| Statistic | Charlestown | Maryland | National |
| Population | 1,590 | 6,178,543 | 336,919,644 |
| Population density (sq mi) | 1,360 | 636 | 91 |
| Median age | 35.5 | 38.3 | 37.7 |
| Male/Female ratio | 1.1:1 | 0.9:1 | 1.0:1 |
| Married (15yrs & older) | 54% | 54% | 55% |
| Families w/ Kids under 18 | 47% | 44% | 43% |
| Speak English | 99% | 82% | 79% |
| Speak Spanish | 0% | 7% | 13% |

The population of Charlestown is 1,590, with a population density of 1,360 people per square mile, diverging from the national average of 91. The median age is 35.5 and 54% of individuals aged 15 or older are married, while 47% have children under 18. As far as income equality in Charlestown goes, 7% of households have a median income below $25,000, whereas 21% report an income exceeding $150,000. The Charlestown demographics data can provide indispensable insights into the composition, dynamics and needs of cities, towns or even villages, empowering planners, developers and policymakers to devise strategies that foster prosperity, equity and well-being for all residents.
The Charlestown racial demographics and ethnicity breakdown serves as a critical tool for understanding and addressing systemic inequities, promoting social justice and inclusion and building stronger, more resilient communities. The racial breakdown in Charlestown is 92.1% White, 1.4% Black or African American, 0.5% Asian, 0% American Indian and 0% Native Hawaiian - 2.6% of the population identify as Hispanic or Latino. Of all households, 99.1% reported speaking English only, while 0.2% reported speaking Spanish only. A total of 0.3% of residents were considered foreign born.
Charlestown could serve as a prime example of how areas with higher-than-average population density can champion environmental sustainability by reducing per capita energy consumption, greenhouse gas emissions and land use. Embracing compact urban development, these densely populated areas promote energy-efficient buildings and encourages walking, cycling and public transit use, fostering sustainable lifestyles and minimizing environmental impact. Moreover, densely populated regions are renowned for their vibrant social and cultural scenes, driven by a diverse population that organizes an array of cultural events, festivals and community activities. This cultural diversity ignites creativity, innovation and cross-cultural exchange, enriching the social fabric of the community. The Charlestown population density is 1,360, surpassing the national average of 91 per square miles, positioning itself to capitalize on the advantages of dense urban living.
Education Allocation: In education planning, Charlestown demographic data can be invaluable for identifying student demographics, school enrollment trends and educational needs. This data aids schools and policymakers in resource allocation and the formulation of effective educational programs. It serves as a crucial tool for recognizing disparities in educational access and outcomes among different demographic groups, including racial and ethnic minorities, socio-economic status and students with disabilities. Through the disaggregation of data by demographic factors, education planners can pinpoint areas of inequity and implement targeted interventions to enhance access, support, and outcomes for marginalized students. Overall, Charlestown demographic data can be an essential tool in education for promoting equity, facilitating student success, and nurturing inclusive learning environments that cater to the needs of all students.
Understanding Populations: The examination and analysis of Charlestown demographic data can offer valuable insights into the composition and traits of populations, including age, gender, race, ethnicity, income, education and various socio-economic factors. This understanding is essential for addressing the varied needs, preferences, and challenges faced by different demographic groups within communities. Demographics hold significant importance in understanding populations, guiding decision-making processes and promoting equity, inclusion, and overall well-being for all individuals and communities. The Charlestown population data serves as a cornerstone for addressing social, economic and environmental challenges, while also fostering the well-being and resilience of societies.
Social Cohesion: Analyzing demographics is vital for nurturing social cohesion and fostering understanding among diverse communities. By embracing and respecting variations in Charlestown demographics, societies can advance inclusivity, diversity and social unity while combatting social inequalities and advocating for equal opportunities. Racial demographics mirror the diversity within a population and can be instrumental in cultivating inclusive and inviting communities. Embracing diversity strengthens social bonds, fosters cultural appreciation and enriches society by acknowledging the contributions of individuals from various racial and ethnic backgrounds.
| Race | Charlestown | Maryland | National |
| White | 92.09% | 57.19% | 73.35% |
| Black | 1.44% | 29.63% | 12.63% |
| Asian | 0.52% | 6.08% | 5.22% |
| American Indian | 0.00% | 0.27% | 0.82% |
| Native Hawaiian | 0.00% | 0.05% | 0.18% |
| Mixed race | 4.84% | 3.12% | 3.06% |
| Other race | 1.11% | 3.67% | 4.75% |