RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4536 locations in the last 30 days (4690 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20267538 S EVANS AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
9/2/20263924 N JANSSEN AVELake View46Completed1 dayPhone CallCity 311
9/2/20264044 W 55TH STWest Elsdon23Completed14 daysPhone CallCity 311
9/2/20264701 W HARRISON STAustin24Completed13 daysPhone CallCity 311
9/2/20266241 N OAKLEY AVEWest Ridge50Completed12 daysPhone CallCity 311
9/2/20262206 N LAMON AVEBelmont Cragin26Completed14 daysPhone CallCity 311
9/2/20268153 S PRAIRIE AVEChatham6Completed6 daysInternetCity 311
9/2/202610512 S INDIANA AVERoseland9Completed9 daysInternetCity 311
9/2/20269009 S RIDGELAND AVECalumet Heights8Completed1 dayInternetCity 311
9/2/20265425 S KARLOV AVEWest Elsdon23Completed14 daysInternetCity 311
9/2/20266241 N OAKLEY AVEWest Ridge50Completed12 daysPhone CallCity 311
9/2/20261341 N BOSWORTH AVEWest Town1Completed13 daysAlderman's OfficeCity 311
9/2/20264044 W 55TH STWest Elsdon23Completed14 daysInternetCity 311
9/2/20265227 N SPAULDING AVENorth Park39Completed13 daysPhone CallCity 311
9/2/20266241 N OAKLEY AVEWest Ridge50Completed12 daysPhone CallCity 311
9/2/20266241 N OAKLEY AVEWest Ridge50Completed12 daysPhone CallCity 311
9/2/20262854 N MEADE AVEBelmont Cragin30Completed12 daysPhone CallCity 311
9/2/20262550 N CLARK STLincoln Park43Completed9 daysPhone CallCity 311
9/2/20264711 W HUTCHINSON STPortage Park45Completed15 daysPhone CallCity 311
9/2/20264710 W HUTCHINSON STPortage Park45Completed15 daysPhone CallCity 311
9/2/20262719 W RASCHER AVELincoln Square40Completed12 daysPhone CallCity 311
9/2/20265042 N MELVINA AVEJefferson Park45Completed8 daysPhone CallCity 311
9/2/20263632 N HOYNE AVENorth Center47Completed12 daysInternetCity 311
9/2/20261742 N SEDGWICK STLincoln Park43Completed9 daysPhone CallCity 311
9/2/20265032 N ALBANY AVEAlbany Park33Completed9 daysInternetCity 311
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