RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4456 locations in the last 30 days (4621 reports) · Last sighting 11 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.

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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/4/20254218 W ARMITAGE AVEHermosa35Completed11 daysMobile DeviceCity 311
10/4/20254305 N MASON AVEPortage Park38Completed12 daysPhone CallCity 311
10/4/20255124 S UNIVERSITY AVEHyde Park5Completed4 daysInternetCity 311
10/4/20255126 S UNIVERSITY AVEHyde Park5Completed4 daysInternetCity 311
10/4/20255508 W FARRAGUT AVEJefferson Park45Completed12 daysPhone CallCity 311
10/4/20257325 S EMERALD AVEEnglewood6Completed4 daysPhone CallCity 311
10/4/20255732 S MCVICKER AVEGarfield Ridge13Completed11 daysInternetCity 311
10/4/20255506 N LUNA AVEJefferson Park45Completed12 daysInternetCity 311
10/4/20252638 W CRYSTAL STWest Town26Completed11 daysPhone CallCity 311
10/4/20256243 W FLETCHER STBelmont Cragin30Completed5 daysInternetCity 311
10/4/20253920 N PINE GROVE AVELake View46Completed3 daysInternetCity 311
10/4/20254832 W EDDY STPortage Park31Completed12 daysInternetCity 311
10/4/2025121 W CHESTNUT STNear North Side2Completed6 daysInternetCity 311
10/4/20251120 W ARMITAGE AVELincoln Park43Completed6 daysInternetCity 311
10/4/20255118 W HUTCHINSON STPortage Park45Completed12 daysInternetCity 311
10/4/20255702 W WILSON AVEPortage Park38Completed12 daysInternetCity 311
10/4/20255146 W WARWICK AVEPortage Park30Completed10 daysInternetCity 311
10/4/2025400 S GREEN STNear West Side34Completed2 daysMobile DeviceCity 311
10/4/20251607 W LE MOYNE STWest Town1Completed6 daysInternetCity 311
10/4/20252533 W FARRAGUT AVELincoln Square40Completed10 daysInternetCity 311
10/4/20252113 N CLIFTON AVELincoln Park43Completed6 daysMobile DeviceCity 311
10/4/20253032 S PRINCETON AVEArmour Square11Completed5 daysPhone CallCity 311
10/4/20251866 N SHEFFIELD AVELincoln Park43Completed6 daysMobile DeviceCity 311
10/4/20251810 N MOZART STLogan Square26Completed4 daysMobile DeviceCity 311
10/4/20252378 N ELSTON AVELogan Square32Completed10 daysInternetCity 311
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