RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4386 locations in the last 30 days (4542 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/23/20243939 S CALUMET AVEGrand Boulevard3Completed2 daysPhone CallCity 311
6/7/20261427 W LUNT AVERogers Park49Completed2 daysInternetCity 311
6/2/20264226 S MICHIGAN AVEOakland4Completed2 daysPhone CallCity 311
9/29/2025640 W WRIGHTWOOD AVELincoln Park43Completed2 daysInternetCity 311
1/14/202610216 S PRINCETON AVERoseland9Completed2 daysPhone CallCity 311
11/29/20255006 S ARTESIAN AVEGage Park15Completed2 daysMobile DeviceCity 311
3/31/20265824 N HERMITAGE AVEEdgewater40Completed2 daysMobile DeviceCity 311
12/22/20253200 N RIDGEWAY AVEAvondale30Completed2 daysAlderman's OfficeCity 311
5/5/20267253 N OAKLEY AVEWest Ridge49Completed2 daysAlderman's OfficeCity 311
5/5/20261908 W SCHOOL STNorth Center32Completed2 daysMobile DeviceCity 311
4/22/2026912 N LEAMINGTON AVEAustin37Completed2 daysInternetCity 311
5/31/20266951 W ARCHER AVEGarfield Ridge13Completed2 daysMobile DeviceCity 311
2/18/20263917 W GLADYS AVEWest Garfield Park28Completed2 daysPhone CallCity 311
6/21/2026914 W BARRY AVELake View44Completed2 daysMobile DeviceCity 311
11/30/20255928 W ROSCOE STPortage Park30Completed2 daysMobile DeviceCity 311
1/26/20266039 N ALBANY AVEWest Ridge50Completed2 daysPhone CallCity 311
10/27/202569 E 16TH STNear South Side3Completed2 daysMobile DeviceCity 311
9/8/20265061 N MERRIMAC AVEJefferson Park45Completed2 daysPhone CallCity 311
11/22/20252332 W HARRISON STNear West Side28Completed2 daysInternetCity 311
2/18/20266500 S WOLCOTT AVEWest Englewood16Completed2 daysPhone CallCity 311
6/1/20266935 W ARCHER AVEGarfield Ridge23Completed2 daysInternetCity 311
10/7/20255233 S MOBILE AVEGarfield Ridge23Completed2 daysAlderman's OfficeCity 311
5/11/20261528 N CLEVELAND AVENear North Side2Completed2 daysPhone CallCity 311
4/29/20266059 S MERRIMACClearing13Completed2 daysSalesforce Mobile AppCity 311
8/25/20268510 S KARLOV AVEAshburn18Completed2 daysInternetCity 311
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