🐀 DC Rat Tracker

A mobile-friendly and more accurate remake of DC Health's rodent dashboard, built on Open Data.

Rodent activity in your area

Complaints reported in the last 30 days, ranked against every other area of the same kind, with a 13-week trend. A single member district (SMD) is the smallest — roughly your neighbourhood block group, and the one your elected commissioner covers.

Pick a Ward, ANC or SMD in Complaint trends above to see your area's last 30 days, its 13-week trend, and how it ranks.

Prefer to search by zip code?

Zip codes don't line up with political representation, so they can't tell you who to call — but they're easy to remember.

On the map

Every rodent 311 request reported in the past 90 days.

Report & learn

More information

Glossary

Definitions from DC Health's rodent dashboard.

Glossary (20 terms)
Anticoagulants
Highly toxic medications that prevent the blood from clotting, causing fatal internal bleeding. These can only be used by licensed pest management professionals to mitigate the risk of ingestion by other animals and children.
Bait station
A device that holds bait targeting rodents safely, protecting children, pets, and wildlife from tampering or ingestion.
Burrow
An underground hole or tunnel dug by a small animal for protection, shelter, and storage.
Droppings
Small, dark fecal pellets left by mice or rats, typically found near food sources, walls, or nesting areas, which indicate an infestation may be present.
Exclusion
Prevention of insects, flies, rodents, and wildlife from entering a building or area.
Grooming
A self-cleaning behavior of rodents.
Hotspot
Specific areas where rodent signs (such as droppings, gnaw marks, nesting material, or sightings) are concentrated.
Infestation
Presence of a growing population of rodents that establish nesting, feeding, or breeding activity.
Integrated Pest Management (IPM)
An approach to managing pests that relies on a combination of non-pesticide practices, exclusion, and targeted chemical treatments.
Non-target organism
Animals, such as pets or wildlife, that are not the intended target of a control measure.
Nonresidual Pesticide
A pesticide that does not kill beyond its initial application and will lose its toxicity within a few hours, typically used to flush pests out of difficult-to-reach areas.
Notice of Abatement
A formal document notifying property owners to stop a specific nuisance or to correct violations.
Notice of Infraction
A formal notification informing properties, individuals, or licensees that they have violated specific laws, regulations, or DC Municipal Code.
Perimeter Inspection
A detailed exterior evaluation of a structure to identify rodent entry points, burrows, and attractions.
Residual Pesticide
A pesticide that lasts several hours or more and is applied as a general, spot, or crevice treatment.
Rodent Activity
What we define as evidence or signs left behind by rodents, such as droppings, gnaw marks, or runways.
Rodenticide
A pesticide formulated to control mice and rats that must be professionally applied within secure stations to reduce targeted populations.
Sighting
Physically seeing a rodent inside or around a property, often indicating a larger hidden issue.
Tracking powder
A rodent control tool designed to stick to rodent fur and feet, which rodents ingest during grooming, while also providing paths to help locate burrows.
Vector
An organism that transmits infectious pathogens (such as viruses, bacteria, or parasites) to humans.