RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4545 locations in the last 30 days (4699 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.

32080fewer → more

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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/5/20251232 W GEORGE STLake View32Completed13 daysMobile DeviceCity 311
8/5/20264909 N CALIFORNIA AVELincoln Square40Completed13 daysInternetCity 311
9/11/20268106 S KINGSTON AVESouth Chicago7Completed13 daysPhone CallCity 311
8/29/20257301 W NORTH SHORE AVEEdison Park41Completed13 daysAlderman's OfficeCity 311
8/15/20264320 N MOODY AVEPortage Park38Completed13 daysPhone CallCity 311
9/3/20251521 W WALTON STWest Town1Completed13 daysMobile DeviceCity 311
8/14/20261416 W OLIVE AVEEdgewater48Completed13 daysMobile DeviceCity 311
9/4/20263525 N NEVA AVEDunning38Completed13 daysInternetCity 311
7/31/20255200 W WAVELAND AVEPortage Park30Completed13 daysAlderman's OfficeCity 311
9/2/20256600 W 64TH PLClearing13Completed13 daysInternetCity 311
9/1/20268005 S CAMPBELL AVEAshburn18Completed13 daysInternetCity 311
8/13/20252814 N KILDARE AVEHermosa31Completed13 daysAlderman's OfficeCity 311
8/26/20254854 N AVERS AVEAlbany Park39Completed13 daysPhone CallCity 311
7/29/20261636 N MOZART STWest Town26Completed13 daysInternetCity 311
8/12/20265535 W EDDY STPortage Park30Completed13 daysInternetCity 311
9/1/20268014 S CAMPBELL AVEAshburn18Completed13 daysInternetCity 311
8/18/20262338 W RICE STWest Town36Completed13 daysInternetCity 311
8/27/20252451 W CARMEN AVELincoln Square40Completed13 daysPhone CallCity 311
8/20/20264024 W WELLINGTON AVEAvondale31Completed13 daysMobile DeviceCity 311
8/29/20253500 N LARAMIE AVEPortage Park31Completed13 daysPhone CallCity 311
9/10/2025538 E 90TH PLChatham6Completed13 daysPhone CallCity 311
8/7/20265800 W HENDERSON STPortage Park30Completed13 daysAlderman's OfficeCity 311
9/5/20254117 W NELSON STAvondale31Completed13 daysPhone CallCity 311
8/20/20264447 N WOLCOTT AVELincoln Square47Completed13 daysMobile DeviceCity 311
8/21/20252144 N HUDSON AVELincoln Park43Completed13 daysAlderman's OfficeCity 311
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