RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4223 locations in the last 30 days (4379 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/30/20257944 S ELIZABETH STAuburn Gresham17Completed8 daysPhone CallCity 311
9/30/2025927 W LELAND AVEUptown46Completed7 daysPhone CallCity 311
9/30/20256040 N TROY STWest Ridge50Completed9 daysInternetCity 311
9/30/20258213 S MARSHFIELD AVEAuburn Gresham17Completed8 daysPhone CallCity 311
9/30/20251841 N KARLOV AVEHermosa26Completed1 dayMobile DeviceCity 311
9/30/20255336 N WAYNE AVEEdgewater48Completed3 daysPhone CallCity 311
9/30/20259618 S WENTWORTH AVERoseland9Completed7 daysPhone CallCity 311
9/30/20254335 S MOZART STBrighton Park12Completed7 daysPhone CallCity 311
9/30/20256800 W HIGGINS AVENorwood Park41Completed7 daysMobile DeviceCity 311
9/30/20255727 N JERSEY AVENorth Park39Completed1 dayPhone CallCity 311
9/30/20255725 N JERSEY AVENorth Park39Completed1 dayPhone CallCity 311
9/30/20254543 N LOWELL AVEIrving Park39Completed1 dayPhone CallCity 311
9/30/20255755 W EASTWOOD AVEPortage Park38Completed8 daysInternetCity 311
9/30/20252853 W FARRAGUT AVELincoln Square39Completed1 dayPhone CallCity 311
9/30/20257627 N ROGERS AVERogers Park49Completed1 dayPhone CallCity 311
9/30/20252432 W CORTEZ STWest Town36Completed7 daysPhone CallCity 311
9/30/20257615 N BOSWORTH AVERogers Park49Completed1 dayPhone CallCity 311
9/30/20251353 N LATROBE AVEAustin37Completed2 daysPhone CallCity 311
9/30/20253455 N ORANGE AVEDunning38Completed3 daysMobile DeviceCity 311
9/30/20252728 S KILDARE AVESouth Lawndale22Completed3 daysInternetCity 311
9/30/20259630 S CLAREMONT AVEBeverly19Completed7 daysAlderman's OfficeCity 311
9/30/20252727 W HOWARD STWest Ridge50Completed9 daysAlderman's OfficeCity 311
9/30/2025531 W ADDISON STLake View46Completed7 daysInternetCity 311
9/30/202531 N MENARD AVEAustin29Completed2 daysPhone CallCity 311
9/30/20255620 W SUNNYSIDE AVEPortage Park38Completed8 daysAlderman's OfficeCity 311
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