Density is Natural

The benefits of living close to other people are evident even to hunter-gatherers. Though their societies have changed over the millennia, studying characteristics of present-day hunter-gatherers can let us peer into the past. That’s what was done by three anthropologists—Marcus Hamilton, Bruce Milne, and Robert Walker—and one ecologist—Jim Brown. In the process, they seem to have discovered a fundamental law that drives human agglomeration. Though their survey of 339 present-day hunter-gatherer societies doesn’t explicitly mention cities, it does show that as populations grow, people tend to live closer together—much closer together. For every doubling of population, the home ranges of hunter-gatherer groups increased by only 70 percent.

[Link to Density is Natural]

India’s Urban Slum Population

As per estimates of the Committee set up by Ministry of Housing and Urban Poverty Alleviation under the Chairmanship of Dr. Pranob Sen, Principal Adviser, Planning Commission (former Secretary, Ministry of Statistics & Programme Implementation, and Chief Statistician, Government of India) the slum population in the country is expected to touch 93.06 million by 2011.



India too conducts its census every ten years and the sheer size of numbers blows away your mind; Uttar Pradesh, one of the states in northern India now has a population of 200 million – almost two-thirds that of the entire U.S. Although 93.06 million in slums sounds like abject poverty, in reality its not exactly true. Some 'slums' in Mumbai are hotbeds of grassrooots entrepreneurship and although living conditions could be better, not all hope is lost.

[Link to India's Urban Slum Population]

The Value of Urban Clustering

The first, quite striking fact about this part of the country is an enormous stability in population patterns over time. Those counties that were highly populated remain so, and those less populated remain relatively less populated.



The first studies from the new Census have started streaming in. I've already done my first set of sampling from the new Census for a survey project that began this month. The data is as fresh as it can get :)

[Link to The Value of Urban Clustering]

Population Density Range in America

The most densely populated block group is one in New York County, New York — 3,240 people in 0.0097 square miles, for about 330,000 per square mile. The least dense is in the North Slope Borough of Alaska — 3 people in 3,246 square miles, or one per 1,082 square miles. The Manhattan block group I mention here is 360 million times more dense than the Alaska one.

As you see, America’s population density vary over a huge range. This is the reason why the electoral maps painted red and blue paint such a skewed picture of the country’s political preferences.