RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4637 locations in the last 30 days (4787 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/20/20254941 N MENARD AVEJefferson Park45Completed1 dayPhone CallCity 311
10/15/20253624 N PAULINA STLake View47Completed1 dayPhone CallCity 311
2/15/20265205 S DREXEL AVEHyde Park20Completed1 dayInternetCity 311
11/13/2025143 N MASON AVEAustin29Completed1 dayInternetCity 311
2/17/20263551 N OZARK AVEDunning38Completed1 dayPhone CallCity 311
5/12/20265856 S WHIPPLE STGage Park14Completed1 dayPhone CallCity 311
12/22/20255055 N WOLCOTT AVELincoln Square40Completed1 dayMobile DeviceCity 311
2/17/20268420 S BAKER AVESouth Chicago10Completed1 dayPhone CallCity 311
1/21/20262025 W PENSACOLA AVENorth Center47Completed1 dayInternetCity 311
7/27/20266205 N CICERO AVEForest Glen39Completed1 dayInternetCity 311
3/30/202610345 S MILLARD AVEMount Greenwood19Completed1 dayMobile DeviceCity 311
6/29/20265831 N WINTHROP AVEEdgewater48Completed1 dayPhone CallCity 311
4/22/20263600 W 70TH PLWest Lawn23Completed1 dayAlderman's OfficeCity 311
1/21/20267167 W ARMITAGE AVEAustin29Completed1 dayAlderman's OfficeCity 311
4/22/20263609 W 70TH STWest Lawn23Completed1 dayPhone CallCity 311
11/18/20253021 N SPAULDING AVEAvondale35Completed1 dayPhone CallCity 311
4/21/20264523 N KENNETH AVEIrving Park39Completed1 dayPhone CallCity 311
2/2/20268641 S KENNETH AVEAshburn18Completed1 dayPhone CallCity 311
5/19/20261925 N SAWYER AVELogan Square26Completed1 dayInternetCity 311
3/2/20264451 N CLARENDON AVEUptown46Completed1 dayMobile DeviceCity 311
6/3/20267246 N OAKLEY AVEWest Ridge50Completed1 dayPhone CallCity 311
11/6/2025224 W 31ST STArmour Square11Completed1 dayMobile DeviceCity 311
8/13/20252531 N PARKSIDE AVEBelmont Cragin30Completed1 dayPhone CallCity 311
7/6/202611000 S NORMAL AVERoseland21Completed1 dayInternetCity 311
6/25/20268912 S MAY STWashington Heights21Completed1 dayInternetCity 311
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