RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4697 locations in the last 30 days (4850 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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20266600 N OCTAVIA AVEEdison Park41Completed12 daysMobile DeviceCity 311
9/13/20264410 N SHERIDAN RDUptown46Completed12 daysMobile DeviceCity 311
8/27/20263451 W 66TH STChicago Lawn14Completed12 daysMobile DeviceCity 311
7/31/20252559 W PERSHING RDBrighton Park12Completed12 daysAlderman's OfficeCity 311
7/30/20253819 W FILLMORE STNorth Lawndale24Completed12 daysInternetCity 311
7/31/20254135 S ARCHER AVEBrighton Park12Completed12 daysMobile DeviceCity 311
8/30/20262710 W WARREN BLVDEast Garfield Park27Completed12 daysPhone CallCity 311
9/3/20255635 W MONTROSE AVEPortage Park38Completed12 daysAlderman's OfficeCity 311
8/17/202510524 S EGGLESTON AVERoseland21Completed12 daysPhone CallCity 311
8/24/20252137 N WESTERN AVELogan Square32Completed12 daysMobile DeviceCity 311
8/28/20252137 N STAVE STLogan Square1Completed12 daysMobile DeviceCity 311
9/4/20263901 W SCHUBERT AVELogan Square35Completed12 daysPhone CallCity 311
7/29/20263538 N PAULINA STLake View47Completed12 daysAlderman's OfficeCity 311
9/23/20263057 N SAWYER AVEAvondale35Completed12 daysInternetCity 311
9/3/20255800 N FOREST GLEN AVEForest Glen39Completed12 daysPhone CallCity 311
7/15/20261423 N MAPLEWOOD AVEWest Town1Completed12 daysInternetCity 311
8/21/20265623 N FAIRFIELD AVEWest Ridge40Completed12 daysPhone CallCity 311
7/15/20261427 N MAPLEWOOD AVEWest Town1Completed12 daysInternetCity 311
8/15/20263928 N CHRISTIANA AVEIrving Park33Completed12 daysMobile DeviceCity 311
7/25/20265000 N MELVINA AVEJefferson Park45Completed12 daysPhone CallCity 311
7/31/20263900 W HURON STHumboldt Park37Completed12 daysInternetCity 311
7/15/20261415 N MAPLEWOOD AVEWest Town1Completed12 daysInternetCity 311
8/31/20253401 N KOLMAR AVEIrving Park30Completed12 daysInternetCity 311
9/23/20265919 W EASTWOOD AVEPortage Park38Completed12 daysInternetCity 311
9/4/20254925 N KILBOURN AVEAlbany Park39Completed12 daysAlderman's OfficeCity 311
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