USA.com / California / Contra Costa County / Concord, CA / 94521 / Population and Races / Historical Household and Family Data
94521 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 41,138
| 94521 Zip Code | California | U.S. | |
| Total Households | 15,787, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.59, see rank | 2.95 | 2.63 |
| 1 Person Households | 4,028, 25.51%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 11,759, 74.49%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 10,893, 69.00%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.17, see rank | 3.67 | 3.32 |
| Married-Couple Family | 8,584, 54.37%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 4,894, 31.00%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 41,249
| 94521 Zip Code | California | U.S. | |
| Total Households | 15,574, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.64, see rank | 2.90 | 2.58 |
| 1 Person Households | 3,427, 22.00%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 12,147, 78.00%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 11,109, 71.33%, see rank | 68.71% | 66.43% |
| Average Family Size | 3.09, see rank | 3.45 | 3.14 |
| Married-Couple Family | 8,527, 54.75%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 4,465, 28.67%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 40,854
| 94521 Zip Code | California | U.S. | |
| Total Households | 15,805, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.57, see rank | 2.93 | 2.61 |
| 1 Person Households | 4,205, 26.61%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 11,600, 73.39%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 11,157, 70.59%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.17, see rank | 3.65 | 3.29 |
| Married-Couple Family | 8,552, 54.11%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 4,648, 29.41%, see rank | 31.41% | 33.53% |
US Census 2000 data
Total population: 39,887
| 94521 Zip Code | California | U.S. | |
| Total Households | 14,457, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.73, see rank | 2.87 | 2.59 |
| 1 Person Households | 2,888, 19.98%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 11,569, 80.02%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 10,673, 73.83%, see rank | 68.85% | 68.06% |
| Average Family Size | 3.14, see rank | 3.43 | 3.14 |
| Married-Couple Family | 8,342, 57.70%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 3,784, 26.17%, 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.