RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4552 locations in the last 30 days (4700 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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/22/20252454 N ORCHARD STLincoln Park43Completed1 dayPhone CallCity 311
5/17/2026474 W 28TH STBridgeport11Completed1 dayInternetCity 311
2/5/20266550 W 64TH STClearing13Completed1 dayInternetCity 311
11/17/2025115 W 83RD STChatham6Completed1 dayInternetCity 311
11/17/20256417 S OAKLEY AVEChicago Lawn16Completed1 dayAlderman's OfficeCity 311
2/4/2026800 N HOYNE AVEWest Town36Completed1 dayPhone CallCity 311
5/26/20262621 W CRYSTAL STWest Town26Completed1 dayPhone CallCity 311
1/1/20265032 S ST LAWRENCE AVEGrand Boulevard20Completed1 dayPhone CallCity 311
2/23/2026738 W 107TH STRoseland21Completed1 dayPhone CallCity 311
5/6/20264746 S HAMLIN AVEArcher Heights14Completed1 dayPhone CallCity 311
6/4/20262130 N KEDZIE AVELogan Square35Completed1 dayMobile DeviceCity 311
4/7/2026329 W 25TH PLArmour Square11Completed1 dayPhone CallCity 311
3/18/20266510 S KEATING AVEClearing13Completed1 dayInternetCity 311
5/11/20265001 N MEADE AVEJefferson Park45Completed1 dayMobile DeviceCity 311
10/28/20255619 W 64TH PLClearing13Completed1 dayAlderman's OfficeCity 311
4/26/20261652 N NORMANDY AVEAustin29Completed1 dayInternetCity 311
1/15/20266029 W NELSON STBelmont Cragin30Completed1 dayPhone CallCity 311
11/20/20255936 S MICHIGAN AVEWashington Park20Completed1 dayPhone CallCity 311
12/9/20256034 N MAPLEWOODWest Ridge40Completed1 daySalesforce Mobile AppCity 311
4/1/20264715 S TRIPP AVEArcher Heights14Completed1 dayMobile DeviceCity 311
3/26/20265633 W LAWRENCE AVEPortage Park45Completed1 dayMobile DeviceCity 311
2/23/20266128 S CHAMPLAIN AVEWoodlawn20Completed1 dayInternetCity 311
9/14/20263609 N AUSTIN AVEPortage Park38Completed1 dayPhone CallCity 311
1/13/20262300 S MICHIGAN AVENear South Side3Completed1 dayPhone CallCity 311
5/4/20261249 W ARDMORE AVEEdgewater48Completed1 dayPhone CallCity 311
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