RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4498 locations in the last 30 days (4647 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/17/20267027 W SCHOOL STDunning29Completed1 dayMobile DeviceCity 311
10/21/20257027 W SCHOOL STDunning29Completed1 dayMobile DeviceCity 311
2/19/20267027 W 63RD STClearing13Completed4 daysMobile DeviceCity 311
11/1/20257027 W 63RD STClearing13Completed3 daysMobile DeviceCity 311
6/2/20267027 S WABASH AVEGreater Grand Crossing6Completed1 dayPhone CallCity 311
8/21/20267027 S LAFLIN STWest Englewood17Completed13 daysMobile DeviceCity 311
9/29/20257027 N GLENWOOD AVERogers Park49Completed8 daysMobile DeviceCity 311
10/7/20257027 N GLENWOOD AVERogers Park49Completed9 daysAlderman's OfficeCity 311
8/16/20257026 W SCHOOL STDunning38Completed6 daysInternetCity 311
9/10/20257026 W SCHOOL STDunning38Completed1 dayPhone CallCity 311
8/25/20267026 W 64TH PLClearing13Completed20 daysMobile DeviceCity 311
9/2/20267026A W BELDEN AVEAustin29Completed2 daysInternetCity 311
8/29/20267026A W BELDEN AVEAustin29Completed6 daysInternetCity 311
7/24/20267025 W IRVING PARK RDDunning38Completed17 daysPhone CallCity 311
3/11/20267024 W MELROSE STDunning29Completed1 dayMobile DeviceCity 311
4/17/20267024 S YALE AVEGreater Grand Crossing6Completed4 daysPhone CallCity 311
7/21/20267024 S HERMITAGE AVEWest Englewood17Completed10 daysMobile DeviceCity 311
4/27/20267024 S EMERALD AVEEnglewood6Completed3 daysPhone CallCity 311
10/11/20257023 S JUSTINE STWest Englewood17Completed10 daysPhone CallCity 311
9/10/20257023 S EBERHART AVEGreater Grand Crossing6Completed14 daysInternetCity 311
1/7/20267023 S CORNELL AVESouth Shore5Completed1 dayInternetCity 311
3/4/20267022 W BERWYN AVENorwood Park41Completed1 dayPhone CallCity 311
9/9/20257022 W 63RD PLClearing13Completed14 daysInternetCity 311
8/29/20267022 S ROCKWELL STChicago Lawn17Completed12 daysMobile DeviceCity 311
7/29/20267021 W 64TH STClearing13Completed9 daysMobile DeviceCity 311
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