USA.com / Pennsylvania / Columbia County / Mifflinville, PA / 18631 / Income and Careers / Historical Median Individual Worker Income Data
18631 Zip Code Historical Median Individual Worker Income Data
ACS 2010-2014 data
| 18631 Zip Code | 29,792 USD |
| Pennsylvania | 31,459 USD |
| U.S. | 30,815 USD |
ACS 2008-2012 data
| 18631 Zip Code | 31,703 USD |
| Pennsylvania | 30,697 USD |
| U.S. | 30,376 USD |
US Census 2000 data
| 18631 Zip Code | 26,141 USD |
| Pennsylvania | 32,013 USD |
| U.S. | 32,098 USD |
* 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.