| 1. | Imperial County, CA (El Centro, Calexico, Brawley) (pop. 142,361) | 0.02 |
| 2. | Philadelphia County, PA (Philadelphia) (pop. 1,517,550) | 0.02 |
| 3. | Riverside County, CA (Riverside, Perris Valley, Moreno Valley) (pop. 1,545,387) | 0.01 |
| 4. | San Diego County, CA (San Diego, Chula Vista, Oceanside) (pop. 2,813,833) | 0.01 |
| 5. | Los Angeles County, CA (Los Angeles, East San Gabriel Valley, Long Beach) (pop. 9,519,338) | 0.01 |
| 6. | Tulsa County, OK (Tulsa, Broken Arrow, Owasso) (pop. 563,299) | 0.01 |
| 7. | Oklahoma County, OK (Oklahoma City, Edmond, Midwest City) (pop. 660,448) | 0.01 |
| 8. | Greenville County, SC (Greenville, Wade Hampton, Taylors) (pop. 379,616) | 0.01 |
| 9. | Ohio County, WV (Wheeling, Bethlehem, West Liberty) (pop. 47,427) | 0.01 |
| 10. | Monongalia County, WV (Morgantown, Cheat Lake, Brookhaven) (pop. 81,866) | 0.01 |
| 11. | Placer County, CA (Roseville, Loomis Basin-Folsom Lake, Rocklin) (pop. 248,399) | 0.00 |
| 12. | San Joaquin County, CA (Stockton, Lodi, Tracy) (pop. 563,598) | 0.00 |
| 13. | Kern County, CA (Bakersfield, East Kern, Delano) (pop. 661,645) | 0.00 |
| 14. | Paulding County, GA (Huntsville, Yorkville, Dallas) (pop. 81,678) | 0.00 |
| 15. | Fresno County, CA (Fresno, Clovis, Reedley) (pop. 799,407) | 0.00 |
| 16. | Ventura County, CA (Oxnard, Thousand Oaks, Simi Valley) (pop. 753,197) | 0.00 |
| 17. | Butte County, CA (Chico, Paradise, Oroville) (pop. 203,171) | 0.00 |
| 18. | Dawson County, GA (Juno, Dawsonville) (pop. 15,999) | 0.00 |
| 19. | Coffee County, GA (Douglas, West Green, Broxton) (pop. 37,413) | 0.00 |
| 20. | Chatham County, GA (Savannah, Pooler-Burroughs, Tybee Island-Wilmington) (pop. 232,048) | 0.00 |
| 21. | Santa Clara County, CA (San Jose, Sunnyvale, Santa Clara) (pop. 1,682,585) | 0.00 |
| 22. | Bibb County, GA (Macon, Lizella, Rutland) (pop. 153,887) | 0.00 |
| 23. | San Francisco County, CA (San Francisco) (pop. 776,733) | 0.00 |
| 24. | Mayes County, OK (Pryor Creek, East Mayes, Chouteau) (pop. 38,369) | 0.00 |
| 25. | Richland County, SC (Columbia, Dutch Fork, Pontiac) (pop. 320,677) | 0.00 |
| 26. | Fairfax County, VA (Burke, Reston, Annandale) (pop. 969,749) | 0.00 |
| 27. | Hopewell city, VA (Hopewell) (pop. 22,354) | 0.00 |
| 28. | Virginia Beach city, VA (Virginia Beach) (pop. 425,257) | 0.00 |