11 Worst Places in the World with Mosquitoes

Traveling can be fun but dealing with mosquitoes can make the experience incredibly annoying. If you want to avoid this annoyance and the potential risks that mosquitoes come with, it helps to understand which locations have the worst mosquitoes in the world.

This article will take a look at various locations across the globe, both countries and cities, so that you can be prepared when visiting these locations.

We’ve rounded up what we found to be some of the worst places in the world with mosquitoes. And as a fun fact, Stuart the founder of “LivingtheOutdoorLife”, lives in Ontario, Canada, and can definitely confirm the first two picks!

Many swarms of mosquitoes in the back light

Related Reading: Is There Anywhere in the World That Has No Mosquitoes?

1. Parkhill, Ontario

This is a beautiful small town that is located in Southwestern Ontario. Back in 2011, this town became known for more than just its beauty. It also became known as Skeeterville, due to an invasion of mosquitoes that seemingly took over this town.

It was reported by residents that they noticed the mosquitoes in “thick clouds” of swarms, which hurt this town’s reputation. These mosquitoes would attack during the day and night, which made it even more annoying for residents and visitors alike.

2. Algonquin Park, Ontario

Located right in the middle of the northern and southern part of Ontario, this park also has a problem with mosquitoes. Due to its proximity to the water and the vastness of this park, this is a haven for mosquitoes. As visitors walk around this gorgeous park, they are not safe from the mosquitoes that plague the area.

3. Brazil

It is estimated that Brazil is among the worst places in the world for mosquitoes because they have among the highest number of different mosquito species. This is particularly a problem around the Amazon region, which has mosquitoes that frequently cause yellow fever.

There are also mosquitoes like the Aedes variety, which can thrive in urban areas of the country.

4. Indonesia

There are also a lot of mosquito species in Indonesia, especially varieties that you need to be concerned with. The mosquitoes here can spread malaria and dengue fever, both of which are a major concern. Due to the tropical nature of this location, it makes for a perfect breeding ground for mosquitoes, so you need to be very careful when you are coming to this country to keep you safe.

5. Africa

When it comes to mosquitoes, the entire continent is a horrible place when it comes to mosquitoes. This is widespread issue in the continent, which is incredibly hard to control. This is especially a problem when it comes to the rural parts of the continent, as well as areas that have a lot of pollution or poor drainage.

It is estimated that 90% of the world’s deaths from malaria occur in Africa, particularly in areas south of the Sahara. It is important that if you are traveling anywhere in this continent that you get all of your vaccines and invest in products that will protect you from mosquitoes.

6. Thailand

The country of Thailand can also be a nightmare when it comes to mosquitoes. Mosquitoes are a prevalent constant problem throughout the year in Thailand. However, the mosquito situation tends to peak as the rainy season hits between May and September.

There are several risks associated with the mosquitoes here including dengue fever, malaria, lymphatic filariasis, and Japanese encephalitis. This is a concern whether you are visiting a rural area or an urban one.

7. Malaysia

Malaysia is like many other tropical countries in the southeastern part of Asia, which means they also have a major problem as far as the mosquito population in these areas. This area is hot and humid throughout the year, which is why this area also has a lot of mosquito borne illnesses that you have to be careful about in the area. Common issues here include dengue fever and yellow fever.

Closeup of Mosquitoes on a leaf with blurry background

8. United States

The United States is home to several places that are terrible for mosquitoes. There are places all over the country that can be particularly problematic when it comes to mosquitos. Some of the areas that you should really watch out include Atlanta, Charlotte, New York, Memphis, and Los Angeles.

The mosquitoes in these areas may not be as dangerous as in other parts of the country, but you should still be concerned about the potential illnesses that they carry.

9. Mexico

Mosquitoes are common in this country from the season that runs between April and November. The southernmost parts of the country are where you will most notice mosquitoes, including Yucatan, Tabasco, and Chiapas.

If you are planning a trip to Mexico, you should plan your trip for outside of this time period to make sure that you are as safe as possible during your trip.

10. Central America

You will most likely come across mosquitoes in the coastal areas of Central America, especially as you are near the Caribbean area of Costa Rica. The good news is that outside of these coastal areas, mosquitoes are rare, primarily because of the low temperatures that these areas experience.

Some areas that rarely experience issues with mosquitoes include Monteverde, Central Valley, and the various locations of Costa Rica’s highlands.

11. The Caribbean

The Caribbean is a dream vacation for many people, but the issue is that this is also home to a mosquito problem. Not only are mosquitoes prevalent in this area, but they also tend to carry a virus known as chikungunya.

This disease can cause severe joint pain, which can often be disabling. This can be particularly problematic for residents of the United States, who come home with the virus and have difficulties getting diagnosed properly with this condition.

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Last update on 2023-01-14 / Affiliate links / Images from Amazon Product Advertising API

Related Reading: Are Mosquitoes Bad in Alaska? [FIND OUT!]


Mosquitoes are not just annoying, but they also have a variety of different dangers that they can bring in the form of serious diseases. It’s important that if you are going to any of the areas that are mentioned on this list that you make sure that you take all of the necessary precautions.

There are different products like mosquito repellant and mosquito nets to keep you protected. It’s also a good idea to get vaccinated before going to these areas.