RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4332 locations in the last 30 days (4496 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

57,500 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/20/20265139 S SPRINGFIELD AVEWest Elsdon23Completed2 daysInternetCity 311
6/15/20263155 S KARLOV AVESouth Lawndale22Completed2 daysMobile DeviceCity 311
2/13/20262440 N RICHMOND STLogan Square1Completed2 daysMobile DeviceCity 311
1/25/202610018 S SANGAMON STWashington Heights21Completed2 daysInternetCity 311
8/31/2026853 N PULASKI RDHumboldt Park37Completed2 daysInternetCity 311
5/2/20265638 W 63RD PLClearing13Completed2 daysInternetCity 311
1/30/20266754 S CHICAGO AVEGreater Grand Crossing6Completed2 daysMobile DeviceCity 311
10/21/20254638 W 47TH STGarfield Ridge22Completed2 daysInternetCity 311
4/29/2026706 E 92ND STChatham8Completed2 daysPhone CallCity 311
8/22/20265649 W PATTERSON AVEPortage Park38Completed2 daysMobile DeviceCity 311
6/15/20263136 S KARLOV AVESouth Lawndale22Completed2 daysMobile DeviceCity 311
4/26/202610349 S MILLARD AVEMount Greenwood19Completed2 daysMobile DeviceCity 311
6/14/20264409 S KOMENSKY AVEArcher Heights14Completed2 daysPhone CallCity 311
10/26/20253838 N LINDER AVEPortage Park30Completed2 daysInternetCity 311
5/9/2026678 N ORLEANS STNear North Side42Completed2 daysInternetCity 311
10/29/202510443 S HALE AVEBeverly19Completed2 daysPhone CallCity 311
8/27/2025746 E 82ND STChatham6Completed2 daysInternetCity 311
6/15/20265033 N KOSTNER AVEAlbany Park39Completed2 daysInternetCity 311
5/13/20263044 W 84TH PLAshburn18Completed2 daysMobile DeviceCity 311
5/25/20262418 N SPRINGFIELD AVELogan Square35Completed2 daysMobile DeviceCity 311
5/2/2026937 W 37TH STBridgeport11Completed2 daysMobile DeviceCity 311
5/12/20264810 S SEELEY AVENew City15Completed2 daysMobile DeviceCity 311
1/30/2026341 W 109TH STRoseland21Completed2 daysInternetCity 311
7/24/20261160 W VAN BUREN STNear West Side34Completed2 daysPhone CallCity 311
11/9/202511442 S DAVOL STMorgan Park21Completed2 daysPhone CallCity 311
Page 657 of 2,300
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