RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4150 locations in the last 30 days (4294 reports) · Last sighting 3 days 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/27/20253215 W OLIVE AVENorth Park39Completed6 daysInternetCity 311
9/27/2025836 N LARAMIE AVEAustin37Completed5 daysMobile DeviceCity 311
9/27/20251644 N MOZART STWest Town26Completed9 daysInternetCity 311
9/27/20251118 N LAWNDALE AVEHumboldt Park27Completed9 daysInternetCity 311
9/27/20258949 S COMMERCIAL AVESouth Chicago10Completed4 daysPhone CallCity 311
9/27/20256410 W RAVEN STNorwood Park45Completed10 daysInternetCity 311
9/27/202510028 S STATE STRoseland9Completed10 daysMobile DeviceCity 311
9/27/20255541 N CALIFORNIA AVELincoln Square40Completed9 daysInternetCity 311
9/27/20255242 W CORNELIA AVEPortage Park31Completed5 daysMobile DeviceCity 311
9/27/20255905 W 64TH STClearing13Completed12 daysInternetCity 311
9/27/20257227 W HOOD AVENorwood Park41Completed10 daysInternetCity 311
9/27/20257415 S UNION AVEEnglewood17Completed9 daysInternetCity 311
9/27/20252427 W 34TH PLMcKinley Park12Completed10 daysPhone CallCity 311
9/27/20255321 S UNION AVENew City16Completed9 daysInternetCity 311
9/27/20251430 W HURON STWest Town27Completed3 daysPhone CallCity 311
9/27/20252543 N NEWCASTLE AVEMontclare36Completed9 daysMobile DeviceCity 311
9/27/20256638 S FAIRFIELD AVEChicago Lawn16Completed11 daysInternetCity 311
9/27/202510609 S CALUMET AVERoseland9Completed10 daysInternetCity 311
9/27/20252320 W 21ST STLower West Side25Completed9 daysMobile DeviceCity 311
9/27/20252103 N LOREL AVEBelmont Cragin36Completed9 daysMobile DeviceCity 311
9/27/20251502 W WILSON AVEUptown47Completed9 daysMobile DeviceCity 311
9/27/20251805 S KILDARE AVENorth Lawndale24Completed9 daysMobile DeviceCity 311
9/27/20254832 N SPAULDING AVEAlbany Park33Completed9 daysInternetCity 311
9/27/20253915 N KEDZIE AVEIrving Park33Completed9 daysInternetCity 311
9/27/20256641 N NEWGARD AVERogers Park49Completed10 daysMobile DeviceCity 311
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