RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4508 locations in the last 30 days (4681 reports) · Last sighting 14 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/19/20262028 W MOFFAT STLogan Square32Completed3 daysMobile DeviceCity 311
3/27/20265700 W EDDY STPortage Park30Completed3 daysAlderman's OfficeCity 311
11/4/20255748 W CULLOM AVEPortage Park38Completed3 daysPhone CallCity 311
3/27/20269045 S RACINE AVEWashington Heights21Completed3 daysInternetCity 311
11/15/2025859 N DEARBORN STNear North Side42Completed3 daysMobile DeviceCity 311
8/25/20255004 S KOMENSKY AVEArcher Heights14Completed3 daysInternetCity 311
11/15/20255023 W WEST END AVEAustin28Completed3 daysInternetCity 311
10/20/20253735 W 70TH STWest Lawn23Completed3 daysPhone CallCity 311
6/20/20266035 S RHODES AVEWoodlawn20Completed3 daysPhone CallCity 311
2/17/20265600 S DAMEN AVEWest Englewood15Completed3 daysAlderman's OfficeCity 311
6/8/20268116 S CLAREMONT AVEAshburn18Completed3 daysMobile DeviceCity 311
11/25/20251638 N TALMAN AVEWest Town26Completed3 daysInternetCity 311
3/20/20266047 S MAYFIELD AVEClearing13Completed3 daysInternetCity 311
6/2/20261016 N KEDZIE AVEHumboldt Park26Completed3 daysPhone CallCity 311
8/9/20254332 S ST LAWRENCE AVEGrand Boulevard4Completed3 daysInternetCity 311
4/10/20265042 N WINTHROP AVEUptown48Completed3 daysMobile DeviceCity 311
5/1/20264966 N KOLMAR AVEAlbany Park39Completed3 daysInternetCity 311
5/10/20261746 W CORNELIA AVELake View47Completed3 daysMobile DeviceCity 311
5/17/20261449 N RIDGEWAY AVEHumboldt Park26Completed3 daysMobile DeviceCity 311
6/22/2026611 N WALLER AVEAustin29Completed3 daysInternetCity 311
6/12/20262201 W CAMPBELL PARK DRNear West Side28Completed3 daysInternetCity 311
6/29/20266036 N BROADWAYEdgewater48Completed3 daysMobile DeviceCity 311
12/12/20254309 N MASON AVEPortage Park38Completed3 daysMobile DeviceCity 311
6/15/20267931 S ABERDEEN STAuburn Gresham17Completed3 daysMobile DeviceCity 311
5/18/20266133 S RUTHERFORD AVEClearing13Completed3 daysInternetCity 311
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