 49.15%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 56, 31.64%, 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.