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The differences between internal affairs investigators and postal inspectors can be seen in a few details. Each job has different responsibilities and duties. It typically takes 1-2 years to become both an internal affairs investigator and a postal inspector. Additionally, a postal inspector has an average salary of $68,901, which is higher than the $54,189 average annual salary of an internal affairs investigator.
The top three skills for an internal affairs investigator include patrol, background checks and conduct interviews. The most important skills for a postal inspector are bank fraud, law enforcement agencies, and criminal investigations.
Internal affairs investigators and postal inspectors have different pay scales, as shown below.
| Internal Affairs Investigator | Postal Inspector | |
| Average salary | $54,189 | $68,901 |
| Salary range | Between $25,000 And $115,000 | Between $39,000 And $119,000 |
| Highest paying City | New York, NY | - |
| Highest paying state | Maryland | - |
| Best paying company | Amazon | - |
| Best paying industry | - | - |
There are a few differences between an internal affairs investigator and a postal inspector in terms of educational background:
| Internal Affairs Investigator | Postal Inspector | |
| Most common degree | Bachelor's Degree, 60% | Bachelor's Degree, 73% |
| Most common major | Criminal Justice | Criminal Justice |
| Most common college | - | - |
Here are the differences between internal affairs investigators' and postal inspectors' demographics:
| Internal Affairs Investigator | Postal Inspector | |
| Average age | 44 | 44 |
| Gender ratio | Male, 72.0% Female, 28.0% | Male, 76.1% Female, 23.9% |
| Race ratio | Black or African American, 11.7% Unknown, 5.0% Hispanic or Latino, 16.7% Asian, 2.8% White, 63.1% American Indian and Alaska Native, 0.7% | Black or African American, 12.1% Unknown, 5.0% Hispanic or Latino, 17.2% Asian, 2.8% White, 62.2% American Indian and Alaska Native, 0.7% |
| LGBT Percentage | 9% | 9% |