USA.com / Massachusetts / Middlesex County / Billerica, MA / 01821 / Population and Races / Historical Household and Family Data
01821 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 31,157
| 01821 Zip Code | Massachusetts | U.S. | |
| Total Households | 11,209, 100% | 2,538,485 | 116,211,092 |
| Average Household Size | 2.78, see rank | 2.53 | 2.63 |
| 1 Person Households | 2,440, 21.77%, see rank | 28.80% | 27.57% |
| 2 or More Person Households | 8,769, 78.23%, see rank | 71.20% | 72.43% |
| Family Households (Families) | 8,366, 74.64%, see rank | 63.62% | 66.22% |
| Average Family Size | 3.32, see rank | 3.22 | 3.32 |
| Married-Couple Family | 6,804, 60.70%, see rank | 46.91% | 48.42% |
| Nonfamily Households | 2,843, 25.36%, see rank | 36.38% | 33.78% |
US Census 2010 data
Total population: 30,310
| 01821 Zip Code | Massachusetts | U.S. | |
| Total Households | 10,824, 100% | 2,547,075 | 116,716,292 |
| Average Household Size | 2.80, see rank | 2.48 | 2.58 |
| 1 Person Households | 2,117, 19.56%, see rank | 28.75% | 26.74% |
| 2 or More Person Households | 8,707, 80.44%, see rank | 71.25% | 73.26% |
| Family Households (Families) | 8,130, 75.11%, see rank | 62.96% | 66.43% |
| Average Family Size | 3.24, see rank | 3.08 | 3.14 |
| Married-Couple Family | 6,561, 60.62%, see rank | 46.28% | 48.42% |
| Nonfamily Households | 2,694, 24.89%, see rank | 37.04% | 33.57% |
ACS 2008-2012 data
Total population: 30,569
| 01821 Zip Code | Massachusetts | U.S. | |
| Total Households | 10,743, 100% | 2,525,694 | 115,226,802 |
| Average Household Size | 2.84, see rank | 2.50 | 2.61 |
| 1 Person Households | 2,326, 21.65%, see rank | 29.05% | 27.45% |
| 2 or More Person Households | 8,417, 78.35%, see rank | 70.95% | 72.55% |
| Family Households (Families) | 7,909, 73.62%, see rank | 63.52% | 66.47% |
| Average Family Size | 3.39, see rank | 3.20 | 3.29 |
| Married-Couple Family | 6,647, 61.87%, see rank | 47.12% | 48.97% |
| Nonfamily Households | 2,834, 26.38%, see rank | 36.48% | 33.53% |
US Census 2000 data
Total population: 29,408
| 01821 Zip Code | Massachusetts | U.S. | |
| Total Households | 9,953, 100% | 2,443,580 | 105,480,101 |
| Average Household Size | 2.95, see rank | 2.51 | 2.59 |
| 1 Person Households | 1,587, 15.94%, see rank | 28.01% | 25.82% |
| 2 or More Person Households | 8,366, 84.06%, see rank | 71.99% | 74.18% |
| Family Households (Families) | 7,941, 79.78%, see rank | 64.52% | 68.06% |
| Average Family Size | 3.32, see rank | 3.11 | 3.14 |
| Married-Couple Family | 6,655, 66.86%, see rank | 49.02% | 51.66% |
| Nonfamily Households | 2,012, 20.22%, see rank | 35.48% | 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.