| Population group | Percent civilian employees | Number of Agencies | 2006 estimated population |
|---|---|---|---|
| TOTAL AGENCIES: | 30.8 | 14,336 | 283,238,660 |
| TOTAL CITIES | 23.2 | 10,872 | 189,942,258 |
| GROUP I (250,000 and over) | 25.0 | 71 | 53,957,412 |
| 1,000,000 and over (Group I subset) | 26.4 | 10 | 25,080,811 |
| 500,000 to 999,999 (Group I subset) | 22.2 | 23 | 15,413,225 |
| 250,000 to 499,999 (Group I subset) | 24.8 | 38 | 13,463,376 |
| GROUP II (100,000 to 249,999) | 25.0 | 181 | 27,081,536 |
| GROUP III (50,000 to 99,999) | 22.9 | 423 | 29,029,089 |
| GROUP IV (25,000 to 49,999) | 21.3 | 788 | 27,199,664 |
| GROUP V (10,000 to 24,999) | 20.1 | 1,818 | 28,813,877 |
| GROUP VI (under 10,000) | 22.0 | 7,591 | 23,860,680 |
| METROPOLITAN COUNTIES | 41.0 | 1,308 | 65,765,925 |
| NONMETROPOLITAN COUNTIES | 41.1 | 2,156 | 27,530,477 |
| SUBURBAN AREA1 | 34.3 | 7,438 | 121,334,744 |
Provides the methodology used in constructing this table and other pertinent information about this table.