How Big Can Sewer Rats Get

Sewer rats like all other rodents are constantly growing throughout their lives and can reach impressive sizes. The biggest recorded sewer rat was 24 inches long but they can grow to be even larger. Rats have been known to get into homes through toilets so if you have a rat problem in your home it’s important to call a professional to get rid of them.

How big can sewer rats get?

Up to 18 inches long.

What do sewer rats eat?

They are scavengers and will eat just about anything but prefer fresh fruits and vegetables meats and fish.

Where do sewer rats live?


In sewers of course! But they also live in abandoned buildings basements and other areas that are dark damp and cool.

Are sewer rats dangerous?

Yes they can be.

They can carry and transmit diseases such as typhus bubonic plague and salmonellosis.

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How can you tell if you have a sewer rat problem?

Look for signs of gnawing burrowing or nesting; rat droppings; or grease marks along walls or runways.

How do you get rid of sewer rats?

Trapping and baiting are the most effective methods.

What is the best bait to use for trapping sewer rats?

Peanut butter bacon and other high-fat high-protein foods work well.

What is the best trap to use for sewer rats?

A snap trap is usually the most effective.

How do you keep sewer rats away?

By eliminating their food and shelter sources and sealing up any openings into your home or business.

What is the lifespan of a sewer rat?

One to two years.

How fast can a sewer rat reproduce?

A female can have up to six litters of up to eight young each year.

How many young do sewer rats have?

Up to eight.

What is the gestation period for a sewer rat?

About 21 days.

When do sewer rats reach sexual maturity?

At about two months old.

How often do sewer rats have litters?

Up to six times per year.

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