* Irregular shape: The US has a very irregular shape, with both a curved coastline and a long, narrow western border.
* Different ways to measure: You could measure by:
* Land area: This would favor the center of the contiguous US, but ignore Alaska and Hawaii.
* Population density: This would shift the center towards more populated areas.
* Geographic coordinates: This would be a more straightforward approach, but still not perfectly equidistant due to the irregular shape.
However, there are some commonly accepted "centers" of the US:
* Geographic Center: This is often considered the most accurate "middle" point. It's located in North Dakota, near the town of Rugby.
* Population Center: This is calculated based on population density and is constantly shifting. It's currently somewhere in Missouri.
* Center of Gravity: This is calculated based on the weight of the country and is also constantly shifting.
Ultimately, the "exact middle" of the US depends on how you define it and what metric you use to measure it.
