RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4613 locations in the last 30 days (4765 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

55,690 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20251845 W SUPERIOR STWest Town36Completed10 daysMobile DeviceCity 311
8/10/20261845 W SUPERIOR STWest Town36Completed15 daysMobile DeviceCity 311
8/5/20251846 N ALBANY AVELogan Square26Completed7 daysInternetCity 311
9/2/20251846 N DAMEN AVELogan Square32Completed9 daysMobile DeviceCity 311
5/1/20261846 N RICHMOND STLogan Square26Completed3 daysInternetCity 311
5/18/20261846 N RICHMOND STLogan Square26Completed2 daysInternetCity 311
7/13/20261846 N RICHMOND STLogan Square26Completed9 daysInternetCity 311
6/17/20261846 N RICHMOND STLogan Square26Completed5 daysInternetCity 311
10/12/20261846 N RICHMOND STLogan Square26Open—InternetCity 311
7/29/20261846 N RICHMOND STLogan Square26Completed13 daysInternetCity 311
6/26/20261846 N RICHMOND STLogan Square26Completed5 daysInternetCity 311
5/7/20261846 N RICHMOND STLogan Square26Completed4 daysInternetCity 311
8/18/20261846 N WASHTENAW AVELogan Square1Completed9 daysInternetCity 311
6/20/20261846 S KEDZIE AVENorth Lawndale24Completed5 daysMobile DeviceCity 311
10/6/20251846 S SPRINGFIELD AVENorth Lawndale24Completed3 daysMobile DeviceCity 311
9/2/20261846 W 17TH STLower West Side25Completed14 daysInternetCity 311
8/30/20251846 W MELROSE STNorth Center32Completed9 daysInternetCity 311
2/28/20261846 W MELROSE STNorth Center32Completed3 daysInternetCity 311
4/11/20261846 W MELROSE STNorth Center32Completed3 daysInternetCity 311
7/15/20261846 W PERSHING RDMcKinley Park12Completed5 daysMobile DeviceCity 311
8/1/20261847 N HUMBOLDT BLVDLogan Square26Completed12 daysMobile DeviceCity 311
6/22/20261847 N HUMBOLDT BLVDLogan Square26Completed2 daysPhone CallCity 311
10/13/20251847 N PULASKI RDHermosa26Completed9 daysPhone CallCity 311
8/1/20251847 N SEDGWICK STLincoln Park43Completed3 daysPhone CallCity 311
9/18/20251847 N SEDGWICK STLincoln Park43Completed8 daysPhone CallCity 311
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