Statistic Leonia New Jersey National
Population 9,324 9,226,043 336,919,644
Population density (sq mi) 6,122 1,255 91
Median age 45.9 39.5 37.7
Male/Female ratio 0.9:1 1.0:1 1.0:1
Married (15yrs & older) 68% 56% 55%
Families w/ Kids under 18 39% 45% 43%
Speak English 48% 69% 79%
Speak Spanish 16% 16% 13%
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Overview of Leonia Demographics

Leonia demographics provide invaluable insights into the composition, dynamics and needs of urban and rural areas, enabling them to plan, develop, and govern in ways that promote prosperity, equity and well-being for all residents. The Leonia population is 9,324 and has a population density of 6,122 people per square mile, compared to the national average of 91. The median age of all residents is 45.9, 68% of people 15 years of age or older are married and 39% have kids under the age of 18. In Leonia, 11% of households have a median income that is below $25,000 and 41% of households report a median income above $150,000.

Leonia Racial Demographics & Ethnicity

Understanding the Leonia racial demographics and ethnic composition is paramount for addressing systemic inequities, advancing social justice and inclusion and fortifying communities. In Leonia, the racial breakdown indicates 46.6% White, 2.7% Black or African American, 37.6% Asian, 0.1% American Indian and 0.2% Native Hawaiian, with 22.4% of the population identifying as Hispanic or Latino. Notably, 47.6% of households reported speaking English only, while 15.7% reported speaking Spanish only. Additionally, 40.4% of residents were categorized as foreign-born.

Leonia Population Density

High population density areas are renowned for their extensive array of amenities and services, easily accessible to residents within walking distance or a short commute. From healthcare facilities and educational institutions to cultural venues, dining establishments, retail shops and public transportation options, these communities offer convenience and enrichment to their inhabitants. The Leonia population density is 6,122 people per square mile, well above the national average of 91, making it one of the most densely populated cities in the nation.

Why are Demographics Important?

Healthcare Planning: Analyzing the demographic data in Leonia has the potential to inform healthcare planning and delivery by identifying population health needs, disparities and risk factors. Healthcare providers and policymakers can allocate resources more effectively, develop prevention and intervention programs and address health inequities within communities by understanding demographic trends. Leveraging demographic statistics can enable healthcare providers and policymakers to strive for equitable, accessible and high-quality healthcare for all individuals and communities. This proactive healthcare planning approach ensures targeted interventions, efficient resource allocation and tailored healthcare services to meet diverse population needs.

Policy Planning: Demographic data and statistics serve as vital tools for informing policy and decision-making processes across various levels of government, as well as within organizations and businesses. Through the reporting and analysis of demographic data, policymakers, government officials, and organizational leaders can pinpoint areas of need, allocate resources efficiently, and craft tailored policies and programs to address the unique needs and priorities of different demographic groups. The utilization of demographic data in Leonia is instrumental in policy planning, facilitating resource allocation, evidence-based decision-making, priority identification, trend forecasting, policy impact assessment, and the promotion of equity and inclusion. By harnessing this data effectively, policymakers can devise targeted, impactful, and inclusive policies that cater to the diverse needs of communities.

Understanding Populations: By delving into and analyzing the Leonia demographic stats, we can uncover insightful details regarding the composition and attributes of populations, spanning age, gender, race, ethnicity, income, education and other socio-economic indicators. This comprehension is vital for addressing the diverse needs, preferences and hurdles faced by various demographic groups within communities. Demographics wield significant influence in understanding populations, shaping decision-making processes and championing equity, inclusion, and the overall welfare of all individuals and communities. The Leonia population and demographic data serves as a cornerstone for tackling social, economic and environmental challenges, while simultaneously nurturing the well-being and resilience of societies.

Demographics Quick Facts

  • The population density in Leonia is 388% higher than New Jersey
  • The median age in Leonia is 16% higher than New Jersey
  • In Leonia 46.56% of the population is White
  • In Leonia 2.74% of the population is Black
  • In Leonia 37.60% of the population is Asian

Compare Leonia, NJ Demographics

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      Leonia racial demographics

      Race Leonia New Jersey National
      White 46.56% 68.15% 73.35%
      Black 2.74% 13.54% 12.63%
      Asian 37.60% 9.19% 5.22%
      American Indian 0.08% 0.21% 0.82%
      Native Hawaiian 0.22% 0.03% 0.18%
      Mixed race 10.62% 2.53% 3.06%
      Other race 2.19% 6.35% 4.75%
      In Leonia, 22.4% 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

      Leonia age breakdown

      Marital status

      Age of children in married couples

      Source: The Leonia, NJ demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS) and include 2026 modeled data developed using proprietary methodologies.