The following table presents a listing of the Dominican Republic's provinces and the dates of their creation.
| Province | Date Created | Preceding Entity | Old Names |
|---|---|---|---|
| Azua | March 12, 1844 | One of the Original 5 Provinces | |
| Baoruco | March 10, 1943 | Separated from Barahona Province | |
| Barahona | May 16, 1909 | Was first a Maritime District from 1870; originally was part of Azua Province before reform in 1845, became province on May 16, 1909 | Distrito Marítimo del Sur |
| Dajabón | April 19, 1938 | Separated from Monte Cristi Province | Libertador |
| Distrito Nacional | November 11, 1932 | Santo Domingo Separated into two Provinces | Provincia Nacional, Distrito de Santo Domingo |
| Duarte | February 27, 1897 | Was created out of the San Francisco de Macorís & San Antonio del Yuna municipalities separated from Espaillat Province; and Matanzas Municipality separated from the Samaná Province. | Distrito Pacifícador, Pacifícador |
| Elías Piña | September 16, 1942 | Separated from Benefactor Province | San Rafael, La Estrelleta |
| El Seibo | March 12, 1844 | One of the Original 5 Provinces | Seibo |
| Espaillat | February 27, 1885 | Moca, Jagua, and Juana Núñez separated from Puerto Plata Province; Cotuí, San Francisco de Macorís, & San Antonio del Yuna separated from La Vega Province; and Matanzas separated from Samaná Province so this province could be created. | |
| Hato Mayor | January 1, 1992 | Separated from El Seibo Province | |
| Hermanas Mirabal | March 3, 1952 | Separated from Espaillat Province | Salcedo |
| Independencia | January 1, 1950 | Separated from Baoruco Province | Jimaní, Nueva Era |
| La Altagracia | August 11, 1961 | Taken out of old La Altagracia Province (capital La Romana) which was split into two. | |
| La Romana | August 11, 1961 | Taken out of old La Altagracia Province (capital La Romana) which was split into two. | |
| La Vega | March 12, 1844 | One of the Original 5 Provinces | |
| María Trinidad Sánchez | February 27, 1959 | Separated from Samaná Province | Julia Molina |
| Monseñor Nouel | January 1, 1992 | Separated from La Vega Province | |
| Monte Cristi | September 9, 1907 | Was first a Maritime District from 1874; originally was part of Santiago Province before reform in 1845, became a province on September 9, 1907 | Distrito Marítimo Occidental |
| Monte Plata | January 1, 1992 | Separated from San Cristóbal Province | |
| Pedernales | December 16, 1957 | Separated from Barahona Province | |
| Peravia | November 23, 1944 | Separated from Azua Province | Baní, José Trujillo Valdez |
| Puerto Plata | February 27, 1850 | Was first a Maritime District from 1845; originally was part of Santiago Province before reform in 1845, became province on February 27, 1850 | Distrito Marítimo del Norte |
| Samaná | June 4, 1867 | Was first a Maritime District from 1845; originally was part of La Vega Province before reform in 1845, became province on June 4, 1867 | Distrito Marítimo Oriental |
| Sánchez Ramírez | July 9, 1952 | Separated from Duarte Province | |
| San Cristóbal | March 1, 1933 | Santo Domingo Separated into two Provinces | Alto Ozama, Trujillo |
| San José de Ocoa | January 1, 2002 | Separated from Peravia Province | |
| San Juan | June 20, 1938 | Separated from Azua Province | Benefactor, San Juan de la Maguana |
| San Pedro de Macorís | January 24, 1907 | Was first a Maritime District from 1860; originally was part of Santo Domingo Province before reform in 1845, became province on January 24, 1907 | Distrito Marítimo Centrosur |
| Santiago | March 12, 1844 | One of the Original 5 Provinces | |
| Santiago Rodríguez | October 22, 1948 | Separated from Monte Cristi Province | |
| Santo Domingo | October 16, 2001 | Separated from Distrito Nacional | |
| Valverde | January 1, 1959 | Separated from Santiago | Mao |
Extinct Province edit
There were two provinces that are extinct in the Dominican Republic.
| Extinct Province | Old Capital | Old Municipalities | Date Created | Date of Extinction | Province Separated | Integrated into/Converted to |
|---|---|---|---|---|---|---|
| Alto Ozama | San Cristóbal | Baní, Bayaguana, Monte Plata, Sabana Grande de Boyá, San Cristóbal, Villa Altagracia, Yamasá | November 10, 1932 | March 1, 1933 | When Santo Domingo Province split into two provinces, created this province alongside Provincia Nacional Province | Merged with Ozama Province to make Trujillo Province |
| La Altagracia | La Romana | Guaymate, La Romana, Salvaleón de Higüey, San Rafael del Yuma | September 14, 1944 | August 11, 1961 | Seibo Province | La Romana Province, new La Altagracia Province |
| Monseñor de Meríño | Monte Plata | Bayaguana, Boca Chica, La Victoria, Monte Plata, Sabana Grande de Boyá, San Antonio de Guerra, San Luis, Villa Mella, Yamasá |
April 12, 1938 | March 4, 1946 | Trujillo Province | The municipalities Boca Chica, La Victoria, San Antonio de Guerra, San Luis, and Villa Mella merged with the Municipality of Santo Domingo and became sectors of the city in the Distrito Santo Domingo, the rest of the municipalities went back to Trujillo Province. |
| Ozama | Villa Mella | Boca Chica, La Victoria, San Antonio de Guerra, San Luis, Villa Mella | January 3, 1928 | March 1, 1928 | Santo Domingo Province | Merged with Ozama Province to make Trujillo Province |
| Provincia Nacional | Herrera | Herrera, Los Alcarrizos, Los Mina, Pedro Brand, Santo Domingo | November 10, 1932 | January 1, 1935 | When Santo Domingo Province split into two provinces, created this province alongside Alto Ozama Province | Distrito Nacional (all the municipalities merged to one, Santo Domingo) |
| Santo Domingo | San Cristóbal | Baní, Bayaguana, Herrera, Los Alcarrizos, Los Mina, Monte Plata, Pedro Brand, Sabana Grande de Boyá, San Cristóbal, Santo Domingo, Villa Altagracia, Yamasá | March 12, 1844 | November 10, 1932 | One of the Original 5 Provinces | Alto Ozama Province, Provincia Nacional |