Statistic Groton Connecticut National
Population 8,999 3,565,287 328,239,523
Population density (sq mi) 2,919 736 91
Median age 34.2 40.6 37.7
Male/Female ratio 1.0:1 1.0:1 1.0:1
Married (15yrs & older) 37% 54% 55%
Families w/ Kids under 18 40% 43% 43%
Speak English 83% 78% 79%
Speak Spanish 10% 12% 13%

Overview of Groton Demographics

The population in Groton is 8,999, while the population density is 2,919 people per square mile, contrasting with the national average of 91. The median age stands at 34.2, with 37% of individuals aged 15 or older being married and 40% having children under 18. In terms of household income equality in Groton, 24% of households report a median income below $25,000, while 17% report an income exceeding $150,000. The Groton demographics data can provide invaluable insight into the composition, dynamics and needs of urban and rural areas, enabling planners, developers and policymakers to strategize effectively for the promotion of prosperity, equity and well-being for all residents in the area.

Groton Racial Demographics & Ethnicity

Understanding the Groton racial demographics and ethnic composition is paramount for addressing systemic inequities, advancing social justice and inclusion and fortifying communities. In Groton, the racial breakdown indicates 67.4% White, 9.4% Black or African American, 7.4% Asian, 0.1% American Indian and 0% Native Hawaiian, with 21.1% of the population identifying as Hispanic or Latino. Notably, 82.6% of households reported speaking English only, while 9.8% reported speaking Spanish only. Additionally, 11.6% of residents were categorized as foreign-born.

Groton Population Density

High population density areas typically offer a diverse array of amenities and services within walking distance or a short commute, enriching residents' quality of life and well-being. Accessible healthcare facilities, educational institutions, cultural venues, restaurants, shopping and public transportation options contribute to the convenience and vibrancy of these communities. The population density of of Groton is 2,919 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the nation.

Why are Demographics Important?

Healthcare Planning: The analysis of Groton demographics can offer insights into healthcare planning and delivery, identifying population health needs, disparities and risk factors. By understanding demographic trends, healthcare providers and policymakers can allocate resources effectively, develop prevention and intervention programs and address health inequities within communities. Through the use of demographic data and statistics, healthcare providers and policymakers aim to achieve equitable, accessible and high-quality healthcare for all individuals and communities. This proactive approach to healthcare planning ensures targeted interventions, efficient resource allocation and customized healthcare services to meet the diverse needs of populations.

Urban Development: Urban planners could use Groton demographic data to design and create areas that accommodate the needs of residents, including housing, transportation and public services, while promoting sustainability and quality of life. Demographic shifts can contribute to gentrification and neighborhood change in urban or rural areas. As neighborhoods attract new residents with different income levels and lifestyle preferences, property values may rise, leading to displacement of long-time residents and changes in the character and identity of the neighborhood. Understanding population density, age distribution, household size and income levels helps inform decisions related to zoning, transportation infrastructure, housing development and public amenities. Lastly, using Groton demographics for planning and development of affordable housing can help prevent displacement.

Understanding Populations: Analyzing and interpreting the Groton demographic data provides us with valuable insights into the characteristics and composition of populations, encompassing age, gender, race, ethnicity, income, education and other socio-economic variables. This understanding is crucial for addressing the diverse needs, preferences and challenges encountered by various demographic groups within communities. Demographics play a crucial role in understanding populations, informing decision-making processes, and advancing equity, inclusion, and overall well-being for all individuals and communities. The Groton population and demographic data serves as a foundation for addressing social, economic and environmental challenges, while also nurturing the well-being and resilience of societies.

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Demographics Quick Facts

  • The population density in Groton is 297% higher than Connecticut
  • The median age in Groton is 16% lower than Connecticut
  • In Groton 67.35% of the population is White
  • In Groton 9.38% of the population is Black
  • In Groton 7.37% of the population is Asian

Compare Groton, CT Demographics


      Groton racial demographics

      Race Groton Connecticut National
      White 67.35% 77.14% 73.35%
      Black 9.38% 10.39% 12.63%
      Asian 7.37% 4.26% 5.22%
      American Indian 0.11% 0.26% 0.82%
      Native Hawaiian 0.00% 0.03% 0.18%
      Mixed race 9.99% 2.98% 3.06%
      Other race 5.80% 4.95% 4.75%
      In Groton, 21.1% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Groton age breakdown

      Marital status

      Age of children in married couples

      Source: The Groton, CT demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS).