RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4524 locations in the last 30 days (4679 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

54,257 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/6/20261434 W RASCHER AVEEdgewater48Completed15 daysMobile DeviceCity 311
9/17/20261434 W RASCHER AVEEdgewater48Completed8 daysInternetCity 311
9/29/20251435 N LATROBE AVEAustin37Completed3 daysPhone CallCity 311
11/4/20251435 N OAKLEY BLVDWest Town1Completed2 daysMobile DeviceCity 311
11/11/20251435 N WASHTENAW AVEWest Town26Completed2 daysInternetCity 311
6/30/20261435 N WASHTENAW AVEWest Town26Completed6 daysInternetCity 311
11/5/20251435 N WASHTENAW AVEWest Town26Completed7 daysMobile DeviceCity 311
12/17/20251435 N WELLSNear North Side2Completed1 daySalesforce Mobile AppCity 311
8/27/20261435 W 16TH STLower West Side25Completed12 daysMobile DeviceCity 311
3/2/20261435 W 17TH STLower West Side25Completed1 dayMobile DeviceCity 311
8/21/20251435 W 17TH STLower West Side25Completed7 daysMobile DeviceCity 311
6/7/20261435 W CATALPA AVEEdgewater48Completed2 daysMobile DeviceCity 311
1/29/20261435 W LEXINGTON STNear West Side34Completed1 dayPhone CallCity 311
2/16/20261436 N CAMPBELL AVEWest Town1Completed2 daysMobile DeviceCity 311
9/20/20261436 S AVERS AVENorth Lawndale24Completed10 daysMobile DeviceCity 311
4/20/20261436 S KOSTNER AVENorth Lawndale24Completed1 dayPhone CallCity 311
4/20/20261436 S KOSTNER AVENorth Lawndale24Completed1 dayInternetCity 311
8/2/20251436 W BERWYN AVEEdgewater48Completed16 daysMobile DeviceCity 311
7/29/20251436 W CHESTNUT STWest Town27Completed10 daysInternetCity 311
9/17/20261436 W CHESTNUT STWest Town27Completed11 daysInternetCity 311
8/6/20251436 W HURON STWest Town27Completed9 daysInternetCity 311
9/8/20261436 W IRVING PARK RDLake View47Completed14 daysMobile DeviceCity 311
9/29/20251436 W LEXINGTON STNear West Side34Completed1 dayAlderman's OfficeCity 311
8/4/20251436 W MONTROSE AVEUptown47Completed11 daysInternetCity 311
8/11/20251437 E 65TH STWoodlawn5Completed2 daysPhone CallCity 311
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