RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4794 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.

32080fewer → more

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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/23/20252035 N KOSTNER AVEHermosa35Completed1 dayInternetCity 311
2/12/20266441 N RAVENSWOOD AVERogers Park40Completed1 dayPhone CallCity 311
1/5/202610241 S AVENUE NEast Side10Completed1 dayWalk-inCity 311
11/3/20251938 W HENDERSON STNorth Center32Completed1 dayPhone CallCity 311
5/5/20264723 N MAGNOLIA AVEUptown46Completed1 dayPhone CallCity 311
1/14/20266422 N LEAVITT STWest Ridge50Completed1 dayInternetCity 311
4/1/20266158 S NARRAGANSETT AVEClearing13Completed1 dayInternetCity 311
6/4/20262200 N MAGNOLIA AVELincoln Park2Completed1 dayAlderman's OfficeCity 311
2/25/20268838 S HARPER AVECalumet Heights8Completed1 dayAlderman's OfficeCity 311
1/12/2026918 N LARAMIE AVEAustin37Completed1 dayPhone CallCity 311
1/29/20261337 W HENDERSON STLake View44Completed1 dayPhone CallCity 311
12/9/20251523 W MONTANA AVELincoln Park32Completed1 dayPhone CallCity 311
4/21/20261550 W CHICAGO AVEWest Town1Completed1 dayPhone CallCity 311
6/11/20263514 S PRAIRIE AVEDouglas3Completed1 dayMobile DeviceCity 311
3/31/2026323 W 25TH PLArmour Square11Completed1 dayPhone CallCity 311
1/19/20261118 N STATE STNear North Side2Completed1 dayMobile DeviceCity 311
6/3/202610567 S WENTWORTH AVERoseland9Completed1 dayAlderman's OfficeCity 311
9/29/20261149 N LOCKWOOD AVEAustin37Completed1 dayPhone CallCity 311
6/24/20265107 S LUNA AVEGarfield Ridge23Completed1 dayPhone CallCity 311
7/16/20262719 W CHASE AVEWest Ridge50Completed1 dayPhone CallCity 311
2/16/20264455 S LOWE AVENew City15Completed1 dayPhone CallCity 311
4/9/20262301 W 72ND STChicago Lawn18Completed1 dayAlderman's OfficeCity 311
4/28/20261119 S CENTRAL PARK AVENorth Lawndale24Completed1 dayPhone CallCity 311
1/7/20268721 S ABERDEEN STAuburn Gresham21Completed1 dayPhone CallCity 311
3/31/20264556 S MARSHFIELD AVENew City15Completed1 dayInternetCity 311
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