RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4642 locations in the last 30 days (4792 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.

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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/12/20251646 W 18TH STLower West Side25Completed11 daysAlderman's OfficeCity 311
9/12/20251646 W 18TH STLower West Side25Completed11 daysPhone CallCity 311
9/12/20251646 W 18TH STLower West Side25Completed11 daysPhone CallCity 311
12/22/20251646 W 18TH STLower West Side25Completed1 dayPhone CallCity 311
4/30/20261646 W 21ST PLLower West Side25Completed4 daysMobile DeviceCity 311
5/26/20261646 W 21ST PLLower West Side25Completed1 dayInternetCity 311
12/3/20251646 W CERMAK RDLower West Side25Completed1 dayPhone CallCity 311
2/9/20261646 W CORTLAND STLogan Square32Completed1 dayInternetCity 311
5/10/20261646 W JULIAN STWest Town1Completed3 daysInternetCity 311
8/14/20251646 W MELROSE STLake View32Completed11 daysInternetCity 311
5/5/20261646 W WRIGHTWOOD AVELincoln Park32Completed2 daysInternetCity 311
4/28/20261647 N LA SALLE DRLincoln Park43Completed3 daysAlderman's OfficeCity 311
5/12/20261647 N LA SALLE DRLincoln Park43Completed1 dayMobile DeviceCity 311
11/3/20251647 N LA SALLE DRLincoln Park43Completed3 daysInternetCity 311
8/5/20251647 N LATROBE AVEAustin37Completed14 daysPhone CallCity 311
8/21/20251647 N LATROBE AVEAustin37Completed8 daysPhone CallCity 311
11/18/20251647 N MEADE AVEAustin29Completed1 dayPhone CallCity 311
8/7/20251647 N MONTICELLO AVEHumboldt Park26Completed6 daysPhone CallCity 311
9/5/20251647 N SEDGWICK STLincoln Park2Completed6 daysMobile DeviceCity 311
8/26/20251647 W 17TH STLower West Side25Completed13 daysMobile DeviceCity 311
9/2/20251647 W 19TH STLower West Side25Completed6 daysPhone CallCity 311
7/14/20261647 W 21ST PLLower West Side25Completed6 daysInternetCity 311
8/26/20261647 W 38TH STMcKinley Park12Completed9 daysPhone CallCity 311
10/1/20251647 W 38TH STMcKinley Park12Completed6 daysMobile DeviceCity 311
8/2/20261647 W 38TH STMcKinley Park12Completed12 daysMobile DeviceCity 311
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