USA.com / California / Contra Costa County / Lafayette, CA / 94549 / Population and Races / Historical Household and Family Data
94549 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 28,298
| 94549 Zip Code | California | U.S. | |
| Total Households | 10,623, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.65, see rank | 2.95 | 2.63 |
| 1 Person Households | 1,942, 18.28%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 8,681, 81.72%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 7,848, 73.88%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.08, see rank | 3.67 | 3.32 |
| Married-Couple Family | 6,886, 64.82%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 2,775, 26.12%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 26,864
| 94549 Zip Code | California | U.S. | |
| Total Households | 10,414, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.57, see rank | 2.90 | 2.58 |
| 1 Person Households | 2,174, 20.88%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 8,240, 79.12%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 7,659, 73.55%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.00, see rank | 3.45 | 3.14 |
| Married-Couple Family | 6,657, 63.92%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 2,755, 26.45%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 27,340
| 94549 Zip Code | California | U.S. | |
| Total Households | 10,449, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.60, see rank | 2.93 | 2.61 |
| 1 Person Households | 2,113, 20.22%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 8,336, 79.78%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 7,745, 74.12%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.06, see rank | 3.65 | 3.29 |
| Married-Couple Family | 6,672, 63.85%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 2,704, 25.88%, see rank | 31.41% | 33.53% |
US Census 2000 data
Total population: 23,995
| 94549 Zip Code | California | U.S. | |
| Total Households | 9,185, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.60, see rank | 2.87 | 2.59 |
| 1 Person Households | 1,846, 20.10%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 7,339, 79.90%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 6,772, 73.73%, see rank | 68.85% | 68.06% |
| Average Family Size | 3.02, see rank | 3.43 | 3.14 |
| Married-Couple Family | 5,957, 64.86%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 2,413, 26.27%, see rank | 31.15% | 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.