RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4429 locations in the last 30 days (4590 reports) · Last sighting 23 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

57,251 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/10/20262243 S KOSTNER AVENorth Lawndale22Completed3 daysPhone CallCity 311
7/8/20262243 W 19TH STLower West Side25Completed6 daysMobile DeviceCity 311
2/10/20262243 W 19TH STLower West Side25Completed0 daysInternetCity 311
7/23/20252243 W EASTWOOD AVELincoln Square47Completed9 daysInternetCity 311
10/20/20262243 W GREENLEAF AVEWest Ridge50Open—Mobile DeviceCity 311
1/8/20262243 W WASHINGTON BLVDNear West Side27Completed0 daysMobile DeviceCity 311
9/22/20252244 N BISSELL STLincoln Park43Completed4 daysInternetCity 311
9/11/20252244 N CLEVELANDLincoln Park43Completed8 daysSalesforce Mobile AppCity 311
4/9/20262244 N CLEVELANDLincoln Park43Completed1 daySalesforce Mobile AppCity 311
2/13/20262244 N CLEVELANDLincoln Park43Completed3 daysSalesforce Mobile AppCity 311
6/18/20262244 N KENMORE AVELincoln Park43Completed5 daysPhone CallCity 311
6/1/20262244 N KENMORE AVELincoln Park43Completed1 dayInternetCity 311
6/18/20262244 N KENMORE AVELincoln Park43Completed5 daysAlderman's OfficeCity 311
6/4/20262244 N KENMORE AVELincoln Park43Completed4 daysPhone CallCity 311
6/4/20262244 N KENMORE AVELincoln Park43Completed1 dayAlderman's OfficeCity 311
4/7/20262244 N KENMORE AVELincoln Park43Completed1 dayMobile DeviceCity 311
10/17/20252244 N KILPATRICK AVEBelmont Cragin26Completed7 daysMobile DeviceCity 311
7/20/20262244 N LAPORTE AVEBelmont Cragin26Completed9 daysPhone CallCity 311
10/9/20252244 N LOCKWOOD AVEBelmont Cragin36Completed6 daysPhone CallCity 311
9/30/20252244 N MAPLEWOOD AVELogan Square1Completed1 dayInternetCity 311
8/1/20252244 S DRAKE AVESouth Lawndale22Completed11 daysPhone CallCity 311
8/14/20262244 W CARMEN AVELincoln Square40Completed7 daysPhone CallCity 311
9/11/20262244 W CARMEN AVELincoln Square40Completed3 daysPhone CallCity 311
7/16/20262244 W CARMEN AVELincoln Square40Completed8 daysMobile DeviceCity 311
9/10/20262244 W FLETCHER STNorth Center32Completed13 daysInternetCity 311
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