RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4334 locations in the last 30 days (4514 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

58,468 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/25/20255147 W WELLINGTON AVEBelmont Cragin31Completed6 daysMobile DeviceCity 311
7/6/20265147 W ST PAUL AVEAustin37Completed8 daysInternetCity 311
4/14/20265147 W ST PAUL AVEAustin37Completed2 daysInternetCity 311
8/21/20255147 W EDDY STPortage Park31Completed12 daysPhone CallCity 311
10/2/20265147 W DIVISION STAustin37Completed14 daysAlderman's OfficeCity 311
9/29/20265147 W CULLOM AVEPortage Park45Completed15 daysMobile DeviceCity 311
9/9/20255147 S WABASH AVEWashington Park3Completed9 daysPhone CallCity 311
10/28/20255147 S NARRAGANSETT AVEGarfield Ridge23Completed2 daysMobile DeviceCity 311
11/24/20255147 S MONITOR AVEGarfield Ridge23Completed7 daysPhone CallCity 311
7/7/20265147 S MELVINA AVEGarfield Ridge23Completed7 daysPhone CallCity 311
3/10/20265147 S LAWLER AVEGarfield Ridge23Completed2 daysInternetCity 311
9/15/20265147 S LAWLER AVEGarfield Ridge23Completed9 daysInternetCity 311
10/4/20255146 W WARWICK AVEPortage Park30Completed10 daysInternetCity 311
6/16/20265146 W MELROSE STPortage Park31Completed2 daysPhone CallCity 311
8/24/20265146 W MELROSE STPortage Park31Completed10 daysPhone CallCity 311
9/16/20265146 W HUTCHINSON STPortage Park45Completed15 daysMobile DeviceCity 311
8/17/20255146 W GRAND AVEBelmont Cragin36Completed8 daysMobile DeviceCity 311
5/19/20265146 W CULLOM AVEPortage Park45Completed2 daysPhone CallCity 311
4/13/20265146 W CULLOM AVEPortage Park45Completed1 dayAlderman's OfficeCity 311
7/29/20255146 W BLOOMINGDALE AVEAustin37Completed10 daysAlderman's OfficeCity 311
3/21/20265146 W AGATITE AVEPortage Park45Completed1 dayInternetCity 311
8/30/20255146 S RUTHERFORD AVEGarfield Ridge23Completed13 daysInternetCity 311
9/14/20265146 S LINDER AVEGarfield Ridge23Completed10 daysMobile DeviceCity 311
7/29/20255146 S KENWOOD AVEHyde Park5Completed6 daysMobile DeviceCity 311
11/20/20255146 S HONORE STNew City16Completed1 dayMobile DeviceCity 311
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