RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4780 locations in the last 30 days (4937 reports) · Last sighting 14 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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/6/20256745 S ARTESIAN AVEChicago Lawn16Completed3 daysInternetCity 311
10/31/20256744 N MAPLEWOOD AVEWest Ridge50Completed4 daysMobile DeviceCity 311
9/7/20266743 W IRVING PARK RDDunning38Completed10 daysInternetCity 311
12/9/20256743 S KOSTNER AVEWest Lawn23Completed1 dayPhone CallCity 311
7/29/20266743 S JUSTINE STWest Englewood16Completed5 daysInternetCity 311
8/11/20266743 S JUSTINE STWest Englewood16Completed1 dayPhone CallCity 311
6/17/20266743 S JUSTINE STWest Englewood16Completed5 daysInternetCity 311
8/28/20256743 N CAMPBELL AVEWest Ridge50Completed1 dayPhone CallCity 311
4/25/20266742 W FOSTER AVENorwood Park41Completed3 daysInternetCity 311
9/23/20256742 W 64TH PLClearing13Completed8 daysMobile DeviceCity 311
11/13/20256742 W 64TH PLClearing13Completed1 dayAlderman's OfficeCity 311
5/4/20266742 W 64TH PLClearing13Completed2 daysInternetCity 311
8/11/20256742 W 64TH PLClearing13Completed10 daysInternetCity 311
11/17/20256742 S CALUMET AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
5/3/20266742 N WHIPPLE STWest Ridge50Completed4 daysInternetCity 311
10/1/20266742 N DOWAGIAC AVEForest Glen45Open—Phone CallCity 311
8/13/20256741 S SANGAMON STEnglewood16Completed2 daysInternetCity 311
8/4/20256741 N CLARK STRogers Park49Completed7 daysAlderman's OfficeCity 311
6/28/20266740 W DIVERSEY AVEMontclare36Completed4 daysPhone CallCity 311
4/11/20266740 W 64TH STClearing13Completed2 daysMobile DeviceCity 311
7/21/20266740 N WILDWOOD AVEForest Glen45Completed14 daysAlderman's OfficeCity 311
6/29/20266739 S EAST END AVESouth Shore5Completed9 daysInternetCity 311
10/10/20256739 S EAST END AVESouth Shore5Completed7 daysMobile DeviceCity 311
11/23/20256739 N TALMAN AVEWest Ridge50Completed3 daysMobile DeviceCity 311
7/29/20256739 N ODELL AVEEdison Park41Completed9 daysInternetCity 311
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