Largest Census-Designated Places by Population in Guam
56 census-designated places in Guam, ranked by population at the census of April 1, 2020 (by U.S. Census Bureau). Census-designated places are settlements the census bureau outlines for counting. They have no local government of their own.
| Rank | Census-Designated Place | Population |
|---|---|---|
| 1 | Dededo | 6,855 |
| 2 | Machanao | 5,809 |
| 3 | Apotgan | 5,224 |
| 4 | Y Papao | 5,213 |
| 5 | Mangilao | 5,145 |
| 6 | Liguan | 4,653 |
| 7 | Mataguac | 4,653 |
| 8 | Upper Tumon | 4,081 |
| 9 | North Gayinero | 3,997 |
| 10 | Astumbo | 3,921 |
| 11 | Tamuning | 3,892 |
| 12 | Chalan Pago | 3,826 |
| 13 | South Gayinero | 3,807 |
| 14 | Machananao East | 3,643 |
| 15 | Adacao | 3,638 |
| 16 | Agana Heights | 3,616 |
| 17 | Barrigada | 3,559 |
| 18 | Macheche | 3,500 |
| 19 | University of Guam | 3,388 |
| 20 | Agat | 3,292 |
| 21 | Machananao West | 3,246 |
| 22 | Ordot | 3,238 |
| 23 | Mongmong | 3,123 |
| 24 | Yona | 3,065 |
| 25 | Mogfog | 2,998 |
| 26 | Apra Harbor | 2,930 |
| 27 | Wusstig | 2,687 |
| 28 | Chaguian | 2,524 |
| 29 | Toto | 2,443 |
| 30 | Anao | 2,385 |
| 31 | Talofofo | 2,279 |
| 32 | Barrigada Heights | 2,239 |
| 33 | Windward Hills | 2,106 |
| 34 | Tumon | 2,072 |
| 35 | Andersen Air Force Base | 1,973 |
| 36 | Sinajana | 1,813 |
| 37 | Oka | 1,808 |
| 38 | Merizo | 1,538 |
| 39 | Harmon Industrial Park | 1,389 |
| 40 | Pagat | 1,302 |
| 41 | Malojloj | 1,154 |
| 42 | Ipan | 1,153 |
| 43 | Y Sengsong | 1,050 |
| 44 | Santa Rita | 973 |
| 45 | Hagåtña (Agana) | 943 |
| 46 | Inarajan | 896 |
| 47 | Asan | 860 |
| 48 | Nimitz Hill | 845 |
| 49 | Afame | 771 |
| 50 | Ukudu | 704 |
| 51 | Maite | 685 |
| 52 | Maina | 676 |
| 53 | Piti | 596 |
| 54 | Umatac | 448 |
| 55 | Nimitz Hill Annex | 123 |
| 56 | Naval Hospital | 57 |
Source: U.S. Census Bureau (2020 census), via City Population by Thomas Brinkhoff.