Population Density
Definition
The number of people per unit of land area, typically expressed as people per square mile (US) or people per square kilometer (international).
Why It Matters
Population density shapes urban planning, infrastructure needs, housing markets, and quality of life. High-density areas need more public transit, vertical housing, and shared spaces. Low-density areas require more road infrastructure and car dependence.
How It's Measured
Calculated by dividing total population by total land area. Water areas are excluded.
Current Value
US average: approximately 94 people/sq mi; NYC: 28,000/sq mi; Wyoming: 6/sq mi
Related Terms
Frequently Asked Questions
The number of people per unit of land area, typically expressed as people per square mile (US) or people per square kilometer (international).
Population density shapes urban planning, infrastructure needs, housing markets, and quality of life. High-density areas need more public transit, vertical housing, and shared spaces. Low-density areas require more road infrastructure and car dependence.
Calculated by dividing total population by total land area. Water areas are excluded.