RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4355 locations in the last 30 days (4536 reports) · Last sighting yesterday

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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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/17/20252708 S QUINN STBridgeport11Completed7 daysPhone CallCity 311
7/11/20262708 W 24TH PLSouth Lawndale24Completed6 daysMobile DeviceCity 311
8/30/20262708 W 24TH PLSouth Lawndale24Completed15 daysMobile DeviceCity 311
7/18/20262708 W 25TH STSouth Lawndale24Completed9 daysInternetCity 311
5/8/20262708 W 47TH STBrighton Park12Completed4 daysMobile DeviceCity 311
7/21/20262708 W ARMITAGE AVELogan Square1Completed10 daysInternetCity 311
3/5/20262708 W ARMITAGE AVELogan Square1Completed1 dayInternetCity 311
8/15/20252708 W ARMITAGE AVELogan Square1Completed7 daysInternetCity 311
10/21/20262708 W ARMITAGE AVELogan Square1Open—InternetCity 311
8/8/20252708 W BALMORAL AVELincoln Square40Completed7 daysAlderman's OfficeCity 311
8/21/20252708 W CHASE AVEWest Ridge50Completed7 daysAlderman's OfficeCity 311
8/10/20262708 W CORTEZ STWest Town36Completed10 daysMobile DeviceCity 311
9/29/20252708 W CORTLAND STLogan Square1Completed8 daysPhone CallCity 311
7/1/20262708 W CORTLAND STLogan Square1Completed7 daysInternetCity 311
7/24/20252708 W GREENLEAF AVEWest Ridge50Completed11 daysInternetCity 311
9/24/20252708 W JACKSON BLVDEast Garfield Park27Completed6 daysPhone CallCity 311
5/7/20262709 N DRAKE AVELogan Square35Completed4 daysInternetCity 311
10/12/20252709 N MONT CLARE AVEMontclare29Completed5 daysMobile DeviceCity 311
7/26/20262709 S KOSTNER AVESouth Lawndale22Completed4 daysMobile DeviceCity 311
5/7/20262709 W 24TH STSouth Lawndale24Completed1 dayPhone CallCity 311
6/14/20262709 W ADAMS STEast Garfield Park27Completed4 daysPhone CallCity 311
9/19/20262709 W ADAMS STEast Garfield Park27Completed12 daysPhone CallCity 311
7/30/20262709 W ADAMS STEast Garfield Park27Completed12 daysPhone CallCity 311
5/20/20262709 W AUGUSTA BLVDWest Town36Completed6 daysMobile DeviceCity 311
9/7/20252709 W BRYN MAWR AVELincoln Square40Completed11 daysMobile DeviceCity 311
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