| In August of 2006, the US Census Bureau released | | | | 7. San Diego City, California -1,208,331 |
| estimates of population size for cities within the | | | | 8. San Antonio City, Texas – 1,202,223 |
| United States. Incorporated in 1850, the City of San | | | | 9. Dallas City, Texas – 1,144,946 |
| Diego has grown to become the 7th most populated | | | | 10. San Jose City, California – 887,330 |
| City in the nation. The data showed that San Diego | | | | 11. Detroit City, Michigan – 836,056 |
| City has 1,208,331 residents. The median age of | | | | 12. Jacksonville City, Florida – 768,537 |
| residents was 33.5 years and approximately 26.4% | | | | 13. Indianapolis City, Indiana – 765,310 |
| of the population was born outside of the United | | | | 14. San Francisco City, California – 719,077 |
| States. | | | | 15. Columbus City, Ohio – 693,983 |
| San Diego City is located within San Diego County, | | | | Listed below is a ranking of the 15 smallest |
| which is the 6th most populated county in the United | | | | communities in the United States in terms of |
| States. There are 18 other cities within San Diego | | | | population size. |
| County, which include: Carlsbad, Chula Vista, | | | | 1. Baytown City, Texas- 61,504 |
| Coronado, Del Mar, El Cajon, Encinitas, Escondido, | | | | 2. Redondo Beach City, California – 61,473 |
| Imperial Beach, La Mesa, Lemon Grove, National City, | | | | 3. Folsom City, California – 61,408 |
| Oceanside, Poway, San Diego, San Marcos, Santee, | | | | 4. East Orange City, New Jersey – 61,147 |
| Solana Beach and Vista. The County also has | | | | 5. Bloomington City, Illinois – 60,822 |
| numerous unincorporated regions. | | | | 6. Missouri City, Texas – 60,513 |
| Listed below is a ranking of the top 15 most | | | | 7. Lynchburg City, Virginia – 60,378 |
| populated cities within the United States, as well as | | | | 8. St. Cloud City, Minnesota – 59,624 |
| an estimate of populaton size of each city. | | | | 9. Pontiac City, Michigan – 59,472 |
| 1. New York City New York - 7,956,113 | | | | 10. Fayetteville City, Arkansas – 58,839 |
| 2. Los Angeles City, California – 3,731,437 | | | | 11. Boynton Beach City, Florida – 58,611 |
| 3. Chicago City, Illinois – 2,701,926 | | | | 12. Muncie City, Indiana – 56,843 |
| 4. Houston City, Texas- 1,941,430 | | | | 13. Bryan City, Texas – 56,277 |
| 5. Philadelphia City, Pennsylvania- 1,406,415 | | | | 14. Greenville City, North Carolina – 55,435 |
| 6. Phoenix City, Arizona – 1,377,980 | | | | 15. |