RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4301 locations in the last 30 days (4460 reports) · Last sighting 17 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.

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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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/28/20251450 W SCHOOL STLake View32Completed8 daysInternetCity 311
9/28/20252412 W THOMAS STWest Town36Completed8 daysInternetCity 311
9/28/20255648 W CORNELIA AVEPortage Park30Completed2 daysMobile DeviceCity 311
9/28/20253519 W SHAKESPEARE AVELogan Square35Completed7 daysMobile DeviceCity 311
9/29/20256101 S NATCHEZ AVEClearing13Completed10 daysMobile DeviceCity 311
9/29/20253035 S BONFIELD STBridgeport11Completed9 daysPhone CallCity 311
9/29/20253056 N RACINE AVELake View32Completed7 daysPhone CallCity 311
9/29/2025628 W ARMITAGE AVELincoln Park43Completed7 daysMobile DeviceCity 311
9/29/20252938 S ARCH STBridgeport11Completed9 daysPhone CallCity 311
9/29/20254340 N KIMBALL AVEIrving Park33Completed7 daysPhone CallCity 311
9/29/202550 W 71ST STGreater Grand Crossing6Completed7 daysPhone CallCity 311
9/29/20253540 E 95TH STEast Side10Completed8 daysPhone CallCity 311
9/29/20251939 N KILBOURN AVEHermosa26Completed7 daysMobile DeviceCity 311
9/29/20255655 N LAKE SHORE DR NBEdgewater48Completed4 daysMobile DeviceCity 311
9/29/20254906 W EDDY STPortage Park31Completed9 daysPhone CallCity 311
9/29/20254728 N SACRAMENTO AVEAlbany Park33Completed3 daysPhone CallCity 311
9/29/20251720 W ERIE STWest Town1Completed1 dayPhone CallCity 311
9/29/20251244 W 72ND STWest Englewood17Completed1 dayPhone CallCity 311
9/29/20252518 W PENSACOLA AVENorth Center47Completed7 daysPhone CallCity 311
9/29/20256831 S ADA STWest Englewood17Completed1 dayPhone CallCity 311
9/29/20253558 W WABANSIA AVEHumboldt Park26Completed9 daysInternetCity 311
9/29/202510889 S RACINE AVEMorgan Park21Completed1 dayPhone CallCity 311
9/29/2025846 N LAWNDALE AVEHumboldt Park27Completed7 daysPhone CallCity 311
9/29/2025850 N LAWNDALE AVEHumboldt Park27Completed7 daysPhone CallCity 311
9/29/2025327 N LAKE SHORE DR NBLoop42Completed1 dayInternetCity 311
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