Contents
The provinces of Latium and all cities of more than 20.000 inhabitants.
Provinces
| | Name | Abbr. | Status | Adm. | Capital | A (kmē) | C 1991-10-20 | C 2001-10-21 | Cf 2011-10-09 |
| i | Frosinone | | Prov | LAZ | Frosinone | 3,243 | 479,559 | 484,566 | 492,661 |
| i | Latina | | Prov | LAZ | Latina | 2,250 | 476,282 | 491,230 | 544,732 |
| i | Rieti | | Prov | LAZ | Rieti | 2,750 | 144,942 | 147,410 | 155,164 |
| i | Roma | | Prov | LAZ | Roma | 5,352 | 3,761,067 | 3,700,424 | 3,997,465 |
| i | Viterbo | | Prov | LAZ | Viterbo | 3,614 | 278,521 | 288,783 | 312,864 |
| i | Lazio [Latium] | LAZ | Reg | | Roma | 17,207 | 5,140,371 | 5,112,413 | 5,502,886 |
| | Italy | ITA | | | Roma | 301,308 | 56,778,031 | 56,995,744 | 59,433,744 |
- Istituto Nazionale di Statistica Italia (web).
Principal Cities
| | Name | C Cf 2011-10-09 |
| 1 | Roma | 2,617,175 |
| 2 | Latina | 117,892 |
| 3 | Guidonia Montecelio | 81,447 |
| 4 | Fiumicino | 67,626 |
| 5 | Aprilia | 66,979 |
| 6 | Viterbo | 63,209 |
| 7 | Pomezia | 56,372 |
| 8 | Tivoli | 52,910 |
| 9 | Velletri | 52,295 |
| 10 | Civitavecchia | 51,229 |
Cities
| | Name | C C 1981-10-25 | C C 1991-10-20 | C C 2001-10-21 | C Cf 2011-10-09 |
| i | Alatri | 22,809 | 25,038 | 27,068 | 28,609 |
| i | Albano Laziale | 28,062 | 31,399 | 33,692 | 38,433 |
| i | Anagni | 18,618 | 19,314 | 19,134 | 21,441 |
| i | Anzio | 27,169 | 33,497 | 36,952 | 49,731 |
| i | Aprilia | 37,807 | 47,037 | 56,028 | 66,979 |
| i | Ardea | 10,175 | 16,854 | 26,711 | 44,202 |
| i | Cassino | 31,462 | 32,787 | 32,762 | 33,658 |
| i | Ceccano | 20,927 | 22,121 | 22,334 | 23,098 |
| i | Cerveteri | 12,775 | 20,625 | 26,772 | 35,207 |
| i | Ciampino | 32,349 | 35,685 | 36,074 | 37,235 |
| i | Cisterna di Latina | 28,189 | 31,463 | 32,584 | 35,551 |
| i | Civitavecchia | 49,389 | 51,201 | 50,032 | 51,229 |
| i | Colleferro | 20,259 | 20,392 | 20,723 | 21,574 |
| i | Ferentino | 17,695 | 19,149 | 20,103 | 20,966 |
| i | Fiumicino | ... | 41,342 | 50,535 | 67,626 |
| i | Fondi | 27,915 | 31,169 | 31,023 | 37,180 |
| i | Fonte Nuova | ... | 17,876 | 22,676 | 30,572 |
| i | Formia | 30,399 | 34,957 | 34,931 | 36,331 |
| i | Frascati | 18,896 | 20,123 | 19,314 | 20,755 |
| i | Frosinone | 44,644 | 45,815 | 48,636 | 46,649 |
| i | Gaeta | 23,379 | 22,334 | 21,179 | 20,762 |
| i | Genzano di Roma | 17,536 | 20,570 | 22,178 | 23,780 |
| i | Grottaferrata | 14,829 | 16,361 | 17,663 | 19,156 |
| i | Guidonia Montecelio | 50,816 | 57,473 | 67,516 | 81,447 |
| i | Ladispoli | 12,319 | 19,319 | 29,968 | 37,293 |
| i | Latina | 93,738 | 106,203 | 107,898 | 117,892 |
| i | Marino | 30,772 | 32,903 | 32,706 | 38,245 |
| i | Mentana | ... | 14,413 | 16,288 | 20,772 |
| i | Monterotondo | 26,195 | 30,124 | 34,376 | 39,502 |
| i | Nettuno | 29,423 | 33,827 | 36,080 | 45,460 |
| i | Palestrina | ... | 15,802 | 17,234 | 20,498 |
| i | Pomezia | 29,925 | 37,512 | 43,960 | 56,372 |
| i | Rieti | 43,079 | 43,095 | 43,785 | 46,187 |
| i | Roma [Rome] | 2,840,259 | 2,775,250 | 2,546,804 | 2,617,175 |
| i | Sezze | 19,896 | 21,457 | 21,935 | 24,114 |
| i | Sora | 25,675 | 26,089 | 26,029 | 26,247 |
| i | Terracina | 36,840 | 37,077 | 36,633 | 44,233 |
| i | Tivoli | 50,985 | 52,372 | 49,342 | 52,910 |
| i | Velletri | 41,213 | 43,423 | 48,236 | 52,295 |
| i | Veroli | 18,265 | 19,229 | 19,818 | 20,763 |
| i | Viterbo | 57,632 | 58,380 | 59,308 | 63,209 |
- Istituto Nazionale di Statistica Italia (web).