Duncan, OK Historical Household and Family Data
ACS 2010-2014 data
Total population: 23,364
| Duncan, OK | Oklahoma | U.S. | |
| Total Households | 9,536, 100% | 1,450,117 | 116,211,092 |
| Average Household Size | 2.40, see rank | 2.56 | 2.63 |
| 1 Person Households | 3,230, 33.87%, see rank | 28.09% | 27.57% |
| 2 or More Person Households | 6,306, 66.13%, see rank | 71.91% | 72.43% |
| Family Households (Families) | 5,987, 62.78%, see rank | 66.50% | 66.22% |
| Average Family Size | 3.15, see rank | 3.22 | 3.32 |
| Married-Couple Family | 4,505, 47.24%, see rank | 49.20% | 48.42% |
| Nonfamily Households | 3,549, 37.22%, see rank | 33.50% | 33.78% |
US Census 2010 data
Total population: 23,431
| Duncan, OK | Oklahoma | U.S. | |
| Total Households | 9,670, 100% | 1,460,450 | 116,716,292 |
| Average Household Size | 2.38, see rank | 2.49 | 2.58 |
| 1 Person Households | 2,869, 29.67%, see rank | 27.47% | 26.74% |
| 2 or More Person Households | 6,801, 70.33%, see rank | 72.53% | 73.26% |
| Family Households (Families) | 6,369, 65.86%, see rank | 66.78% | 66.43% |
| Average Family Size | 2.93, see rank | 3.04 | 3.14 |
| Married-Couple Family | 4,798, 49.62%, see rank | 49.47% | 48.42% |
| Nonfamily Households | 3,301, 34.14%, see rank | 33.22% | 33.57% |
ACS 2008-2012 data
Total population: 23,332
| Duncan, OK | Oklahoma | U.S. | |
| Total Households | 9,676, 100% | 1,439,292 | 115,226,802 |
| Average Household Size | 2.37, see rank | 2.53 | 2.61 |
| 1 Person Households | 3,186, 32.93%, see rank | 28.02% | 27.45% |
| 2 or More Person Households | 6,490, 67.07%, see rank | 71.98% | 72.55% |
| Family Households (Families) | 6,216, 64.24%, see rank | 66.73% | 66.47% |
| Average Family Size | 3.06, see rank | 3.17 | 3.29 |
| Married-Couple Family | 4,827, 49.89%, see rank | 49.86% | 48.97% |
| Nonfamily Households | 3,460, 35.76%, see rank | 33.27% | 33.53% |
ACS 2006-2010 data
Total population: 23,157
| Duncan, OK | Oklahoma | U.S. | |
| Total Households | 9,635, 100% | 1,421,705 | 114,235,996 |
| Average Household Size | 2.36, see rank | 2.51 | 2.59 |
| 1 Person Households | 3,094, 32.11%, see rank | 27.95% | 27.24% |
| 2 or More Person Households | 6,541, 67.89%, see rank | 72.05% | 72.76% |
| Family Households (Families) | 6,236, 64.72%, see rank | 66.91% | 66.75% |
| Average Family Size | 3.05, see rank | 3.14 | 3.25 |
| Married-Couple Family | 4,785, 49.66%, see rank | 50.47% | 49.60% |
| Nonfamily Households | 3,399, 35.28%, see rank | 33.09% | 33.25% |
ACS 2005-2009 data
Total population: 22,354
| Duncan, OK | Oklahoma | U.S. | |
| Total Households | 9,365, 100% | 1,405,005 | 112,611,029 |
| Average Household Size | 2.33, see rank | 2.49 | 2.60 |
| 1 Person Households | 2,697, 28.80%, see rank | 27.98% | 27.32% |
| 2 or More Person Households | 6,668, 71.20%, see rank | 72.02% | 72.68% |
| Family Households (Families) | 6,320, 67.49%, see rank | 66.91% | 66.67% |
| Average Family Size | 2.92, see rank | 3.11 | 3.27 |
| Married-Couple Family | 4,745, 50.67%, see rank | 50.41% | 49.71% |
| Nonfamily Households | 3,045, 32.51%, see rank | 33.09% | 33.33% |
US Census 2000 data
Total population: 22,505
| Duncan, OK | Oklahoma | U.S. | |
| Total Households | 9,406, 100% | 1,342,293 | 105,480,101 |
| Average Household Size | 2.35, see rank | 2.49 | 2.59 |
| 1 Person Households | 2,715, 28.86%, see rank | 26.71% | 25.82% |
| 2 or More Person Households | 6,691, 71.14%, see rank | 73.29% | 74.18% |
| Family Households (Families) | 6,420, 68.25%, see rank | 68.67% | 68.06% |
| Average Family Size | 2.88, see rank | 3.02 | 3.14 |
| Married-Couple Family | 5,138, 54.62%, see rank | 53.46% | 51.66% |
| Nonfamily Households | 2,986, 31.75%, see rank | 31.33% | 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.