Columbus Is No. 15 for Rats: What Homeowners Can Do

What does the Columbus rat ranking actually measure?

Orkin's rattiest cities ranking orders cities by the number of new residential rodent treatments in a 12 month window. A jump of six places says more households called for help than the year before. It does not say how many rats live in the city or how bad any one neighborhood is.

It also reflects behavior. Cooler weather pushes rodents toward buildings, and a city with many rentals, older houses and restaurants will produce a steady stream of calls. Treat the number as a reason to check your own property, not as a verdict on where you live.

Why do rats thrive in Columbus neighborhoods?

Rats need three things, and Columbus offers plenty of each. Food shows up in overfilled dumpsters, restaurant waste, pet bowls and spilled seed. Shelter comes from burrows along foundations, woodpiles and dense plantings. Routes come from alleys, fence lines and storm drains that connect yards across a block.

Housing matters too. About 56% of Columbus homes are rented (ACS 2019-23), and the median home was built around 1980. Shared trash areas and settling foundations leave openings that no single tenant controls. When one yard feeds rats, the burrows spread to its neighbors.

On the east side, where we are based, that mix runs from apartment courts to older single-family streets. Rats do not care about property lines, so a clean yard still benefits when the neighbors act too.

How fast do rats multiply?

Faster than most people expect. UC IPM, the University of California's pest program, says the average female Norway rat has 4 to 6 litters a year and can wean 20 or more young in that time. One missed burrow in the fall can mean a crowded yard by spring.

What can you do around your home this fall?

Rats are cautious animals. They notice change, and they settle where food is reliable. These steps remove the reliable part:

1. Lock down the trashUse cans with tight lids, keep bags off the ground and break down boxes so they do not sit beside the bin.
2. Feed pets indoorsPick up bowls at night and store dry food in a lidded container, not an open bag in the garage.
3. Clean up seed, fruit and compostSpilled seed under feeders and fallen fruit are an open invitation. Keep compost in a closed bin.
4. Trim coverMove woodpiles off the ground and away from the house, and thin ivy or dense plantings that touch a wall.
5. Walk the foundationLook for burrow holes two to three inches wide, smooth dirt at the opening and gnaw marks on vents or the garage door.
6. Seal what you findClose gaps around pipes and door edges with hardware cloth, mesh or mortar. Rats gnaw soft materials.

Two more habits from UC IPM help. Prune plants so they sit 2 feet or more from each other and from the house, and collect garbage and garden debris often rather than weekly. Rats prefer to travel along cover, and open ground makes them nervous.

Do not fill in a burrow before someone checks it. A rat that loses a burrow digs another one nearby, sometimes closer to the house. Our post on rodent-proofing a garage and basement covers the sealing in more detail.

How do you tell an active burrow from an old one?

Look at the opening. University extension guidance describes active Norway rat holes as two to three inches wide, smooth from repeated use and clear of debris. A hole choked with leaves or cobwebs has probably not been used lately. Fresh dirt kicked out at the mouth is a sign of current digging.

Where does rat bait fit, and what are the risks?

Rat bait is poison, and it carries real risks that you should weigh before using it. The first is direct: a dog or cat that finds bait can eat it. The second is secondary. A pet that eats a rat that has taken bait can be poisoned too, and so can any animal that scavenges the carcass.

Bait goes in tamper-resistant stations, set according to the product's label directions. Never scatter loose bait in a yard, garage or crawlspace. A station reduces access but does not remove the risk, so we ask about pets and children before we place anything and plan around them.

If you think a pet has eaten bait or a poisoned rodent, call your veterinarian or an animal poison control line right away and bring the product label. Do not wait for symptoms. Rodent bait is also a pesticide, so Ohio requires any company applying it for hire to hold an ODA Pesticide Business License.

Traps and sealing carry less of this concern, which is one reason we use them alongside bait or in place of it. Our rat control page explains how we combine the three.

Traps or bait: which works better for rats?

UC IPM calls snap traps the most effective and economical choice for rats, and it advises placing them close to walls, behind objects and in dark corners, about 10 to 20 feet apart. A heavy infestation can need a dozen or more. Trap shyness is real, so the same source suggests baiting traps without setting them until the food is being taken.

Whichever you choose, keep it out of reach of pets and children. EPA label rules for consumer rodent products call for tamper-resistant stations for outdoor, above-ground use where children or pets may be present. That is a requirement for the product, not a promise that nothing can go wrong.

Rat signs: outdoors versus indoors

Not sure it is a rat at all? Mice leave smaller signs and behave differently, and our guide on how to tell a mouse from a rat walks through the differences.