A tick resting on a plant leaf. Find out which states have the highest tick activity with this list from the tick control experts at Arrow Environmental Services.

What States Have the Highest Tick Activity?

Ticks are found throughout the United States and can create problems in many different environments. Their presence is not limited to one area, and activity can increase wherever conditions support their survival. At Arrow Environmental Services, we often remind people that tick exposure is possible in both natural and maintained outdoor spaces.

Several factors contribute to higher tick risks in certain locations. Multiple species may be present, along with vegetation, wildlife hosts, and suitable places to live and reproduce. Properties in Florida and similar areas can experience increased tick populations when these conditions come together.

Working with a professional tick exterminator ensures that your property is treated safely and thoroughly to minimize the threat of tick-borne illnesses.

Top 5 States with the Highest Tick Activity

  • California: Known for very high tick numbers, especially the Western deer tick, which is common in coastal and wooded regions.
  • Florida: Warm temperatures and high humidity throughout the year allow species such as the American dog tick to remain active and reproduce continuously.
  • Texas: Its size, diverse terrain, and consistently warm climate make it a key area for multiple tick species and sustained tick activity.
  • Pennsylvania: Frequently reports some of the highest Lyme disease case numbers, supported by dense populations of black-legged ticks.
  • New York: Regularly experiences significant tick activity, with ongoing concerns involving Lyme disease and other tick-borne illnesses.

Yes, unfortunately, Florida has a significant tick presence, including species known to spread harmful diseases. This makes the risk of tick bites and related infections higher here than in many other areas.

Which States Face the Greatest Risk from Lyme Disease Ticks?

Lyme disease has been identified across most of the United States and remains one of the most concerning tick-borne illnesses. It is transmitted by deer ticks, which live in many different environments and can come into contact with people in both residential and natural settings. The widespread presence of these ticks means exposure is possible in many areas.

According to the Centers for Disease Control and Prevention, certain parts of the country consistently report higher numbers of Lyme disease cases than others. These areas tend to have established tick populations and conditions that support their survival. The following list highlights the states with the most reported cases of tick-borne Lyme disease: 

  • Washington, D.C.
  • Pennsylvania
  • New Jersey
  • New York
  • Connecticut
  • Delaware
  • Maine
  • Maryland
  • Massachusetts
  • Minnesota
  • New Hampshire
  • Rhode Island
  • Vermont
  • Virginia
  • West Virginia
  • Wisconsin

Although Florida is not ranked among the highest risk areas for Lyme disease, ticks capable of carrying harmful illnesses are still present. Residents should remain aware and take preventive steps, especially when spending time outdoors in grassy or wooded areas.

Which States Are Most Affected by Heartland Virus-Carrying Ticks?

Spread by the Lone Star tick, Heartland virus is a relatively new health concern. Symptoms often include fever, fatigue, reduced white blood cells and platelets, and occasional liver issues. Awareness has grown as more cases are identified.

Although infections are uncommon, Heartland virus has appeared in multiple locations. The states where cases have been reported include:

  • Virginia
  • Arkansas
  • Georgia
  • Illinois
  • Indiana
  • Iowa
  • Kansas
  • Kentucky
  • Missouri
  • New York
  • North Carolina
  • Oklahoma
  • Pennsylvania
  • Tennessee

Even though Florida is not one of the states with the highest number of Heartland virus cases, the Lone Star tick is present locally and can still pose a risk. Residents should remain vigilant and take precautions when spending time outdoors.

Which States See the Most Cases of Alpha-gal Syndrome Ticks?

Alpha-gal syndrome is a severe allergy triggered by Lone Star tick bites. People bitten by ticks carrying the alpha-gal molecule can develop severe reactions to red meat, and reports of the condition are increasing as tick populations expand.

In certain areas, the number of reported or suspected alpha-gal cases is especially high, signaling a growing public health concern. Protective measures and awareness are critical as exposure risk continues to rise. The states with the most reported alpha-gal syndrome cases are:

  • Virginia
  • Arkansas
  • Delaware
  • Illinois
  • Indiana
  • Kansas
  • Kentucky
  • Maryland
  • Missouri
  • Mississippi
  • North Carolina
  • Oklahoma
  • Tennessee

Although Florida is not a hotspot for alpha-gal syndrome, Lone Star ticks are found here and can still pose a threat. Practicing preventive measures outdoors is important to reduce the chance of developing the syndrome.

Which States Have the Fewest Ticks?

Areas with relatively few ticks and low numbers of tick-borne illnesses tend to have dry conditions, limited forested regions, or geographical isolation that makes tick populations smaller. These factors help reduce tick encounters.

However, it’s important to remember that ticks exist in every state. Even states with low numbers of ticks can have occasional sightings. The top 10 U.S. states with the fewest ticks are:

  • Hawaii
  • Alaska
  • Arizona
  • Colorado
  • Idaho
  • Montana
  • Nevada
  • North Dakota
  • Utah
  • Wyoming

Ticks capable of transmitting disease may still be present in these locations, especially in forested or foothill environments. It’s always important to be vigilant, perform tick checks after being outdoors, and watch for signs of illness following a bite.

Why Are Tick-Borne Illnesses a Concern in Florida?

Ticks are a serious concern in Florida due to several environmental and ecological factors. Their presence here increases the risk of tick-borne illnesses for both residents and pets. Here are the key factors that make ticks particularly hazardous in Florida:

  • Year-Round Warm and Humid Climate: Florida’s consistently warm temperatures and high humidity create ideal conditions for ticks to survive, reproduce, and remain active throughout the year.
  • Diverse Tick Species: Florida is home to multiple species of ticks, including the Lone Star tick, American dog tick, and deer tick, each capable of carrying different diseases.
  • Abundant Wildlife and Vegetation: Dense forests, grassy areas, and abundant wildlife such as deer, raccoons, and rodents provide ideal hosts and habitats for ticks, increasing the likelihood of human exposure.

Ticks are a serious risk in Florida, so vigilance is key. Always examine yourself, your kids, and your pets for ticks after outdoor activities, especially when exploring wooded or grassy areas during the summer months. The following tick species are widespread in Florida:

  • Deer Tick: One of the most common and potentially dangerous ticks. It is known to transmit Lyme disease, Anaplasmosis, Babesiosis, and other illnesses.
  • Lone Star Tick: Originally native to the South, this tick is expanding its range rapidly. It can transmit Alpha-gal Syndrome (a red meat allergy), Ehrlichiosis, Southern Tick-Associated Rash Illness (STARI), Tularemia, Heartland Virus, and more.
  • American Dog Tick: A significant carrier of Rocky Mountain Spotted Fever (RMSF) and Tularemia, making it a serious concern for human and animal health.

Arrow Environmental Services Can Shield Your Property from Ticks

Ticks pose a serious threat across the United States, and in Florida, both tick activity and tick-borne illnesses are particularly high. You can lower your risk by keeping your yard free of debris that attracts ticks and by contacting our tick control experts to establish a tick-free perimeter around your property.

For more than 68 years, Arrow Environmental Services has been the trusted choice for Florida families seeking protection from ticks. We are committed to keeping your home and yard safe, and you can rely on us to provide the same expert service for you.

Protect your loved ones and property from tick threats. Contact Arrow Environmental Services now for a complimentary estimate.

What States Have the Highest Tick Activity Serving Central, West Central and Southwest Florida?

Altamonte | Cape Coral | Lakeland

Naples | Sarasota | Tampa