USA.com / California / Contra Costa County / Orinda, CA / 94563 / Population and Races / Historical Household and Family Data
94563 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 18,284
| 94563 Zip Code | California | U.S. | |
| Total Households | 6,605, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.76, see rank | 2.95 | 2.63 |
| 1 Person Households | 1,191, 18.03%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 5,414, 81.97%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 5,226, 79.12%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.19, see rank | 3.67 | 3.32 |
| Married-Couple Family | 4,834, 73.19%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 1,379, 20.88%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 17,672
| 94563 Zip Code | California | U.S. | |
| Total Households | 6,563, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.69, see rank | 2.90 | 2.58 |
| 1 Person Households | 1,127, 17.17%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 5,436, 82.83%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 5,214, 79.45%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.03, see rank | 3.45 | 3.14 |
| Married-Couple Family | 4,685, 71.39%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 1,349, 20.55%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 17,779
| 94563 Zip Code | California | U.S. | |
| Total Households | 6,458, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.74, see rank | 2.93 | 2.61 |
| 1 Person Households | 1,245, 19.28%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 5,213, 80.72%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 5,039, 78.03%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.20, see rank | 3.65 | 3.29 |
| Married-Couple Family | 4,574, 70.83%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 1,419, 21.97%, see rank | 31.41% | 33.53% |
US Census 2000 data
Total population: 17,944
| 94563 Zip Code | California | U.S. | |
| Total Households | 6,710, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.66, see rank | 2.87 | 2.59 |
| 1 Person Households | 1,102, 16.42%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 5,608, 83.58%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 5,345, 79.66%, see rank | 68.85% | 68.06% |
| Average Family Size | 2.98, see rank | 3.43 | 3.14 |
| Married-Couple Family | 4,865, 72.50%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 1,365, 20.34%, 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.