Pest Control in Minneapolis-St. Paul, Minnesota

Two central cities, one metro, very different buildings

The 2020 Census counted 429,954 people in Minneapolis and 311,527 in St. Paul, and the Metropolitan Council reported that the seven-county Twin Cities region reached 3.16 million residents that year. The Met Council also noted that Minneapolis and Saint Paul, after slight population losses in the 2000s, accounted for nearly a quarter of the region’s growth during the 2010s. Building type changes the pest picture. In a detached suburban house, an infestation usually belongs to one household. In a walk-up on Lyndale or a high-rise near the Mississippi, cockroaches and bed bugs travel through shared walls, trash rooms and laundry areas, so one unit’s problem is frequently the whole building’s problem.

That is why this page reads differently from the suburban city pages linked below. Out in Lakeville or Chaska the conversation is mostly about mosquitoes, carpenter ants and fall mice. Inside the two core cities the calls lean toward roaches in kitchens, bed bugs in bedrooms, and rodents moving between alleys, sewers and basements — plus the question of who pays for the fix.

Which cockroach is in a Twin Cities kitchen

University of Minnesota Extension lists four cockroaches that infest Minnesota homes: the German, brown-banded, American and Oriental. Telling them apart matters, because each points to a different source:

• German cockroach — Extension calls it the most common indoor cockroach in the state. It favors warm, humid spots around 70–75°F, which is why Extension suggests placing monitoring traps in cupboards and around refrigerators, stoves and sinks.
• Brown-banded cockroach — prefers even warmer temperatures, above 80°F, and hides high up: behind pictures and clocks, and on appliances such as televisions and refrigerators. Extension notes that it and the German cockroach are rarely found together.
• Oriental cockroach — often called a water bug. It likes dark, damp basements, crawl spaces and sewers, can tolerate cool conditions and has been found outdoors in freezing weather.
• American cockroach — the largest species to infest Minnesota buildings. Extension says it turns up occasionally in homes but is more common in restaurants, grocery stores and bakeries, mostly in basements and ground floors.

Extension also flags corrugated cardboard as a common way cockroaches move into a home, which matters for anyone moving between apartments. Its advice is to examine boxes, bags and luggage when they come in, and to watch for the dark, bean-sized egg cases after a move.

Who pays to exterminate a Minneapolis or St. Paul rental

Minnesota law answers the basic question. Minnesota Statutes section 504B.161 lists, among a landlord’s duties, keeping the premises in reasonable repair “including… extermination of insects, rodents, vermin, or other pests,” with an exception when the tenant’s own willful, malicious or irresponsible conduct caused the problem.

Minneapolis adds its own rule. Section 244.600 of the city’s housing maintenance code makes the owner of any dwelling with two or more units responsible for extermination on the premises, and it allows the city to order the work done by a licensed person when an infestation is widespread and severe. The Minneapolis Health Department states outright that bed bugs in a rental unit are a housing code violation. Code questions and complaints go through Minneapolis 311 at 612-673-3000.

St. Paul spells out a split. According to the city’s code enforcement guidance, the owner is generally responsible when two or more units are infested, when common areas are infested, or when the owner failed to keep the building sanitary; the occupant is responsible when only that one unit is infested. In severe cases, St. Paul can condemn a building or unit as unfit for habitation until the infestation is gone. Whoever ends up paying, the actual extermination is work for a company licensed by the Minnesota Department of Agriculture, and that is the kind of company Exterminator Dispatch routes calls to — for tenants, owners and property managers alike.

Bed bugs in the core cities

The Minneapolis Health Department describes bed bugs as wingless, reddish-brown insects about the size of an apple seed that can turn up in any home regardless of how clean it is. Its guidance is practical: do not bring furniture found on the street indoors, check secondhand items for stains, droppings and shed skins, and inspect hotel rooms before unpacking. It also warns residents not to use agricultural or garden pesticides indoors and to hire a pest control professional quickly, because a delay makes the job harder.

Before anyone treats, confirm what the insect actually is. University of Minnesota Extension reports that its researchers found 76 percent of samples submitted for bed bug identification were not bed bugs. Extension also notes that bat bugs, a close relative that lives in attics and eaves where bats roost, look almost identical, and that bite marks alone cannot confirm an infestation. A licensed inspector who finds and identifies a live specimen settles the question before money is spent.

