The house mouse (Mus musculus) is the dominant small rodent in Polk County, occurring in both residential and commercial settings across all submarkets. House mice are 3–4″ body + 3–4″ tail, gray to brown, with large ears and small dark eyes. They breed continuously in Polk County's year-round warm climate — a single pair can produce 35–60 offspring per year.
House mouse vs. juvenile rat
Common confusion: young rats look like adult mice. Differences: head size — adult mice have proportionally larger heads relative to body; juvenile rats have smaller heads with chunkier bodies. Feet — juvenile rats have proportionally larger hind feet (preview of adult size). Droppings — mouse droppings 1/8–1/4″ with pointed ends, rat droppings 1/2–3/4″ with blunt ends.
Where mice enter Polk County homes
- Gaps around plumbing under sinks (kitchen, bathroom, utility).
- Dryer vent exit if damper is missing or broken.
- Garage door bottom seal gaps.
- HVAC line penetrations.
- Weep holes in masonry construction.
- Gaps under exterior doors.
- Through garage into attic via cross-bracing.
Related Lakeland Exterminators pages
- Rodent Control in Lakeland — service page
- Rodent Exclusion in Lakeland — seal-out
- Roof Rat in Polk County — other rodent species
Frequently asked questions
How do I know if it’s mice or rats?
Mouse droppings are 1/8 to 1/4 inch with pointed ends. Rat droppings are 1/2 to 3/4 inch with blunt ends. Mouse adults are 3 to 4 inches body length; rats are 6 to 10 inches.
Can I catch mice with retail snap traps?
Yes. Snap traps work well for mice. Set in pairs perpendicular to walls along observed runways.
Should I use poison or traps for mice?
Traps for interior; bait stations for exterior. Interior poison causes dead mice in walls and odor problems.
How fast can mice breed?
A single pair can produce 35 to 60 offspring per year in Polk County’s year-round warm climate.
How do I find a Polk County mouse operator?
Call the number on this page. Operators routed through this line are FDACS-licensed.
Call (XXX) XXX-XXXX — routed to FDACS-licensed pest control operators serving Polk County, FL.