Immigration-driven population growth is constraining the movements of wildlife, especially for large mammals like wolves which require room to roam. Projected future growth under current federal immigration policy is likely to cause more human-wildlife conflicts.

“Idahoans want less, not more, population growth,” by Leon Kolankiewicz, Idaho State Journal

NumbersUSA's sprawl studies have, for more than two decades, explored the role of population growth in each county in each state and the role of a multiplicity of decisions by government, business, and individuals that increase the average amount of developed land for each person in each county. Our sprawl studies have been cited in scholarly literature over a hundred times in over a dozen languages.

It was my first year joining the NumbersUSA team at Fair Park in Dallas, TX for the annual EarthX event! In general, it was fun and rewarding to be able to share important information with our booth visitors about the impacts of urban sprawl and population growth, both locally and nationally. Most passersby agreed that … Continued

David Brower, the first executive director of the Sierra Club, knew that reducing immigration levels was a necessary part of population stabilization and achieving authentic sustainability.  He said: “Overpopulation is perhaps the biggest problem facing us, and immigration is part of that problem. It has to be addressed.”

Back in 1972, the rate of legal immigration into the U.S. was around 400,000, as was illegal immigration.  Legal immigration now amounts to 1.2 million, which pales next to the rate of illegal immigration at 2.5 – 3.0 million per year. 

Despite the Clean Water Act, many of America’s rivers are suffering, with no relief in sight, as our population continues to soar to unprecedented levels.  The Census Bureau projects America’s population will grow by another 75 million in the next 40 years, with roughly 90% of that caused by immigration.  It’s significant that this projection was made before the immigration surge at the southern border, where illegal immigration has become more than twice as high as legal.

Our North Carolina report continues the secondary-migration theme of our Idaho study. Americans are leaving states with high immigration-driven population growth.

In a state where 95% of the land is privately owned, the trade-off between unchecked population growth and open space preservation in Texas is clear.