This first-of-its-kind list offers new insight into how geography and climate are shaping tick populations. Post this States like California, Florida, Texas, Pennsylvania and New York are at the top of this list due to their warm climates, high humidity and abundance of green spaces. Notably, New York City, Los Angeles, Philadelphia, San Francisco and Washington, D.C. rank as the top five tick-infested cities in the country, underscoring that even densely populated urban areas are not immune to tick activi ...