RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4622 locations in the last 30 days (4803 reports) · Last sighting 12 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.

32080fewer → more

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

58,010 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/30/20255700 N ARTESIAN AVEWest Ridge40Completed3 daysInternetCity 311
10/30/20255035 S ARTESIAN AVEGage Park15Completed3 daysPhone CallCity 311
10/30/2025837 W CORNELIA AVELake View44Completed5 daysMobile DeviceCity 311
10/31/20259329 S MUSKEGON AVECalumet Heights7Completed4 daysMobile DeviceCity 311
10/31/20252033 W SCHOOL STNorth Center32Completed4 daysInternetCity 311
10/31/202510509 S MILLARD AVEMount Greenwood19Completed3 daysInternetCity 311
10/31/20251237 W FOSTER AVEUptown47Completed3 daysInternetCity 311
10/31/20253555 W ADDISON STAvondale35Completed5 daysMobile DeviceCity 311
10/31/20257350 S CARPENTER STEnglewood17Completed4 daysMobile DeviceCity 311
10/31/20254124 W 56TH PLWest Elsdon13Completed4 daysMobile DeviceCity 311
10/31/20252847 W PALMER STLogan Square1Completed4 daysMobile DeviceCity 311
10/31/20253920 W 84TH PLAshburn18Completed4 daysInternetCity 311
10/31/2025436 W POLK STNear West Side28Completed5 daysMobile DeviceCity 311
10/31/20255901 N KENMORE AVEEdgewater48Completed3 daysInternetCity 311
10/31/20252500 N NEW ENGLAND AVEMontclare36Completed3 daysPhone CallCity 311
10/31/20257113 S UNIVERSITY AVEGreater Grand Crossing5Completed3 daysPhone CallCity 311
10/31/2025314 S WESTERN AVENear West Side27Completed4 daysInternetCity 311
10/31/20252732 S BONFIELD STBridgeport11Completed4 daysMobile DeviceCity 311
10/31/20254916 W CORTEZ STAustin37Completed6 daysPhone CallCity 311
10/31/2025530 W 60TH PLEnglewood20Completed3 daysPhone CallCity 311
10/31/2025628 W 44TH STNew City15Completed3 daysMobile DeviceCity 311
10/31/2025532 W 60TH PLEnglewood20Completed3 daysPhone CallCity 311
10/31/2025530 W 60TH PLEnglewood20Completed3 daysPhone CallCity 311
10/31/20255117 W STRONG STJefferson Park45Completed5 daysMobile DeviceCity 311
10/31/20254834 N KARLOV AVEAlbany Park39Completed5 daysPhone CallCity 311
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