List of the largest urban agglomerations in North America
This is a list of the largest urban agglomerations in North America. It includes the 50 most populated urban agglomerations.
All estimates come from the websites citypopulation.de and demographia.com.
| Rank | Name | City Population estimate | Demographia estimate |
| 1 | Mexico City, Mexico | 22,600,000 | 20,565,000 |
| 2 | New York City, United States | 22,200,000 | 21,575,000 |
| 3 | Los Angeles, United States | 17,700,000 | 15,620,000 |
| 4 | Chicago, United States | 9,750,000 | 9,160,000 |
| 5 | Washington–Baltimore, United States | 8,500,000 | 7,515,000 |
| 6 | San Francisco, United States | 7,800,000 | 6,540,000 |
| 7 | Boston, United States | 7,600,000 | 7,315,000 |
| 8 | Toronto, Canada | 7,450,000 | 6,635,000 |
| 9 | Philadelphia, United States | 7,350,000 | 5,575,000 |
| 10 | Dallas–Fort Worth, United States | 6,900,000 | 6,600,000 |
| 11 | Houston, United States | 6,500,000 | 6,285,000 |
| 12 | Miami, United States | 6,250,000 | 6,195,000 |
| 13 | Atlanta, United States | 5,700,000 | 5,325,000 |
| 14 | Detroit–Windsor, US and Canada | 5,700,000 | 4,015,000 |
| 15 | San Diego–Tijuana, US and Mexico | 5,245,000 | 4,730,000 |
| 16 | Guadalajara, Mexico | 5,150,000 | 4,830,000 |
| 17 | Monterrey, Mexico | 4,825,000 | 4,295,000 |
| 18 | Phoenix, United States | 4,500,000 | 4,365,000 |
| 19 | Seattle, United States | 4,275,000 | 3,860,000 |
| 20 | Montréal, Canada | 4,200,000 | 3,585,000 |
| 21 | Tampa, United States | 4,200,000 | 2,720,000 |
| 22 | Santo Domingo, Dominican Republic | 3,825,000 | 3,815,000 |
| 23 | Denver, United States | 3,650,000 | 2,755,000 |
| 24 | Orlando, United States | 3,275,000 | 2,205,000 |
| 25 | Minneapolis–St. Paul, United States | 3,100,000 | 2,885,000 |
| 26 | Guatemala City, Guatemala | 3,025,000 | 2,515,000 |
| 27 | Puebla, Mexico | 3,075,000 | 2,195,000 |
| 28 | Cleveland, United States | 3,050,000 | 1,760,000 |
| 29 | Port-au-Prince, Haiti | 3,050,000 | 2,850,000 |
| 30 | Cincinnati, United States | 2,750,000 | 1,675,000 |
| 31 | Vancouver, Canada | 2,725,000 | 2,335,000 |
| 32 | El Paso–Juárez, US and Mexico | 2,500,000 | 2,215,000 |
| 33 | Portland, United States | 2,375,000 | 2,075,000 |
| 34 | Charlotte, United States | 2,375,000 | 1,505,000 |
| 35 | St. Louis, United States | 2,350,000 | 2,170,000 |
| 36 | Salt Lake City, United States | 2,350,000 | 2,280,000 |
| 37 | San José, Costa Rica | 2,325,000 | 1,760,000 |
| 38 | Toluca, Mexico | 2,225,000 | 2,015,000 |
| 39 | Havana, Cuba | 2,225,000 | 2,020,000 |
| 40 | Las Vegas, United States | 2,200,000 | 2,130,000 |
| 41 | San Antonio, United States | 2,150,000 | 2,070,000 |
| 42 | Pittsburgh, United States | 2,050,000 | 1,740,000 |
| 43 | Sacramento, United States | 2,050,000 | 1,885,000 |
| 44 | San Juan, Puerto Rico | 2,050,000 | 2,135,000 |
| 45 | Kansas City, United States | 1,950,000 | 1,615,000 |
| 46 | Indianapolis, United States | 1,950,000 | 1,630,000 |
| 47 | León, Mexico | 1,870,000 | 1,660,000 |
| 48 | Austin, United States | 1,860,000 | 1,710,000 |
| 49 | San Salvador, El Salvador | 1,840,000 | 1,540,000 |
| 50 | Columbus, United States | 1,700,000 | 1,540,000 |