UCR POPULATION GROUP VARIABLE CODES
| Code | FBI Population Group |
| 0 | Territories |
| 1 | Cities 250,000 or over |
| 1A | Cities 1,000,000 or over |
| 1B | Cities 500,000 to 999,999 |
| 1C | Cities 250,000 to 499,999 |
| 2 | Cities 100,000 to 249,999 |
| 3 | Cities 50,000 to 99,999 |
| 4 | Cities 25,000 to 49,999 |
| 5 | Cities 10,000 to 24,999 |
| 6 | Cities 2,500 to 9,999 |
| 7 | Cities under 2,500 |
| 8 | Non-MSA Counties |
| 8A | Non-MSA Counties 100,000 or over |
| 8B | Non-MSA Counties 25,000 to 99,999 |
| 8C | Non-MSA Counties 10,000 to 24,999 |
| 8D | Non-MSA Counties less than 10,000 |
| 8E | Non-MSA State Police |
| 9 | MSA Counties |
| 9A | MSA Counties 100,000 or over |
| 9B | MSA Counties 25,000 to 99,999 |
| 9C | MSA Counties 10,000 to 49,999 |
| 9D | MSA Counties less than 10,000 |
| 9E | MSA State Police |