RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4647 locations in the last 30 days (4795 reports) · Last sighting 12 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/8/20252138 W 83RD STAuburn Gresham18Completed8 daysPhone CallCity 311
9/8/20255345 N VIRGINIA AVELincoln Square39Completed10 daysAlderman's OfficeCity 311
9/8/20254928 N LOWELL AVEAlbany Park39Completed10 daysAlderman's OfficeCity 311
9/8/20253000 N MENARD AVEBelmont Cragin30Completed11 daysAlderman's OfficeCity 311
9/8/20253004 N MENARD AVEBelmont Cragin30Completed11 daysAlderman's OfficeCity 311
9/8/20253504 N OCTAVIA AVEDunning38Completed9 daysAlderman's OfficeCity 311
9/8/20254828 S DR MARTIN LUTHER KING JR DRGrand Boulevard3Completed10 daysMobile DeviceCity 311
9/8/20255116 W BLOOMINGDALE AVEAustin37Completed9 daysPhone CallCity 311
9/8/20256335 W MONTROSE AVEPortage Park38Completed8 daysMobile DeviceCity 311
9/8/20251917 S ST LOUIS AVENorth Lawndale24Completed9 daysPhone CallCity 311
9/8/20256540 N CLARK STRogers Park40Completed11 daysInternetCity 311
9/8/20252858 W 25TH PLSouth Lawndale24Completed9 daysPhone CallCity 311
9/8/20252315 W SCHOOL STNorth Center32Completed9 daysMobile DeviceCity 311
9/8/20253046 N HAUSSEN CTAvondale31Completed11 daysPhone CallCity 311
9/8/20256046 W CORNELIA AVEDunning30Completed11 daysMobile DeviceCity 311
9/8/202510903 S HALE AVEMorgan Park19Completed9 daysPhone CallCity 311
9/8/20253654 N SOUTHPORT AVELake View44Completed3 daysMobile DeviceCity 311
9/8/20252912 N LOWELL AVEHermosa31Completed11 daysAlderman's OfficeCity 311
9/8/20253365 S INDIANA AVEDouglas3Completed10 daysAlderman's OfficeCity 311
9/8/20253026 S HOMAN AVESouth Lawndale22Completed10 daysInternetCity 311
9/8/20258100 S MERRILL AVESouth Chicago8Completed7 daysPhone CallCity 311
9/8/20251907 N KENNETH AVEHermosa26Completed11 daysPhone CallCity 311
9/8/202511101 S WASHTENAW AVEMorgan Park19Completed9 daysAlderman's OfficeCity 311
9/8/20254821 N MONT CLARE AVENorwood Park41Completed7 daysAlderman's OfficeCity 311
9/8/20254700 W FLOURNOY STAustin24Completed9 daysAlderman's OfficeCity 311
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