USA.com / Maryland / Calvert County / Prince Frederick, MD / 20678 / Population and Races / Historical Household and Family Data
20678 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 12,285
| 20678 Zip Code | Maryland | U.S. | |
| Total Households | 4,215, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.81, see rank | 2.67 | 2.63 |
| 1 Person Households | 869, 20.62%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 3,346, 79.38%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 3,191, 75.71%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.33, see rank | 3.35 | 3.32 |
| Married-Couple Family | 2,263, 53.69%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 1,024, 24.29%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 11,045
| 20678 Zip Code | Maryland | U.S. | |
| Total Households | 3,854, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.75, see rank | 2.61 | 2.58 |
| 1 Person Households | 841, 21.82%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 3,013, 78.18%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 2,821, 73.20%, see rank | 67.10% | 66.43% |
| Average Family Size | 3.19, see rank | 3.15 | 3.14 |
| Married-Couple Family | 2,019, 52.39%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 1,033, 26.80%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 11,168
| 20678 Zip Code | Maryland | U.S. | |
| Total Households | 3,968, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.70, see rank | 2.64 | 2.61 |
| 1 Person Households | 974, 24.55%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 2,994, 75.45%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 2,816, 70.97%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.31, see rank | 3.32 | 3.29 |
| Married-Couple Family | 1,982, 49.95%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 1,152, 29.03%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 9,239
| 20678 Zip Code | Maryland | U.S. | |
| Total Households | 3,119, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.85, see rank | 2.61 | 2.59 |
| 1 Person Households | 613, 19.65%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 2,506, 80.35%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 2,375, 76.15%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.26, see rank | 3.13 | 3.14 |
| Married-Couple Family | 1,808, 57.97%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 744, 23.85%, 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.