RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4278 locations in the last 30 days (4436 reports) · Last sighting 19 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
2/24/20262044 N ORLEANS STLincoln Park43Completed1 dayInternetCity 311
9/11/20252044 N ORLEANS STLincoln Park43Completed12 daysInternetCity 311
5/26/20262044 N RACINE AVELincoln Park2Completed3 daysPhone CallCity 311
8/18/20262044 W BIRCHWOOD AVERogers Park49Completed13 daysPhone CallCity 311
9/4/20252044 W BIRCHWOOD AVERogers Park49Completed13 daysInternetCity 311
10/28/20252044 W BIRCHWOOD AVERogers Park49Completed2 daysInternetCity 311
9/27/20262044 W HADDON AVEWest Town1Completed12 daysInternetCity 311
8/9/20252044 W HURON STWest Town36Completed12 daysPhone CallCity 311
9/9/20252044 W IOWA STWest Town36Completed8 daysInternetCity 311
5/27/20262044 W RICE STWest Town36Completed1 dayMobile DeviceCity 311
8/29/20262045 N DAMEN AVELogan Square32Completed16 daysMobile DeviceCity 311
8/26/20262045 N LINCOLN PARK WLincoln Park43Completed13 daysMobile DeviceCity 311
11/4/20252045 N LINCOLN PARK WESTLincoln Park43Completed2 daysInternetCity 311
3/30/20262045 N LINCOLN PARK WESTLincoln Park43Completed1 dayInternetCity 311
3/31/20262045 N LINCOLN PARK WESTLincoln Park43Completed1 dayInternetCity 311
8/7/20252045 N LINCOLN PARK WESTLincoln Park43Completed13 daysPhone CallCity 311
8/18/20262045 W BIRCHWOOD AVERogers Park49Completed13 daysAlderman's OfficeCity 311
8/3/20262045 W CHARLESTON STLogan Square32Completed10 daysMobile DeviceCity 311
5/13/20262045 W JACKSON BLVDNear West Side27Completed5 daysInternetCity 311
8/26/20262045 W LAWRENCE AVELincoln Square47Completed14 daysMobile DeviceCity 311
9/17/20262045 W MELROSE STNorth Center32Completed4 daysInternetCity 311
10/1/20262045 W MELROSE STNorth Center32Completed15 daysPhone CallCity 311
8/8/20252045 W MORSE AVEWest Ridge40Completed6 daysPhone CallCity 311
3/30/20262045 W MORSE AVEWest Ridge40Completed2 daysInternetCity 311
9/29/20262045 W SUMMERDALE AVELincoln Square40Completed14 daysPhone CallCity 311
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