RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4458 locations in the last 30 days (4617 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.

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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

53,164 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/6/202511336 S INDIANA AVERoseland9Completed14 daysAlderman's OfficeCity 311
8/6/20256715 N DOWAGIAC AVEForest Glen45Completed12 daysAlderman's OfficeCity 311
8/6/20252226 W MONROE STNear West Side27Completed9 daysMobile DeviceCity 311
8/6/20252242 W MONROE STNear West Side27Completed9 daysMobile DeviceCity 311
8/6/20253504 W HIRSCH STHumboldt Park26Completed6 daysMobile DeviceCity 311
8/6/20255058 W CHICAGO AVEAustin37Completed13 daysAlderman's OfficeCity 311
8/6/20258555 S INGLESIDE AVEChatham8Completed5 daysPhone CallCity 311
8/6/2025345 W 42ND PLFuller Park3Completed7 daysPhone CallCity 311
8/6/20252848 N LOWELL AVEHermosa31Completed14 daysInternetCity 311
8/6/20257318 N GREENVIEW AVERogers Park49Completed8 daysInternetCity 311
8/6/20254330 N TROY STIrving Park33Completed12 daysMobile DeviceCity 311
8/6/2025352 W WISCONSIN STLincoln Park43Completed13 daysMobile DeviceCity 311
8/6/20251600 S KEDVALE AVENorth Lawndale24Completed8 daysAlderman's OfficeCity 311
8/6/20257410 N WASHTENAW AVEWest Ridge50Completed8 daysMobile DeviceCity 311
8/6/20251711 W CARMEN AVEUptown40Completed6 daysPhone CallCity 311
8/6/20253511 W 26TH STSouth Lawndale22Completed8 daysMobile DeviceCity 311
8/6/20254443 W MONTROSE AVEIrving Park39Completed12 daysInternetCity 311
8/6/20251625 E 85TH PLAvalon Park8Completed5 daysInternetCity 311
8/6/20256131 N HAMILTON AVEWest Ridge40Completed7 daysMobile DeviceCity 311
8/6/202510114 S INDIANA AVERoseland9Completed9 daysMobile DeviceCity 311
8/6/20252422 W BRYN MAWR AVEWest Ridge40Completed7 daysInternetCity 311
8/6/20252701 W HADDON AVEWest Town36Completed16 daysInternetCity 311
8/6/20252701 W HADDON AVEWest Town36Completed16 daysPhone CallCity 311
8/6/20252629 W CHICAGO AVEWest Town36Completed15 daysInternetCity 311
8/6/20251142 N WOOD STWest Town1Completed9 daysMobile DeviceCity 311
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