RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4349 locations in the last 30 days (4512 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/25/20263252 N WOLCOTT AVENorth Center32Completed3 daysInternetCity 311
5/30/20269358 S LAFLIN STWashington Heights21Completed3 daysMobile DeviceCity 311
6/15/202610817 S AVENUE HEast Side10Completed3 daysPhone CallCity 311
2/17/20264678 N KASSON AVEAlbany Park39Completed3 daysInternetCity 311
11/1/202511156 S VERNON AVERoseland9Completed3 daysInternetCity 311
2/28/20266433 N NEWGARD AVERogers Park49Completed3 daysMobile DeviceCity 311
6/19/20266138 S LOOMIS BLVDWest Englewood16Completed3 daysMobile DeviceCity 311
4/18/20266127 N WASHTENAW AVEWest Ridge40Completed3 daysMobile DeviceCity 311
10/6/20262921 W FARRAGUT AVELincoln Square39Completed3 daysPhone CallCity 311
5/5/20263675 N ELSTON AVEIrving Park33Completed3 daysMobile DeviceCity 311
4/26/20263107 W LELAND AVEAlbany Park33Completed3 daysInternetCity 311
8/25/20256017 S WHIPPLE STChicago Lawn15Completed3 daysInternetCity 311
6/20/20261925 W WARNER AVENorth Center47Completed3 daysPhone CallCity 311
11/14/20254610 N ASHLAND AVEUptown47Completed3 daysMobile DeviceCity 311
9/26/20265213 S CENTRAL AVEGarfield Ridge23Completed3 daysPhone CallCity 311
9/25/20264348 W WILCOX STWest Garfield Park28Completed3 daysInternetCity 311
3/20/20266163 N BROADWAYEdgewater48Completed3 daysInternetCity 311
10/24/20255012 W ADDISON STPortage Park30Completed3 daysMobile DeviceCity 311
5/19/20267057 W BELMONT AVEMontclare29Completed3 daysMobile DeviceCity 311
6/1/20263730 N NORDICA AVEDunning38Completed3 daysInternetCity 311
3/27/20264633 W BARRY AVEBelmont Cragin31Completed3 daysMobile DeviceCity 311
6/15/20264018 W PATTERSON AVEIrving Park30Completed3 daysInternetCity 311
4/26/20264134 N MANGO AVEPortage Park38Completed3 daysMobile DeviceCity 311
3/31/20262730 N NORDICA AVEMontclare29Completed3 daysInternetCity 311
5/9/20265259 S FRANCISCO AVEGage Park14Completed3 daysMobile DeviceCity 311
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