| ZIP Code | ZIP Code City/Town | ZIP Type | Average Adjusted Income(2021) |
|---|
| Longmont | Standard | $454,850 |
| Berthoud | Standard | $505,820 |
| Dacono | Standard | $323,570 |
| Erie | Standard | $391,190 |
| Fort Collins | Standard | $584,550 |
| Frederick | Standard | $322,450 |
| Johnstown | Standard | $384,590 |
| Loveland | Standard | $420,000 |
| Mead | Standard | $380,550 |
| Milliken | Standard | $432,030 |
| Wellington | Standard | $352,430 |
| Windsor | Standard | $463,500 |
| Brighton | Standard | $377,250 |
| Ault | Standard | $448,230 |
| Briggsdale | Standard | $177,870 |
| Carr | Standard | $164,340 |
| Eaton | Standard | $504,950 |
| Evans | Standard | $283,870 |
| Fort Lupton | Standard | $564,330 |
| Galeton | Standard | $174,770 |
| Gill | Standard | $489,930 |
| Greeley | Standard | $512,220 |
| Greeley | Standard | $507,300 |
| Hudson | Standard | $489,070 |
| Keenesburg | Standard | $432,870 |
| Kersey | Standard | $399,900 |
| La Salle | Standard | $477,030 |
| Nunn | Standard | $339,000 |
| Orchard | Standard | $139,130 |
| Pierce | Standard | $430,800 |
| Platteville | Standard | $510,180 |
| Roggen | Standard | $383,250 |
| Wiggins | Standard | $348,630 |
| Grover | Standard | $222,630 |
| Merino | Standard | $332,400 |
Source: US Internal Revenue Service