RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4454 locations in the last 30 days (4625 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/13/20257547 S CREGIER AVESouth Shore8Completed9 daysPhone CallCity 311
7/8/20267523 S YATES BLVDSouth Shore7Completed9 daysPhone CallCity 311
8/18/20257335 S KENWOOD AVESouth Shore8Completed9 daysInternetCity 311
10/3/20251538 E 67TH PLSouth Shore5Completed5 daysPhone CallCity 311
10/3/20256832 S CORNELL AVESouth Shore5Completed5 daysPhone CallCity 311
1/3/20267875 S COLES AVESouth Shore7Completed2 daysInternetCity 311
9/2/20252432 E 73RD STSouth Shore7Completed9 daysPhone CallCity 311
8/15/20251514 E 72ND STSouth Shore8Completed12 daysPhone CallCity 311
10/25/20267004 S MERRILL AVESouth Shore5Open—InternetCity 311
8/20/20251520 E 72ND STSouth Shore8Completed7 daysMobile DeviceCity 311
10/6/20257130 S CYRIL AVESouth Shore5Completed2 daysMobile DeviceCity 311
8/25/20257748 S ESSEX AVESouth Shore7Completed8 daysPhone CallCity 311
10/20/20267747 S CORNELL AVESouth Shore8Open—InternetCity 311
7/7/20267700 S YATES AVESouth Shore7Completed1 dayPhone CallCity 311
1/8/20262241 E 71ST STSouth Shore5Canceled1 dayPhone CallCity 311
8/28/20257353 S COLES AVESouth Shore7Completed13 daysPhone CallCity 311
8/19/20252035 E 73RD STSouth Shore7Completed6 daysPhone CallCity 311
7/14/20267343 S PAXTON AVESouth Shore7Completed3 daysMobile DeviceCity 311
8/21/20252615 E 76TH STSouth Shore7Completed12 daysPhone CallCity 311
9/23/20257400 S SOUTH SHORE DRSouth Shore7Completed6 daysPhone CallCity 311
12/29/20252507 E 77TH STSouth Shore7Completed2 daysMobile DeviceCity 311
10/19/20267433 S EUCLID PKWYSouth Shore7Completed1 dayInternetCity 311
10/16/20267515 S CHAPPELSouth Shore8Completed5 daysSalesforce Mobile AppCity 311
10/3/20251426 E 72ND PLSouth Shore8Completed7 daysAlderman's OfficeCity 311
8/18/20252548 E 79TH STSouth Shore7Completed1 dayAlderman's OfficeCity 311
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