RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4512 locations in the last 30 days (4667 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.

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

53,552 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/9/20252311 W WASHINGTON BLVDNear West Side27Completed11 daysPhone CallCity 311
8/9/20255055 N MELVINA AVEJefferson Park45Completed11 daysMobile DeviceCity 311
8/9/20253941 W 64TH STWest Lawn23Completed11 daysMobile DeviceCity 311
8/9/20255852 S PRAIRIE AVEWashington Park20Completed5 daysMobile DeviceCity 311
8/9/20257417 S EMERALD AVEEnglewood17Completed6 daysPhone CallCity 311
8/9/20253542 N FREMONT STLake View44Completed11 daysMobile DeviceCity 311
8/9/2025842 S ADA STNear West Side28Completed6 daysMobile DeviceCity 311
8/9/20253039 N KOSTNER AVEHermosa31Completed11 daysInternetCity 311
8/9/20254334 W ARMITAGE AVEHermosa35Completed11 daysInternetCity 311
8/9/20255209 W HUTCHINSON STPortage Park38Completed11 daysMobile DeviceCity 311
8/9/202510739 S MILLARD AVEMount Greenwood19Completed4 daysPhone CallCity 311
8/9/20255050 W ADAMS STAustin28Completed6 daysInternetCity 311
8/9/20256907 N CLARK STRogers Park49Completed9 daysInternetCity 311
8/9/20257126 S WASHTENAW AVEChicago Lawn17Completed11 daysPhone CallCity 311
8/9/20255616 W 64TH PLClearing13Completed11 daysMobile DeviceCity 311
8/9/2025917 N RIDGEWAY AVEHumboldt Park27Completed11 daysMobile DeviceCity 311
8/9/20251939 W WELLINGTON AVENorth Center32Completed12 daysInternetCity 311
8/9/20253648 N LARAMIE AVEPortage Park30Completed12 daysMobile DeviceCity 311
8/9/20252246 N LA CROSSE AVEBelmont Cragin26Completed5 daysMobile DeviceCity 311
8/9/20251737 N NATOMA AVEAustin29Completed6 daysInternetCity 311
8/9/20251230 W 112TH PLMorgan Park21Completed10 daysPhone CallCity 311
8/9/20256136 W HENDERSON STDunning30Completed12 daysMobile DeviceCity 311
8/9/20254723 S ELIZABETH STNew City20Completed5 daysPhone CallCity 311
8/9/20253056 N RACINE AVELake View32Completed12 daysPhone CallCity 311
8/9/20252044 W HURON STWest Town36Completed12 daysPhone CallCity 311
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