| ISO-3166-2 | Fips | GN | Name of Subdivision | Type | Capital | Population | lang | continent | From | Till |
1 | | | AH | Agana Heights  | municipality | Agana Heights Village | 3,940 | | OC | | |
2 | | | AN | Hagåtña  | municipality | Hagåtña | 1,100 | | OC | | |
3 | | | AS | Asan  | municipality | Asan-Maina Village | 2,137 | | OC | | |
4 | | | AT | Agat  | municipality | Agat Village | 5,656 | | OC | | |
5 | | | BA | Barrigada  | municipality | Barrigada Village | 8,875 | | OC | | |
6 | | | CP | Chalan-Pago-Ordot  | municipality | Chalan Pago-Ordot Village | 6,822 | | OC | | |
7 | | | DD | Dededo  | municipality | Dededo Village | 44,943 | | OC | | |
8 | | | IN | Inarajan  | municipality | Inarajan Village | 3,052 | | OC | | |
9 | | | MA | Mangilao  | municipality | Mangilao Village | 15,191 | | OC | | |
10 | | | ME | Merizo  | municipality | Merizo Village | 1,850 | | OC | | |
11 | | | MT | Mongmong-Toto-Maite  | municipality | Mongmong-Toto-Maite Village | 6,825 | | OC | | |
12 | | | PI | Piti  | municipality | Piti Village | 1,666 | | OC | | |
13 | | | SJ | Sinajana  | municipality | Sinajana Village | 2,592 | | OC | | |
14 | | | SR | Santa Rita  | municipality | Santa Rita Village | 7,500 | | OC | | |
15 | | | TF | Talofofo  | municipality | Talofofo Village | 3,215 | | OC | | |
16 | | | TM | Tamuning  | municipality | Tamuning-Tumon-Harmon Village | 19,685 | | OC | | |
17 | | | UM | Umatac  | municipality | Umatac Village | 903 | | OC | | |
18 | | | YG | Yigo  | municipality | Yigo Village | 20,539 | | OC | | |
19 | | | YN | Yona  | municipality | Yona Village | 6,484 | | OC | | |