RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4508 locations in the last 30 days (4674 reports) · Last sighting 19 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

52,998 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
5/20/20269035 S NORMAL AVEAuburn Gresham9Completed6 daysPhone CallCity 311
9/21/20259035 S CORNELL AVECalumet Heights8Completed8 daysPhone CallCity 311
11/12/20259031 S OGLESBY AVECalumet Heights7Completed2 daysInternetCity 311
8/24/20269031 S MUSKEGON AVESouth Chicago10Completed9 daysPhone CallCity 311
9/8/20259031 S MUSKEGON AVESouth Chicago10Completed9 daysPhone CallCity 311
10/13/20259031 S MORGAN STWashington Heights21Completed9 daysPhone CallCity 311
8/3/2025902 W FLETCHER STLake View44Completed11 daysMobile DeviceCity 311
5/11/2026902 W 86TH PLAuburn Gresham17Completed4 daysPhone CallCity 311
7/28/2025902 N WESTERN AVEWest Town36Completed9 daysInternetCity 311
5/7/2026902 N LECLAIRE AVEAustin37Completed5 daysInternetCity 311
10/24/2025902 N KARLOV AVEHumboldt Park37Completed6 daysPhone CallCity 311
7/29/2025902 N CALIFORNIA AVEWest Town36Completed15 daysInternetCity 311
3/11/2026902 N AVERS AVEHumboldt Park37Completed1 dayInternetCity 311
10/20/2025902 N AVERS AVEHumboldt Park37Completed2 daysInternetCity 311
7/25/2025902 E 83RD STChatham8Completed11 daysInternetCity 311
9/3/20259027 S COLFAX AVECalumet Heights7Completed9 daysPhone CallCity 311
10/19/20259026 S YATES AVECalumet Heights7Completed3 daysPhone CallCity 311
7/25/20259026 S HOYNE AVEBeverly19Completed10 daysMobile DeviceCity 311
5/26/20269025 S GREENWOOD AVEBurnside8Completed2 daysPhone CallCity 311
6/9/20269025 S GREENWOOD AVEBurnside8Completed1 dayPhone CallCity 311
10/1/20259023 S UNIVERSITY AVEBurnside8Completed9 daysMobile DeviceCity 311
10/16/20259022 S KINGSTON AVECalumet Heights7Completed5 daysPhone CallCity 311
8/5/20269020 S KINGSTON AVECalumet Heights7Completed14 daysAlderman's OfficeCity 311
8/14/20259020 S HARPER AVECalumet Heights8Completed8 daysPhone CallCity 311
8/3/2025901 W OAKDALE AVELake View44Completed9 daysMobile DeviceCity 311
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