RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4614 locations in the last 30 days (4774 reports) · Last sighting 19 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

54,128 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/15/202511018 S HARDING AVEMount Greenwood19Completed12 daysAlderman's OfficeCity 311
8/15/2025516 W 97TH STWashington Heights9Completed12 daysInternetCity 311
8/15/2025935 W 114TH PLMorgan Park21Completed14 daysInternetCity 311
8/15/20256200 W MELROSE STDunning30Completed6 daysAlderman's OfficeCity 311
8/15/20251112 W 115TH STMorgan Park21Completed14 daysInternetCity 311
8/15/202511406 S THROOP STMorgan Park21Completed14 daysInternetCity 311
8/15/20253548 W SHAKESPEARE AVELogan Square35Completed10 daysInternetCity 311
8/15/202511711 S CHURCH STMorgan Park19Completed12 daysInternetCity 311
8/15/202512800 S UNION AVEWest Pullman9Completed12 daysInternetCity 311
8/15/202512808 S MARQUETTE AVEHegewisch10Completed4 daysInternetCity 311
8/15/202513515 S MACKINAW AVEHegewisch10Completed4 daysInternetCity 311
8/15/20259618 S MEast Side10Completed4 daysInternetCity 311
8/15/20259808 S EWING AVEEast Side10Completed4 daysInternetCity 311
8/15/202510010 S VERNON AVERoseland9Completed12 daysInternetCity 311
8/15/202510059 S FOREST AVERoseland9Completed12 daysInternetCity 311
8/15/202510439 S HEast Side10Completed4 daysInternetCity 311
8/15/20251615 W CHICAGO AVEWest Town1Completed10 daysMobile DeviceCity 311
8/15/20253846 N TROY STIrving Park33Completed10 daysInternetCity 311
8/15/20253412 N KILBOURN AVEIrving Park30Completed11 daysPhone CallCity 311
8/15/20255146 S DR MARTIN LUTHER KING JR DRWashington Park3Completed3 daysInternetCity 311
8/15/20253840 N TROY STIrving Park33Completed10 daysInternetCity 311
8/15/20251959 N SEMINARY AVELincoln Park43Completed10 daysAlderman's OfficeCity 311
8/15/20254951 N KIMBALL AVEAlbany Park33Completed12 daysAlderman's OfficeCity 311
8/15/20259319 S CREGIER AVECalumet Heights8Completed11 daysPhone CallCity 311
8/15/20255337 N LATROBE AVEJefferson Park45Completed10 daysPhone CallCity 311
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