RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4227 locations in the last 30 days (4380 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/22/20255830 W ROSCOE STPortage Park30Completed7 daysInternetCity 311
4/29/20265830 W ROSCOE STPortage Park30Completed5 daysPhone CallCity 311
8/21/20265830 W ROSCOE STPortage Park30Completed12 daysInternetCity 311
7/29/20255830 W ROSCOE STPortage Park30Completed9 daysInternetCity 311
9/21/20265830 W ROSCOE STPortage Park30Completed15 daysInternetCity 311
5/18/20265830 W NEWPORT AVEPortage Park30Completed1 dayPhone CallCity 311
9/29/20265830 W LAWRENCE AVEPortage Park45Completed15 daysMobile DeviceCity 311
5/22/20265830 W ERIE STAustin29Completed6 daysPhone CallCity 311
8/19/20255830 W CORNELIA AVEPortage Park30Completed7 daysMobile DeviceCity 311
8/11/20265830 S MOODY AVEGarfield Ridge13Completed13 daysPhone CallCity 311
6/29/20265830 S MAYFIELD AVEGarfield Ridge13Completed3 daysMobile DeviceCity 311
6/15/20265830 N WHIPPLE STWest Ridge50Completed8 daysMobile DeviceCity 311
7/11/20265830 N WHIPPLE STWest Ridge50Completed3 daysMobile DeviceCity 311
7/5/20265830 N WHIPPLE STWest Ridge50Completed5 daysMobile DeviceCity 311
10/16/20255830 N OCONTO AVENorwood Park41Completed7 daysInternetCity 311
7/14/20265830 N KENMORE AVEEdgewater48Completed9 daysInternetCity 311
9/20/20255830 N KENMORE AVEEdgewater48Completed5 daysPhone CallCity 311
7/2/20265829 W NEWPORT AVEPortage Park30Completed8 daysPhone CallCity 311
10/9/20265829 W LAWRENCE AVEPortage Park45Open—Phone CallCity 311
8/3/20255829 W AINSLIE STJefferson Park45Completed10 daysInternetCity 311
7/21/20265829 S WABASH AVEWashington Park20Completed8 daysPhone CallCity 311
2/23/20265829 S FAIRFIELD AVEGage Park15Completed1 dayMobile DeviceCity 311
4/28/20265829 S ARCHER AVEGarfield Ridge23Completed3 daysMobile DeviceCity 311
8/11/20255829 N CENTRAL PARK AVENorth Park39Completed1 dayPhone CallCity 311
4/28/20265828 W SUPERIOR STAustin29Completed2 daysPhone CallCity 311
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