USA.com / California / Humboldt County / Arcata, CA / 95521 / Population and Races / Historical Household and Family Data
95521 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 20,769
| 95521 Zip Code | California | U.S. | |
| Total Households | 8,145, 100% | 12,617,280 | 116,211,092 |
| Average Household Size | 2.33, see rank | 2.95 | 2.63 |
| 1 Person Households | 3,018, 37.05%, see rank | 24.10% | 27.57% |
| 2 or More Person Households | 5,127, 62.95%, see rank | 75.90% | 72.43% |
| Family Households (Families) | 3,537, 43.43%, see rank | 68.69% | 66.22% |
| Average Family Size | 3.19, see rank | 3.67 | 3.32 |
| Married-Couple Family | 2,285, 28.05%, see rank | 49.11% | 48.42% |
| Nonfamily Households | 4,608, 56.57%, see rank | 31.31% | 33.78% |
US Census 2010 data
Total population: 20,199
| 95521 Zip Code | California | U.S. | |
| Total Households | 8,643, 100% | 12,577,498 | 116,716,292 |
| Average Household Size | 2.13, see rank | 2.90 | 2.58 |
| 1 Person Households | 3,068, 35.50%, see rank | 23.29% | 26.74% |
| 2 or More Person Households | 5,575, 64.50%, see rank | 76.71% | 73.26% |
| Family Households (Families) | 3,353, 38.79%, see rank | 68.71% | 66.43% |
| Average Family Size | 2.74, see rank | 3.45 | 3.14 |
| Married-Couple Family | 2,199, 25.44%, see rank | 49.40% | 48.42% |
| Nonfamily Households | 5,290, 61.21%, see rank | 31.29% | 33.57% |
ACS 2008-2012 data
Total population: 20,108
| 95521 Zip Code | California | U.S. | |
| Total Households | 7,935, 100% | 12,466,331 | 115,226,802 |
| Average Household Size | 2.29, see rank | 2.93 | 2.61 |
| 1 Person Households | 3,053, 38.48%, see rank | 24.31% | 27.45% |
| 2 or More Person Households | 4,882, 61.52%, see rank | 75.69% | 72.55% |
| Family Households (Families) | 3,509, 44.22%, see rank | 68.59% | 66.47% |
| Average Family Size | 3.12, see rank | 3.65 | 3.29 |
| Married-Couple Family | 2,355, 29.68%, see rank | 49.35% | 48.97% |
| Nonfamily Households | 4,426, 55.78%, see rank | 31.41% | 33.53% |
US Census 2000 data
Total population: 19,585
| 95521 Zip Code | California | U.S. | |
| Total Households | 8,209, 100% | 11,502,870 | 105,480,101 |
| Average Household Size | 2.21, see rank | 2.87 | 2.59 |
| 1 Person Households | 2,720, 33.13%, see rank | 23.54% | 25.82% |
| 2 or More Person Households | 5,489, 66.87%, see rank | 76.46% | 74.18% |
| Family Households (Families) | 3,522, 42.90%, see rank | 68.85% | 68.06% |
| Average Family Size | 2.84, see rank | 3.43 | 3.14 |
| Married-Couple Family | 2,366, 28.82%, see rank | 51.09% | 51.66% |
| Nonfamily Households | 4,687, 57.10%, 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.