RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4439 locations in the last 30 days (4617 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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/5/202525 S OAKLEY BLVDNear West Side27Completed3 daysMobile DeviceCity 311
11/9/202525 W GRAND AVENear North Side42Completed1 dayInternetCity 311
11/24/202525 W RANDOLPH STLoop34Completed1 dayMobile DeviceCity 311
9/8/20252600 N BURLING STLincoln Park43Completed11 daysAlderman's OfficeCity 311
10/20/20252600 N KEDZIE AVELogan Square35Completed7 daysPhone CallCity 311
8/13/20262600 N MARSHFIELD AVELincoln Park32Completed12 daysPhone CallCity 311
9/8/20252600 N MEADE AVEBelmont Cragin30Completed14 daysAlderman's OfficeCity 311
8/2/20262600 N MONT CLARE AVEMontclare29Completed8 daysInternetCity 311
6/9/20262600 N MONT CLARE AVEMontclare29Completed3 daysInternetCity 311
4/13/20262600 N MONT CLARE AVEMontclare29Completed3 daysInternetCity 311
9/7/20262600 N RUTHERFORD AVEMontclare36Completed14 daysMobile DeviceCity 311
7/9/20262600 N SPRINGFIELD AVELogan Square35Completed11 daysPhone CallCity 311
1/28/20262600 S DR MARTIN LUTHER KING JR DRDouglas4Completed1 dayPhone CallCity 311
2/17/20262600 S HARDING AVESouth Lawndale22Completed3 daysAlderman's OfficeCity 311
10/1/20262600 S KOSTNER AVEWest Lawn18Completed20 daysAlderman's OfficeCity 311
8/5/20252600 S MICHIGAN AVEDouglas3Completed7 daysInternetCity 311
10/21/20262600 S MILLARD AVESouth Lawndale22Open—Mobile DeviceCity 311
10/20/20262600 W 22ND PLSouth Lawndale25Open—Mobile DeviceCity 311
5/9/20262600 W 22ND PLSouth Lawndale25Completed3 daysMobile DeviceCity 311
6/17/20262600 W 23RD STSouth Lawndale25Completed7 daysPhone CallCity 311
5/8/20262600 W 59TH STGage Park15Completed5 daysPhone CallCity 311
5/27/20262600 W BALMORAL AVELincoln Square40Completed5 daysMobile DeviceCity 311
6/25/20262600 W BELMONT AVEAvondale33Completed4 daysMobile DeviceCity 311
2/13/20262600 W DEVON AVEWest Ridge50Completed3 daysAlderman's OfficeCity 311
4/30/20262600 W EASTWOOD AVELincoln Square47Completed1 dayInternetCity 311
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