About half of Dominicans live in rural areas; many are small landholders. Haitians form the largest foreign minority group. All religions are tolerated; the
state religion is Roman Catholicism. 
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| 1990 | 2000 | 2010 | 2020 | |
| Population, total (millions) | 7.13 | 8.47 | 9.7 | 10.85 | 
| Population growth (annual %) | 1.9 | 1.5 | 1.2 | 1 | 
| Surface area (sq. km) (thousands) | 48.7 | 48.7 | 48.7 | 48.7 | 
| Population density (people per sq. km of land area) | 147.7 | 175.4 | 200.7 | 224.5 | 
| Poverty headcount ratio at national poverty lines (% of population) | .. | .. | .. | 21 | 
| Poverty headcount ratio at $1.90 a day (2011 PPP) (% of population) | 13.4 | 5.5 | 2.5 | 0.6 | 
| Income share held by lowest 20% | 4.2 | 3.7 | 4.6 | 6 | 
| Life expectancy at birth, total (years) | 67 | 69 | 72 | 74 | 
| Fertility rate, total (births per woman) | 3.4 | 2.8 | 2.5 | 2.3 | 
| Adolescent fertility rate (births per 1,000 women ages 15-19) | 111 | 108 | 100 | 92 | 
| Contraceptive prevalence, any methods (% of women ages 15-49) | 56 | 65 | 73 | .. | 
| Births attended by skilled health staff (% of total) | 92 | 98 | 98 | .. | 
| Mortality rate, under-5 (per 1,000 live births) | 60 | 41 | 34 | 28 | 
| Prevalence of underweight, weight for age (% of children under 5) | 8.4 | 3.3 | 4 | .. | 
| Immunization, measles (% of children ages 12-23 months) | 70 | 85 | 85 | 96 | 
| Primary completion rate, total (% of relevant age group) | .. | 79 | 93 | 96 | 
| School enrollment, primary (% gross) | 100.2 | 115.8 | 110.5 | 105.7 | 
| School enrollment, secondary (% gross) | .. | 60 | 78 | 80 | 
| School enrollment, primary and secondary (gross), gender parity index (GPI) | .. | 1 | 1 | 1 | 
| Prevalence of HIV, total (% of population ages 15-49) | 0.5 | 1.9 | 1.2 | 0.9 | 
| Environment | ||||
| Forest area (sq. km) (thousands) | 15.9 | 19.7 | 20.7 | 21.4 | 
| Terrestrial and marine protected areas (% of total territorial area) | .. | .. | .. | 19.2 | 
| Annual freshwater withdrawals, total (% of internal resources) | .. | 21.7 | 33.7 | 38.6 | 
| Urban population growth (annual %) | 2.4 | 2.9 | 2.9 | 1.9 | 
| Energy use (kg of oil equivalent per capita) | 563 | 852 | 777 | .. | 
| CO2 emissions (metric tons per capita) | 1.1 | 2.2 | 2.13 | 2.36 |