USA.com / Iowa / Monona County / Onawa, IA / 51040 / Population and Races / Historical Household and Family Data
51040 Zip Code Historical Household and Family Data
ACS 2010-2014 data
Total population: 3,576
| 51040 Zip Code | Iowa | U.S. | |
| Total Households | 1,496, 100% | 1,232,228 | 116,211,092 |
| Average Household Size | 2.33, see rank | 2.42 | 2.63 |
| 1 Person Households | 505, 33.76%, see rank | 28.77% | 27.57% |
| 2 or More Person Households | 991, 66.24%, see rank | 71.23% | 72.43% |
| Family Households (Families) | 921, 61.56%, see rank | 64.68% | 66.22% |
| Average Family Size | 3.07, see rank | 3.05 | 3.32 |
| Married-Couple Family | 737, 49.26%, see rank | 51.37% | 48.42% |
| Nonfamily Households | 575, 38.44%, see rank | 35.32% | 33.78% |
US Census 2010 data
Total population: 3,712
| 51040 Zip Code | Iowa | U.S. | |
| Total Households | 1,644, 100% | 1,221,576 | 116,716,292 |
| Average Household Size | 2.22, see rank | 2.41 | 2.58 |
| 1 Person Households | 600, 36.50%, see rank | 28.45% | 26.74% |
| 2 or More Person Households | 1,044, 63.50%, see rank | 71.55% | 73.26% |
| Family Households (Families) | 960, 58.39%, see rank | 64.67% | 66.43% |
| Average Family Size | 2.90, see rank | 2.97 | 3.14 |
| Married-Couple Family | 738, 44.89%, see rank | 51.18% | 48.42% |
| Nonfamily Households | 684, 41.61%, see rank | 35.33% | 33.57% |
ACS 2008-2012 data
Total population: 3,998
| 51040 Zip Code | Iowa | U.S. | |
| Total Households | 1,640, 100% | 1,223,509 | 115,226,802 |
| Average Household Size | 2.38, see rank | 2.41 | 2.61 |
| 1 Person Households | 470, 28.66%, see rank | 28.63% | 27.45% |
| 2 or More Person Households | 1,170, 71.34%, see rank | 71.37% | 72.55% |
| Family Households (Families) | 1,118, 68.17%, see rank | 65.05% | 66.47% |
| Average Family Size | 2.97, see rank | 3.03 | 3.29 |
| Married-Couple Family | 872, 53.17%, see rank | 51.96% | 48.97% |
| Nonfamily Households | 522, 31.83%, see rank | 34.95% | 33.53% |
US Census 2000 data
Total population: 3,662
| 51040 Zip Code | Iowa | U.S. | |
| Total Households | 1,553, 100% | 1,149,276 | 105,480,101 |
| Average Household Size | 2.29, see rank | 2.46 | 2.59 |
| 1 Person Households | 521, 33.55%, see rank | 27.24% | 25.82% |
| 2 or More Person Households | 1,032, 66.45%, see rank | 72.76% | 74.18% |
| Family Households (Families) | 955, 61.49%, see rank | 66.97% | 68.06% |
| Average Family Size | 2.92, see rank | 3.00 | 3.14 |
| Married-Couple Family | 767, 49.39%, see rank | 55.10% | 51.66% |
| Nonfamily Households | 598, 38.51%, see rank | 33.03% | 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.