Seneca, IL Historical Household and Family Data
ACS 2010-2014 data
Total population: 2,629
| Seneca, IL | Illinois | U.S. | |
| Total Households | 883, 100% | 4,778,633 | 116,211,092 |
| Average Household Size | 2.98, see rank | 2.63 | 2.63 |
| 1 Person Households | 213, 24.12%, see rank | 28.68% | 27.57% |
| 2 or More Person Households | 670, 75.88%, see rank | 71.32% | 72.43% |
| Family Households (Families) | 623, 70.55%, see rank | 65.52% | 66.22% |
| Average Family Size | 3.67, see rank | 3.36 | 3.32 |
| Married-Couple Family | 409, 46.32%, see rank | 48.22% | 48.42% |
| Nonfamily Households | 260, 29.45%, see rank | 34.48% | 33.78% |
US Census 2010 data
Total population: 2,371
| Seneca, IL | Illinois | U.S. | |
| Total Households | 868, 100% | 4,836,972 | 116,716,292 |
| Average Household Size | 2.73, see rank | 2.59 | 2.58 |
| 1 Person Households | 202, 23.27%, see rank | 27.83% | 26.74% |
| 2 or More Person Households | 666, 76.73%, see rank | 72.17% | 73.26% |
| Family Households (Families) | 625, 72.00%, see rank | 65.81% | 66.43% |
| Average Family Size | 3.21, see rank | 3.20 | 3.14 |
| Married-Couple Family | 475, 54.72%, see rank | 48.23% | 48.42% |
| Nonfamily Households | 243, 28.00%, see rank | 34.19% | 33.57% |
ACS 2008-2012 data
Total population: 2,476
| Seneca, IL | Illinois | U.S. | |
| Total Households | 871, 100% | 4,774,275 | 115,226,802 |
| Average Household Size | 2.84, see rank | 2.62 | 2.61 |
| 1 Person Households | 213, 24.45%, see rank | 28.52% | 27.45% |
| 2 or More Person Households | 658, 75.55%, see rank | 71.48% | 72.55% |
| Family Households (Families) | 624, 71.64%, see rank | 65.82% | 66.47% |
| Average Family Size | 3.50, see rank | 3.34 | 3.29 |
| Married-Couple Family | 404, 46.38%, see rank | 48.67% | 48.97% |
| Nonfamily Households | 247, 28.36%, see rank | 34.18% | 33.53% |
ACS 2006-2010 data
Total population: 2,407
| Seneca, IL | Illinois | U.S. | |
| Total Households | 871, 100% | 4,769,951 | 114,235,996 |
| Average Household Size | 2.76, see rank | 2.61 | 2.59 |
| 1 Person Households | 228, 26.18%, see rank | 28.23% | 27.24% |
| 2 or More Person Households | 643, 73.82%, see rank | 71.77% | 72.76% |
| Family Households (Families) | 612, 70.26%, see rank | 66.28% | 66.75% |
| Average Family Size | 3.45, see rank | 3.31 | 3.25 |
| Married-Couple Family | 449, 51.55%, see rank | 49.36% | 49.60% |
| Nonfamily Households | 259, 29.74%, see rank | 33.72% | 33.25% |
ACS 2005-2009 data
Total population: 1,969
| Seneca, IL | Illinois | U.S. | |
| Total Households | 702, 100% | 4,749,388 | 112,611,029 |
| Average Household Size | 2.80, see rank | 2.62 | 2.60 |
| 1 Person Households | 195, 27.78%, see rank | 28.40% | 27.32% |
| 2 or More Person Households | 507, 72.22%, see rank | 71.60% | 72.68% |
| Family Households (Families) | 496, 70.66%, see rank | 66.09% | 66.67% |
| Average Family Size | 3.53, see rank | 3.34 | 3.27 |
| Married-Couple Family | 372, 52.99%, see rank | 49.35% | 49.71% |
| Nonfamily Households | 206, 29.34%, see rank | 33.91% | 33.33% |
US Census 2000 data
Total population: 2,053
| Seneca, IL | Illinois | U.S. | |
| Total Households | 744, 100% | 4,591,779 | 105,480,101 |
| Average Household Size | 2.76, see rank | 2.63 | 2.59 |
| 1 Person Households | 155, 20.83%, see rank | 26.78% | 25.82% |
| 2 or More Person Households | 589, 79.17%, see rank | 73.22% | 74.18% |
| Family Households (Families) | 570, 76.61%, see rank | 67.63% | 68.06% |
| Average Family Size | 3.22, see rank | 3.23 | 3.14 |
| Married-Couple Family | 471, 63.31%, see rank | 51.26% | 51.66% |
| Nonfamily Households | 174, 23.39%, see rank | 32.37% | 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.