RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4424 locations in the last 30 days (4580 reports) · Last sighting 9 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

57,080 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/6/20262941 N LOWELL AVEHermosa31Completed2 daysAlderman's OfficeCity 311
7/6/202610300 S AVENUE MEast Side10Completed2 daysWalk-inCity 311
3/4/2026700 E 91ST STChatham8Completed2 daysPhone CallCity 311
6/1/20263117 N NATOMA AVEMontclare36Completed2 daysInternetCity 311
5/20/2026220 S HOYNE AVENear West Side27Completed2 daysPhone CallCity 311
2/24/202616 S CENTRAL AVEAustin29Completed2 daysInternetCity 311
6/9/20264733 N SAWYER AVEAlbany Park33Completed2 daysPhone CallCity 311
5/15/2024619 E GROVELAND PARKDouglas4Completed2 daysInternetCity 311
5/11/20261455 W LELAND AVEUptown46Completed2 daysInternetCity 311
10/8/2025125 E PERSHING RDGrand Boulevard3Completed2 daysPhone CallCity 311
12/2/20252333 W MONTANA STLogan Square32Completed2 daysMobile DeviceCity 311
11/15/20254637 S WASHTENAW AVEBrighton Park12Completed2 daysPhone CallCity 311
11/23/20251959 N STOCKTON DRLincoln Park43Completed2 daysInternetCity 311
7/11/2026711 S LYTLE STNear West Side34Completed2 daysMobile DeviceCity 311
10/20/20252414 W CHARLESTON STLogan Square1Completed2 daysPhone CallCity 311
2/21/20266251 W LAWRENCE AVEPortage Park41Completed2 daysPhone CallCity 311
10/5/20254013 S CAMPBELL AVEBrighton Park12Completed2 daysPhone CallCity 311
7/15/20261536 S HOMAN AVENorth Lawndale24Completed2 daysInternetCity 311
8/22/20262256 N SAWYER AVELogan Square35Completed2 daysMobile DeviceCity 311
2/18/20263306 N AVERS AVEAvondale30Completed2 daysInternetCity 311
6/14/202610845 S HAMLIN AVEMount Greenwood19Completed2 daysInternetCity 311
6/9/20261924 N SEMINARY AVELincoln Park43Completed2 daysMobile DeviceCity 311
6/7/20264900 W VAN BUREN STAustin29Completed2 daysPhone CallCity 311
11/24/20251929 W BERWYN AVELincoln Square40Completed2 daysInternetCity 311
4/1/20262558 N HARLEM AVE——Completed2 daysInternetCity 311
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