| Statistic | Plains | Pennsylvania | National |
| Population | 4,108 | 13,262,738 | 336,919,644 |
| Population density (sq mi) | 3,213 | 296 | 91 |
| Median age | 48.9 | 40.6 | 37.7 |
| Male/Female ratio | 0.8:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 52% | 56% | 55% |
| Families w/ Kids under 18 | 20% | 40% | 43% |
| Speak English | 90% | 89% | 79% |
| Speak Spanish | 4% | 5% | 13% |

Plains 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 Plains population is 4,108 and has a population density of 3,213 people per square mile, compared to the national average of 91. The median age of all residents is 48.9, 52% of people 15 years of age or older are married and 20% have kids under the age of 18. In Plains, 25% of households have a median income that is below $25,000 and 10% of households report a median income above $150,000.
The Plains 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 Plains is 88.2% White, 9.9% Black or African American, 0% Asian, 0% American Indian and 0% Native Hawaiian - 2.4% of the population identify as Hispanic or Latino. Of all households, 89.7% reported speaking English only, while 4.1% reported speaking Spanish only. A total of 5.3% of residents were considered foreign born.
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 Plains is 3,213 people per square mile, which far exceeds the national average of 91 and ranks among the most densely populated cities in the nation.
In a city like Plains with fewer children, there are numerous advantages tailored to a demographic where families with fewer or no children seek an ideal environment. These benefits may encompass a serene atmosphere, a heightened emphasis on amenities geared towards adults, reduced traffic congestion and enhanced affordability. Notably, one of the key advantages could be the wider availability of housing options designed to suit adult residents or smaller households. This may include a variety of housing types such as condominiums, apartments, or single-family homes tailored for couples or individuals without children, thereby offering a diverse range of choices for prospective buyers or renters. Areas with fewer children may also signal that the locale is conducive to retirees or seniors. In Plains, only 20% of the population consists of children under 18 years old, significantly below the national average. Additionally, 52% of residents aged over 15 are married. These demographics could suggest a promising environment for capitalizing on all the benefits of a city with fewer children.
Urban Development: Plains demographic statistics are invaluable for urban planners in designing and developing areas that cater to residents' needs, encompassing housing, transportation, and public services, all while fostering sustainability and enhancing quality of life. Shifts in demographics can influence gentrification and neighborhood transformation, whether in urban or rural settings. As neighborhoods attract new residents with varying income levels and lifestyle preferences, property values may increase, potentially displacing long-term residents and altering the neighborhood's character. Analyzing population density, age distribution, household size, and income levels is crucial for guiding decisions regarding zoning, transportation infrastructure, housing expansion and public amenities. Utilizing Plains demographic data in planning and executing affordable housing initiatives can serve as a preventive measure against displacement.
Policy Planning: Demographic data and statistics play a fundamental role in informing policy and decision-making processes across government entities, organizations and businesses. Through the analysis and interpretation of Plains demographic data, policymakers, government officials, and organizational leaders can pinpoint areas of concern, allocate resources efficiently, and devise policies and initiatives tailored to the specific needs and preferences of distinct demographic groups. The utilization of demographics in Plains can be crucial in policy planning, facilitating evidence-based decision-making, identifying key priorities, forecasting future trends, monitoring policy outcomes and advancing principles of equity and inclusion. By harnessing this data effectively, policymakers can develop policies that are targeted, effective and inclusive, thus meeting the diverse needs of communities.
Healthcare Planning: Analyzing the demographic data in Plains 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.
| Race | Plains | Pennsylvania | National |
| White | 88.18% | 81.37% | 73.35% |
| Black | 9.88% | 11.03% | 12.63% |
| Asian | 0.00% | 3.14% | 5.22% |
| American Indian | 0.00% | 0.20% | 0.82% |
| Native Hawaiian | 0.00% | 0.03% | 0.18% |
| Mixed race | 1.29% | 2.24% | 3.06% |
| Other race | 0.66% | 1.98% | 4.75% |