Rats, mice and the first freeze

The Minneapolis Health Department’s rat guidance, written for hotels, motels and other lodging but useful for any building, says rats can squeeze through openings larger than half an inch, can swim through sewers and enter buildings through toilets or broken drain pipes, and quickly detect and avoid new objects placed in a familiar environment. Signs it lists include droppings about three-quarters of an inch long, gnawed doors and food packaging, rub marks along walls and burrows along foundations and under rubbish. It recommends sealing gaps larger than half an inch, keeping lids on disposal bins closed and trimming shrubbery.

In St. Paul, the city says Animal Control can respond to rat reports by testing rat holes and baiting sewer lines in the area — public-side work that does not remove rodents already inside a building.

Mice follow the calendar. University of Minnesota Extension notes that mouse activity picks up as fall approaches, with mice looking for shelter in garages, sheds and homes, and that any barrier must be airtight to keep them out. The National Weather Service office for the Twin Cities puts the normal first fall freeze between October 1 and 10, and the weeks around that date are when basement and kitchen sightings tend to begin.

A metro agency map: who handles what

Much of the confusion on pest calls comes from assuming a public agency will do private treatment. Here is how responsibilities break down across the metro:

• Minneapolis 311 (612-673-3000) — the city’s line for non-emergency questions and for reporting issues such as rental code violations.
• Minneapolis Health Department (612-673-2301) — publishes the city’s bed bug guidance for residents and its rodent guidance for hotels, motels and other lodging businesses.
• Saint Paul City Information and Complaint line (651-266-8989) — where St. Paul residents report rats and other vermin; code enforcement can issue orders on cockroaches.
• Metropolitan Mosquito Control District ((651) 645-9149) — created by the Minnesota Legislature in 1958. It now serves Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington counties — 189 cities and towns and more than 3 million residents, by its own count. It splits the metro into two priority zones, putting the most densely populated area first, and it does not spray private yards unless there is a threat of mosquito-borne disease.
• Minnesota Department of Agriculture — licenses the structural pest control companies and applicators that do the actual treatment work, and runs the public license lookup.

In short, the cities enforce codes and the mosquito district works wetlands and public health threats, but treatment inside a home or building is done by a private, state-licensed company. Connecting callers with one of those companies is the only role Exterminator Dispatch plays.

Boxelder bugs, lady beetles and the termite question

Every fall, sunny walls across both cities fill with boxelder bugs. University of Minnesota Extension explains that they are drawn to buildings with large southern or western exposure and to buildings that stand taller than their surroundings — a description that fits plenty of brick apartment blocks. Adults can fly several blocks and as far as two miles, they do not reproduce indoors, and once inside, the only practical control is physical removal, so sealing openings in late summer and early fall is the real fix. Extension groups lady beetles with boxelder bugs as fall invaders that are nuisances rather than structural threats.

Termites are the pest people most often ask about and least often have. Extension describes termites as very uncommon in Minnesota. When wood damage does appear in an older Twin Cities home, carpenter ants are the more likely cause, and a licensed inspector can distinguish the two.

ZIP codes served

Minneapolis ZIP codes routed through this page (St. Paul and the suburbs each have their own page in the list below):

Verifying that a Minneapolis-St. Paul exterminator is actually licensed

In Minnesota, structural pest control is licensed by the Minnesota Department of Agriculture. According to the department, a structural pest control applicator — anyone applying pesticides or using devices to control pests in, on or around structures for hire — must work for a licensed structural pest control company and may not apply pesticides commercially until holding a valid license. Applicators are first licensed as Journeymen and can apply to become a licensed Master after two years as a Journeyman. A licensed company must employ at least one licensed Master. Licenses expire December 31 each year and must be renewed, with recertification required.

Before any company starts work in your building, ask for the company name and the applicator’s name and check both on the MDA license lookup. For a building-wide cockroach or bed bug job in a multi-unit property, it is also reasonable to ask how the company plans to handle adjoining units, since treating a single apartment in a shared building often misses the source.