RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4548 locations in the last 30 days (4695 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20256049 W MELROSE STDunning30Completed12 daysPhone CallCity 311
9/10/20254733 N LINCOLN AVELincoln Square47Completed9 daysAlderman's OfficeCity 311
9/10/202539 E CHICAGO RIVERLoop42Completed0 daysSalesforce Mobile AppCity 311
9/10/20251423 W CUYLER AVELake View47Completed9 daysPhone CallCity 311
9/10/20254701 N LAWNDALE AVEAlbany Park33Completed8 daysPhone CallCity 311
9/10/20252144 W GLADYS AVENear West Side27Completed9 daysPhone CallCity 311
9/10/20251525 S HARDING AVENorth Lawndale24Completed7 daysInternetCity 311
9/10/20255936 N CHRISTIANA AVENorth Park39Completed9 daysPhone CallCity 311
9/10/20252218 N LAMON AVEBelmont Cragin26Completed13 daysMobile DeviceCity 311
9/10/20253713 N JANSSEN AVELake View44Completed13 daysMobile DeviceCity 311
9/10/20252368 N ELSTON AVELogan Square32Completed12 daysPhone CallCity 311
9/10/202511731 S LOWE AVEWest Pullman21Completed12 daysPhone CallCity 311
9/10/20255947 S SACRAMENTO AVEChicago Lawn15Completed8 daysInternetCity 311
9/10/20252601 W NORTH AVEWest Town26Completed13 daysMobile DeviceCity 311
9/10/202510222 S STATE STRoseland9Completed7 daysAlderman's OfficeCity 311
9/10/20256035 W 55TH STGarfield Ridge13Completed12 daysInternetCity 311
9/10/20254857 N HAMLIN AVEAlbany Park33Completed8 daysInternetCity 311
9/10/20255439 N NEWLAND AVENorwood Park41Completed7 daysMobile DeviceCity 311
9/10/20254723 N PAULINA STUptown47Completed9 daysAlderman's OfficeCity 311
9/10/20252242 N CLEVELAND AVELincoln Park43Completed9 daysAlderman's OfficeCity 311
9/10/20255153 S KILDARE AVEArcher Heights23Completed12 daysMobile DeviceCity 311
9/10/202510748 S ALBANY AVEMount Greenwood19Completed13 daysAlderman's OfficeCity 311
9/10/2025800 W LILL AVELincoln Park43Completed5 daysAlderman's OfficeCity 311
9/10/20254030 N TROY STIrving Park33Completed9 daysInternetCity 311
9/10/20253126 N BERNARD STAvondale35Completed9 daysPhone CallCity 311
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