USA.com / Maryland / Montgomery County / Cabin John, MD / 20818 / Population and Races / Historical Household and Family Data
20818 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 1,948
| 20818 Zip Code | Maryland | U.S. | |
| Total Households | 703, 100% | 2,155,983 | 116,211,092 |
| Average Household Size | 2.77, see rank | 2.67 | 2.63 |
| 1 Person Households | 122, 17.35%, see rank | 26.95% | 27.57% |
| 2 or More Person Households | 581, 82.65%, see rank | 73.05% | 72.43% |
| Family Households (Families) | 533, 75.82%, see rank | 67.07% | 66.22% |
| Average Family Size | 3.23, see rank | 3.35 | 3.32 |
| Married-Couple Family | 465, 66.15%, see rank | 47.68% | 48.42% |
| Nonfamily Households | 170, 24.18%, see rank | 32.93% | 33.78% |
US Census 2010 data
Total population: 1,962
| 20818 Zip Code | Maryland | U.S. | |
| Total Households | 766, 100% | 2,156,411 | 116,716,292 |
| Average Household Size | 2.56, see rank | 2.61 | 2.58 |
| 1 Person Households | 154, 20.10%, see rank | 26.11% | 26.74% |
| 2 or More Person Households | 612, 79.90%, see rank | 73.89% | 73.26% |
| Family Households (Families) | 559, 72.98%, see rank | 67.10% | 66.43% |
| Average Family Size | 2.97, see rank | 3.15 | 3.14 |
| Married-Couple Family | 470, 61.36%, see rank | 47.61% | 48.42% |
| Nonfamily Households | 207, 27.02%, see rank | 32.90% | 33.57% |
ACS 2008-2012 data
Total population: 2,057
| 20818 Zip Code | Maryland | U.S. | |
| Total Households | 775, 100% | 2,138,806 | 115,226,802 |
| Average Household Size | 2.65, see rank | 2.64 | 2.61 |
| 1 Person Households | 158, 20.39%, see rank | 27.12% | 27.45% |
| 2 or More Person Households | 617, 79.61%, see rank | 72.88% | 72.55% |
| Family Households (Families) | 544, 70.19%, see rank | 66.97% | 66.47% |
| Average Family Size | 3.18, see rank | 3.32 | 3.29 |
| Married-Couple Family | 429, 55.35%, see rank | 48.03% | 48.97% |
| Nonfamily Households | 231, 29.81%, see rank | 33.03% | 33.53% |
US Census 2000 data
Total population: 1,987
| 20818 Zip Code | Maryland | U.S. | |
| Total Households | 749, 100% | 1,980,859 | 105,480,101 |
| Average Household Size | 2.65, see rank | 2.61 | 2.59 |
| 1 Person Households | 166, 22.16%, see rank | 25.01% | 25.82% |
| 2 or More Person Households | 583, 77.84%, see rank | 74.99% | 74.18% |
| Family Households (Families) | 541, 72.23%, see rank | 68.62% | 68.06% |
| Average Family Size | 3.12, see rank | 3.13 | 3.14 |
| Married-Couple Family | 478, 63.82%, see rank | 50.21% | 51.66% |
| Nonfamily Households | 208, 27.77%, 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.