| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Dalmatia | Standard | $433,400 |
| Dauphin | Standard | $396,230 |
| Duncannon | Standard | $326,520 |
| Elizabethtown | Standard | $414,780 |
| Elizabethville | Standard | $409,200 |
| Grantville | Standard | $447,830 |
| Gratz | Standard | $554,200 |
| Halifax | Standard | $352,520 |
| Hershey | Standard | $472,320 |
| Highspire | Standard | $141,130 |
| Hummelstown | Standard | $512,970 |
| Lykens | Standard | $505,130 |
| Middletown | Standard | $390,690 |
| Millersburg | Standard | $492,460 |
| Palmyra | Standard | $381,580 |
| Williamstown | Standard | $128,450 |
| Harrisburg | Standard | $154,600 |
| Harrisburg | Standard | $521,910 |
| Harrisburg | Standard | $135,450 |
| Harrisburg | Standard | $301,330 |
| Harrisburg | Standard | $321,260 |
| Harrisburg | Standard | $472,840 |
| Harrisburg | Standard | $438,240 |
| Harrisburg | Standard | $553,420 |
| Harrisburg | Standard | $445,730 |
| Spring Glen | Standard | $166,500 |
| Tower City | Standard | $387,900 |
Source: US Internal Revenue Service