| Statistic | Los Alamos | New Mexico | National |
| Population | 13,326 | 2,151,878 | 336,919,644 |
| Population density (sq mi) | 1,198 | 18 | 91 |
| Median age | 41.7 | 37.2 | 37.7 |
| Male/Female ratio | 1.1:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 61% | 52% | 55% |
| Families w/ Kids under 18 | 38% | 42% | 43% |
| Speak English | 83% | 65% | 79% |
| Speak Spanish | 7% | 28% | 13% |

The population in Los Alamos is 13,326, while the population density is 1,198 people per square mile, contrasting with the national average of 91. The median age stands at 41.7, with 61% of individuals aged 15 or older being married and 38% having children under 18. In terms of household income equality in Los Alamos, 7% of households report a median income below $25,000, while 43% report an income exceeding $150,000. The Los Alamos 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.
The Los Alamos 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 Los Alamos is 79.8% White, 1% Black or African American, 6.6% Asian, 1.2% American Indian and 0% Native Hawaiian - 19.2% of the population identify as Hispanic or Latino. Of all households, 83.1% reported speaking English only, while 7.5% reported speaking Spanish only. A total of 10.7% of residents were considered foreign born.
Los Alamos 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 Los Alamos population density is 1,198, surpassing the national average of 91 per square miles, positioning itself to capitalize on the advantages of dense urban living.
Understanding Populations: Analyzing and interpreting the Los Alamos 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 Los Alamos 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.
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 Los Alamos 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.
Healthcare Planning: The analysis of Los Alamos 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.

Why stop at city-to-city? With Local Insights, you can compare neighborhoods, zip codes, or even exact addresses. Access 300+ hyperlocal data points—from schools and crime to housing and amenities—to see which area is the better fit.
| Race | Los Alamos | New Mexico | National |
| White | 79.81% | 73.49% | 73.35% |
| Black | 1.01% | 2.01% | 12.63% |
| Asian | 6.64% | 1.40% | 5.22% |
| American Indian | 1.23% | 9.28% | 0.82% |
| Native Hawaiian | 0.00% | 0.06% | 0.18% |
| Mixed race | 8.53% | 3.26% | 3.06% |
| Other race | 2.78% | 10.49% | 4.75% |