RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4405 locations in the last 30 days (4562 reports) · Last sighting 24 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.

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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
9/24/2025956 W MONTANA STLincoln Park43Completed7 daysAlderman's OfficeCity 311
9/24/2025125 E PERSHING RDGrand Boulevard3Completed7 daysPhone CallCity 311
9/24/20254153 W NELSON STAvondale31Completed8 daysMobile DeviceCity 311
9/24/2025900 E 40TH STOakland4Completed8 daysAlderman's OfficeCity 311
9/24/20252021 W DIVISION STWest Town1Completed7 daysInternetCity 311
9/24/2025332 E KENSINGTON AVEWest Pullman9Completed7 daysAlderman's OfficeCity 311
9/24/20251258 W 71ST STWest Englewood17Completed7 daysMobile DeviceCity 311
9/24/20253726 S EMERALD AVEBridgeport11Completed7 daysAlderman's OfficeCity 311
9/24/20252828 N KEDZIE AVEAvondale35Completed9 daysInternetCity 311
9/24/20254423 S CALUMET AVEGrand Boulevard3Completed8 daysPhone CallCity 311
9/24/20254633 S SPRINGFIELD AVEArcher Heights14Completed9 daysAlderman's OfficeCity 311
9/24/202512920 S HOUSTON AVEHegewisch10Completed7 daysPhone CallCity 311
9/24/20254514 N ST LOUIS AVEAlbany Park33Completed8 daysAlderman's OfficeCity 311
9/24/20254819 N OAKLEY AVELincoln Square47Completed9 daysAlderman's OfficeCity 311
9/24/202510829 S CHRISTIANA AVEMount Greenwood19Completed8 daysAlderman's OfficeCity 311
9/24/20251744 W BRYN MAWR AVEEdgewater40Completed8 daysPhone CallCity 311
9/24/20253500 N CLAREMONT AVENorth Center32Completed12 daysPhone CallCity 311
9/24/20253010 S CHRISTIANA AVESouth Lawndale22Completed9 daysMobile DeviceCity 311
9/24/20254908 W BELDEN AVEBelmont Cragin31Completed8 daysAlderman's OfficeCity 311
9/24/20254308 W 59TH STWest Elsdon13Completed12 daysAlderman's OfficeCity 311
9/24/20255632 S KILBOURN AVEWest Elsdon13Completed12 daysAlderman's OfficeCity 311
9/24/20252206 N AVERS AVELogan Square35Completed9 daysPhone CallCity 311
9/24/20252845 N RIDGEWAY AVEAvondale35Completed9 daysPhone CallCity 311
9/24/20256146 N LEGETT AVEForest Glen39Completed6 daysAlderman's OfficeCity 311
9/24/20255620 S NEW ENGLAND AVEGarfield Ridge13Completed12 daysInternetCity 311
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