RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4440 locations in the last 30 days (4599 reports) · Last sighting 22 hours ago

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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

57,079 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/3/20261133 N MOZART STWest Town26Completed10 daysMobile DeviceCity 311
8/29/20252610 N MEADE AVEBelmont Cragin30Completed10 daysPhone CallCity 311
9/23/20252444 W CUYLER AVENorth Center47Completed10 daysPhone CallCity 311
9/18/20265800 S NEENAH AVEGarfield Ridge13Completed10 daysInternetCity 311
9/9/20253566 W CORTLAND STLogan Square26Completed10 daysMobile DeviceCity 311
9/14/20263524 W DICKENS AVELogan Square35Completed10 daysPhone CallCity 311
7/27/20256204 W EDDY STDunning30Completed10 daysMobile DeviceCity 311
9/26/20252025 N SPAULDING AVELogan Square26Completed10 daysPhone CallCity 311
7/25/20261641 N CENTRAL PARK AVEHumboldt Park26Completed10 daysMobile DeviceCity 311
8/16/202610719 S MILLARD AVEMount Greenwood19Completed10 daysInternetCity 311
9/20/20253938 W 66TH PLWest Lawn23Completed10 daysPhone CallCity 311
9/14/20267300 S KINGSTON AVESouth Shore7Completed10 daysPhone CallCity 311
8/2/2025850 E 88TH PLChatham8Completed10 daysMobile DeviceCity 311
7/31/202610949 S ST LOUIS AVEMount Greenwood19Completed10 daysPhone CallCity 311
9/16/2025524 W GRANT PLLincoln Park43Completed10 daysAlderman's OfficeCity 311
9/8/20251242 N CLEAVER STWest Town1Completed10 daysInternetCity 311
7/28/20255654 W BYRON STPortage Park38Completed10 daysInternetCity 311
8/29/20255017 W WAVELAND AVEPortage Park30Completed10 daysAlderman's OfficeCity 311
8/26/20255800 W ROSCOE STPortage Park30Completed10 daysAlderman's OfficeCity 311
8/11/20252153 W WARNER AVENorth Center47Completed10 daysMobile DeviceCity 311
7/10/20265900 S HONORE STWest Englewood15Completed10 daysPhone CallCity 311
6/30/20265100 W WARWICK AVEPortage Park30Completed10 daysAlderman's OfficeCity 311
9/28/20261220 W DRAPER STLincoln Park32Completed10 daysMobile DeviceCity 311
7/24/20261756 W 18TH PLLower West Side25Completed10 daysInternetCity 311
8/18/20264835 W WEST WEST END AVEAustin28Completed10 daysPhone CallCity 311
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