Will Cockroaches Live in An Empty House?

Cockroaches thrive on chaos.

They’re notoriously difficult to control, and they’re nearly impossible to exterminate completely. They’re also incredibly versatile, and they’ll eat almost anything.

However, they can only live for a maximum of two years. Once you kill one, you’ll likely find that another takes its place.

So, will cockroaches live in an empty house? Cockroaches are invertebrates, which means that they don’t have a backbone.

They have six legs, a pair of antennae, and three pairs of wings. Cockroaches feed on decaying organic matter such as feces and garbage, which makes them one of the most common pests in the world.

Cockroaches can survive without food for 30 days or more, depending on their species.

For example, German cockroaches can live for about 40 days without food, while American cockroaches can survive for 60 days or more without food.

Cockroaches can function normally when starved, but they won’t reproduce or grow.

So, if you’ve just had your cockroach problem taken care of, be sure to keep your home clean to avoid attracting a new one.

Will Cockroaches Live in An Empty House?

Cockroaches may survive for up to a year without eating, but they are unlikely to survive much longer unless they find other food sources or mate with other members of the species.

Because they are cold-blooded animals and cannot regulate their body temperature internally like mammals can, they can only survive outdoors if the weather is warm enough for them to remain active and move between shelter and food resources regularly.

They can only live outdoors in temperate climates where temperatures remain above freezing year-round.

Because they need water, they constantly seek it wherever they go and can drown if they cannot find any available sources or if they stay in a body of water for too long.

They are adaptive species, capable of surviving in unsanitary environments, including homes and other buildings where they can find food and shelter readily.

That is why getting rid of them can be so difficult and why most people must rely on professional pest control services to get rid of these pests for good rather than attempt to handle the problem on their own using DIY methods.

When food is scarce, insects and cold-blooded animals like reptiles and amphibians can go into a state of suspended animation called diapause in order to conserve energy and prevent starvation.

They save energy this way and go into a state of hibernation that allows them to survive periods where they cannot find enough food to eat until they eventually find some source of nourishment again.

What Do Roaches Eat?

Cockroaches are omnivorous, with varied diets that consist of both plant and animal matter.

They are common household pests that are known to feed on a wide range of foods, including grease, starch, protein, and sugar, found in everything from pet food to dead insects to garbage, and even the glue on book bindings.

Some species prefer carbohydrates and starches, while others prefer protein and fat.

They will also eat plants if they are available as a food source, although they tend to avoid eating plants if they can feed on their insect prey instead.

The Lifespan of The Cockroaches

A female German cockroach may lay up to about 20–40 eggs at a time and may live for about a year under normal conditions.

This species of cockroach undergoes a series of molting stages as they grow from nymphs into adults.

Male and female German cockroaches do not tend to live in the same environment.

A bigger cockroach that may reach up to about an inch in length will live for about two years, while a smaller species of roach may only live for a couple of months.

The female may deposit up to several egg cases at a time during their lifetime and lay them on various surfaces around the home, such as window sills, under appliances, inside walls, and other hidden areas.

It takes between 10 and 13 days for the eggs to hatch into nymphs, which mature over a period of several weeks.

Female American cockroaches can live for up to one year or more, while male American cockroaches only live for about six months on average.

The number of nymphal stages a cockroach goes through before becoming an adult is the main thing that determines how long it will live.

They might live longer if they make it through more nymphal stages and become adults in less time, usually about a year.

Adult cockroaches can die early if they can’t find food or if they get sick or hurt and can’t feed themselves or keep their body temperature stable.

Also Read: How Long Can Cockroaches Live Without Food?


In conclusion, cockroaches can live without food for one month if it’s warm outside and they have enough moisture to drink.

However, if it’s cold and dry outside, they can only survive a few weeks without food.