RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4500 locations in the last 30 days (4673 reports) · Last sighting 16 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/22/20262506 N NEW ENGLAND AVEMontclare36Completed2 daysPhone CallCity 311
11/28/20252506 N NEW ENGLAND AVEMontclare36Completed3 daysPhone CallCity 311
10/30/20252506 N NEW ENGLAND AVEMontclare36Completed4 daysPhone CallCity 311
12/19/20252506 W AINSLIE STLincoln Square40Completed3 daysPhone CallCity 311
8/28/20262506 W HADDON AVEWest Town36Completed11 daysInternetCity 311
12/29/20252507 E 77TH STSouth Shore7Completed2 daysMobile DeviceCity 311
8/13/20262507 N FRANCISCO AVELogan Square1Completed13 daysInternetCity 311
1/4/20262507 N HALSTED STLincoln Park43Completed1 dayInternetCity 311
10/27/20252507 N HALSTED STLincoln Park43Completed2 daysInternetCity 311
4/2/20262507 N HALSTED STLincoln Park43Completed1 dayInternetCity 311
8/29/20252507 N LOWELL AVEHermosa31Completed13 daysPhone CallCity 311
6/26/20262507 N MONT CLARE AVEMontclare29Completed6 daysInternetCity 311
9/1/20252507 N TRIPP AVEHermosa31Completed13 daysMobile DeviceCity 311
8/26/20262507 W 69TH STChicago Lawn16Completed15 daysAlderman's OfficeCity 311
12/6/20252507 W AUGUSTA BLVDWest Town36Completed3 daysInternetCity 311
10/12/20252507 W CATALPA AVELincoln Square40Completed5 daysInternetCity 311
7/16/20262507 W COYLE AVEWest Ridge40Completed8 daysMobile DeviceCity 311
9/17/20252507 W COYLE AVEWest Ridge40Completed8 daysMobile DeviceCity 311
8/28/20252507 W COYLE AVEWest Ridge40Completed13 daysMobile DeviceCity 311
6/2/20262507 W GUNNISON STLincoln Square40Completed3 daysPhone CallCity 311
7/26/20252508 N GREENVIEW AVELincoln Park32Completed11 daysInternetCity 311
3/31/20262508 N MONTICELLO AVELogan Square35Completed2 daysInternetCity 311
10/17/20252508 N NARRAGANSETT AVEBelmont Cragin36Completed7 daysPhone CallCity 311
8/9/20252508 N ST LOUIS AVELogan Square35Completed11 daysInternetCity 311
7/16/20262508 S BLUE ISLAND AVELower West Side25Completed8 daysAlderman's OfficeCity 311
Page 635 of 2,312
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