RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4462 locations in the last 30 days (4621 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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/31/20261821 W IRVING PARK RDNorth Center47Completed15 daysPhone CallCity 311
8/18/20262713 N SOUTHPORT AVELincoln Park32Completed15 daysInternetCity 311
8/31/20261451 N LARAMIE AVEAustin37Completed15 daysMobile DeviceCity 311
8/7/20255129 S MERRIMAC AVEGarfield Ridge23Completed15 daysMobile DeviceCity 311
8/18/20266232 N BROADWAYEdgewater48Completed15 daysInternetCity 311
8/18/20253501 N JANSSEN AVELake View44Completed15 daysAlderman's OfficeCity 311
8/25/20265118 N WINCHESTER AVELincoln Square40Completed15 daysPhone CallCity 311
8/25/20262441 W FARRAGUT AVELincoln Square40Completed15 daysPhone CallCity 311
8/31/2026652 N LOCKWOOD AVEAustin37Completed15 daysAlderman's OfficeCity 311
8/27/20251429 W OLIVE AVEWest Town1Completed15 daysPhone CallCity 311
8/19/20256019 W HIGGINS AVEJefferson Park45Completed15 daysMobile DeviceCity 311
8/30/20264945 W BYRON STPortage Park45Completed15 daysMobile DeviceCity 311
8/18/20261940 S RIDGEWAY AVENorth Lawndale24Completed15 daysInternetCity 311
8/25/20265118 N WINCHESTER AVELincoln Square40Completed15 daysPhone CallCity 311
8/11/20262424 W IRVING PARK RDNorth Center47Completed15 daysPhone CallCity 311
9/1/20262145 W EASTWOODLincoln Square47Completed15 daysSalesforce Mobile AppCity 311
7/20/20263330 N NEENAH AVEDunning38Completed15 daysMobile DeviceCity 311
9/9/20265821 N KIMBALL AVENorth Park39Completed15 daysInternetCity 311
8/6/20251645 W WAVELAND AVELake View47Completed15 daysInternetCity 311
9/2/20261619 W HUBBARD STWest Town27Completed15 daysMobile DeviceCity 311
8/9/20264054 N MELVINA AVEPortage Park38Completed15 daysInternetCity 311
7/29/2025902 N CALIFORNIA AVEWest Town36Completed15 daysInternetCity 311
8/21/20253533 W SHAKESPEARELogan Square35Completed15 daysSalesforce Mobile AppCity 311
8/24/2026836 N LEAMINGTON AVEAustin37Completed15 daysPhone CallCity 311
9/3/20261335 N BOSWORTH AVEWest Town1Completed15 daysPhone CallCity 311
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