RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4353 locations in the last 30 days (4534 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

58,313 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/20/20252649 W CORTEZ STWest Town36Completed9 daysMobile DeviceCity 311
4/28/20262249 W IOWA STWest Town36Completed2 daysMobile DeviceCity 311
12/11/20252328 W AUGUSTA BLVDWest Town36Completed1 dayMobile DeviceCity 311
8/8/20252215 N MENARD AVEBelmont Cragin36Completed12 daysMobile DeviceCity 311
12/22/20256943 W DIVERSEY AVEMontclare36Completed1 dayMobile DeviceCity 311
9/8/20252455 N NEWCASTLE AVEMontclare36Completed3 daysAlderman's OfficeCity 311
12/22/20252402 N NEW ENGLAND AVEMontclare36Completed1 dayInternetCity 311
9/10/20261300 N HARDING AVEHumboldt Park36Completed13 daysPhone CallCity 311
10/21/20264235 W NORTH AVEHumboldt Park36Open—InternetCity 311
12/22/20252100 N LATROBE AVEBelmont Cragin36Completed1 dayInternetCity 311
7/10/20262300 W CHICAGO AVEWest Town36Completed6 daysPhone CallCity 311
9/30/20252707 W HADDON AVEWest Town36Completed6 daysPhone CallCity 311
8/31/20252457 W HADDON AVEWest Town36Completed10 daysPhone CallCity 311
8/22/20251518 N TRIPP AVEHumboldt Park36Completed3 daysPhone CallCity 311
9/27/20252709 W HADDON AVEWest Town36Completed9 daysPhone CallCity 311
8/28/2026931 N WINCHESTER AVEWest Town36Completed13 daysInternetCity 311
9/23/20252550 W HADDON AVEWest Town36Completed10 daysInternetCity 311
10/26/20263700 N SACRAMENTO AVEIrving Park35Open—InternetCity 311
8/26/20252130 N KEDZIE AVELogan Square35Completed10 daysAlderman's OfficeCity 311
8/25/20253300 W PALMER STLogan Square35Completed11 daysInternetCity 311
8/21/20253533 W SHAKESPEARELogan Square35Completed15 daysSalesforce Mobile AppCity 311
8/23/20253670 N ELSTON AVEIrving Park35Completed11 daysInternetCity 311
8/24/20253649 N KIMBALL AVEIrving Park35Completed10 daysMobile DeviceCity 311
8/20/20253943 N MOZART STIrving Park35Completed13 daysInternetCity 311
8/20/20252829 N MOZART STAvondale35Completed14 daysMobile DeviceCity 311
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