RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4430 locations in the last 30 days (4587 reports) · Last sighting 6 hours ago

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What am I looking at?

Each circle is a Chicago neighborhood. The number is its report count — click one to zoom in and see individual sightings there.

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Colors are relative to what’s currently on screen, so they adjust as you switch time ranges.

Zoomed into a neighborhood or zip? Same colors group nearby reports, and a bright dot means that exact spot’s been reported more than once.

Why Chicago keeps score on its rats

Chicago has topped national rankings of the rattiest U.S. cities for over a decade running — a reputation the city itself takes seriously enough to run one of the country’s most active 311 rodent-complaint programs. Every baiting request, burrow report, and complaint filed with the city becomes a public record. RatCity turns that record, plus reports from people who live here, into a map you can actually use: is this block bad? Is it getting worse? Which neighborhood is winning (or losing) the fight this month?

What’s actually on the map

Most of the data is Chicago’s own — every “Rodent Baiting/Rat Complaint” filed through 311, pulled in automatically once a day so the map never goes stale. Layered on top are sightings reported directly by visitors, matched to the same neighborhood and zip-code boundaries the city uses, so a resident’s report and an official 311 complaint carry equal weight on the map.

Reading the map

Circles are sized and colored by how many reports a neighborhood has racked up — blue is quiet, red means trouble. The Day / Week / 30 Days / Year toggle up top changes the window, so you can see whether a neighborhood’s rat problem is a one-week blip or a year-long trend. Whoever’s in the lead gets crowned the neighborhood Rat King in the sidebar, a title that changes hands as new reports come in.

Noticed a rat that isn’t on the map yet? Use “Report a sighting” above — it takes under a minute and goes live as soon as it’s reviewed. Curious about where the data actually comes from or how reports are moderated? See the About page for the full breakdown.

Want more? The blog has weekly trend recaps and guides on Chicago’s rat problem and how to keep it out of your home.

Browse every sighting

57,080 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/15/20255453 W BERENICE AVEPortage Park30Completed8 daysMobile DeviceCity 311
10/15/20251320 W 18TH STLower West Side25Completed7 daysInternetCity 311
10/15/20251031 W CULLERTON STLower West Side25Completed7 daysInternetCity 311
10/15/20251213 W RACE AVEWest Town27Completed6 daysInternetCity 311
10/15/20251037 W CULLERTON STLower West Side25Completed7 daysInternetCity 311
10/15/20251029 W CULLERTON STLower West Side25Completed7 daysInternetCity 311
10/15/20256058 W WAVELAND AVEDunning38Completed6 daysInternetCity 311
10/15/20252420 N KEELER AVEHermosa31Completed6 daysPhone CallCity 311
10/16/2025900 N DAMEN AVEWest Town36Completed1 dayPhone CallCity 311
10/16/20252339 S DRAKE AVESouth Lawndale22Completed4 daysPhone CallCity 311
10/16/202510515 S GREEN STWashington Heights21Completed1 dayPhone CallCity 311
10/16/202512237 S LOWE AVEWest Pullman21Completed1 dayPhone CallCity 311
10/16/202510615 S SANGAMON STWashington Heights21Completed1 dayPhone CallCity 311
10/16/20253617 W LEXINGTON STEast Garfield Park24Completed1 dayPhone CallCity 311
10/16/20251852 S SPRINGFIELD AVENorth Lawndale24Completed1 dayPhone CallCity 311
10/16/2025540 W BELDEN AVELincoln Park43Completed7 daysPhone CallCity 311
10/16/20251229 S AVERS AVENorth Lawndale24Completed1 dayPhone CallCity 311
10/16/20254002 W WAVELAND AVEIrving Park30Completed7 daysPhone CallCity 311
10/16/20252840 N MULLIGAN AVEBelmont Cragin30Completed8 daysPhone CallCity 311
10/16/20251308 N RIDGEWAY AVEHumboldt Park36Completed1 dayPhone CallCity 311
10/16/20252726 W CORTEZ STWest Town36Completed1 dayPhone CallCity 311
10/16/20256550 N SEELEY AVEWest Ridge40Completed1 dayPhone CallCity 311
10/16/20252524 W FARRAGUT AVELincoln Square40Completed1 dayPhone CallCity 311
10/16/20254740 N LINCOLN AVELincoln Square47Completed4 daysMobile DeviceCity 311
10/16/2025957 N SPRINGFIELD AVEHumboldt Park37Completed6 daysPhone CallCity 311
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