RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4470 locations in the last 30 days (4616 reports) · Last sighting 2 days 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

54,394 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/8/2026105 W 104TH STRoseland9Completed1 dayInternetCity 311
6/8/20267238 W BELMONT AVEDunning29Completed1 dayMobile DeviceCity 311
4/13/20263239 N OSAGE AVEDunning38Completed1 dayPhone CallCity 311
6/15/20269520 S BISHOP STWashington Heights21Completed1 dayInternetCity 311
9/30/20252853 W FARRAGUT AVELincoln Square39Completed1 dayPhone CallCity 311
12/22/20258239 S INDIANA AVEChatham6Completed1 dayMobile DeviceCity 311
8/13/2025309 W 25TH PLArmour Square11Completed1 dayPhone CallCity 311
7/1/20262126 W MOFFAT STLogan Square32Completed1 dayPhone CallCity 311
11/20/20252055 N NATCHEZ AVEBelmont Cragin36Completed1 dayMobile DeviceCity 311
2/2/20265127 W PARKER AVEBelmont Cragin31Completed1 dayMobile DeviceCity 311
5/7/20265701 S MOZART STGage Park15Completed1 dayAlderman's OfficeCity 311
4/8/20266377 N PAULINA STEdgewater40Completed1 dayPhone CallCity 311
3/12/20263434 W EVERGREEN AVEHumboldt Park26Completed1 dayPhone CallCity 311
11/19/20254619 N LOWELL AVEIrving Park39Completed1 dayPhone CallCity 311
8/14/20252614 S FARRELL STBridgeport11Completed1 dayAlderman's OfficeCity 311
12/29/20252240 W IOWA STWest Town36Completed1 dayPhone CallCity 311
2/25/20264843 W HOMER STBelmont Cragin36Completed1 dayInternetCity 311
10/27/20254545 N MULLIGAN AVEPortage Park38Canceled1 dayPhone CallCity 311
5/7/20265501 S FRANCISCO AVEGage Park15Completed1 dayAlderman's OfficeCity 311
2/2/20263351 N HAMLIN AVEAvondale30Completed1 dayAlderman's OfficeCity 311
12/4/20251916 N MOZART STLogan Square26Completed1 dayInternetCity 311
2/19/20265028 W JACKSON BLVDAustin28Completed1 dayAlderman's OfficeCity 311
5/7/20265701 S FRANCISCO AVEGage Park15Completed1 dayAlderman's OfficeCity 311
11/13/20252840 N MERRIMAC AVEBelmont Cragin30Completed1 dayAlderman's OfficeCity 311
12/8/20253311 W LE MOYNE STHumboldt Park26Completed1 dayPhone CallCity 311
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