RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4613 locations in the last 30 days (4767 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

54,983 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/27/20252545 W CATALPA AVELincoln Square40Completed15 daysInternetCity 311
8/27/20255638 W GUNNISON STJefferson Park45Completed12 daysInternetCity 311
8/27/20258128 S EMERALD AVEAuburn Gresham6Completed2 daysAlderman's OfficeCity 311
8/27/20258235 S DREXEL AVEChatham8Completed6 daysPhone CallCity 311
8/27/202524 W ERIE STNear North Side42Completed6 daysInternetCity 311
8/27/20255236 N OLCOTT AVENorwood Park41Completed9 daysInternetCity 311
8/27/20252655 N OAK PARK AVEMontclare36Completed7 daysMobile DeviceCity 311
8/27/20256600 W WELLINGTON AVEMontclare36Completed9 daysPhone CallCity 311
8/27/20257805 S PEORIA STAuburn Gresham17Completed13 daysAlderman's OfficeCity 311
8/27/20257805 S PEORIA STAuburn Gresham17Completed13 daysAlderman's OfficeCity 311
8/27/2025444 W 45TH STNew City15Completed13 daysMobile DeviceCity 311
8/27/20252949 N ASHLAND AVELake View32Completed12 daysInternetCity 311
8/27/20257434 S CHAPPEL AVESouth Shore7Completed14 daysPhone CallCity 311
8/27/20254445 S WALLACE STNew City15Completed13 daysMobile DeviceCity 311
8/27/20255727 N JERSEY AVENorth Park39Completed13 daysInternetCity 311
8/27/20253637 N LARAMIE AVEPortage Park30Completed12 daysMobile DeviceCity 311
8/27/20252331 W WILCOX STNear West Side27Completed13 daysInternetCity 311
8/27/20251900 N OAKLEY AVELogan Square32Completed12 daysInternetCity 311
8/27/2025610 S OAKLEY BLVDNear West Side28Completed13 daysPhone CallCity 311
8/27/202550 E WASHINGTON STLoop34Completed6 daysInternetCity 311
8/27/2025811 S WESTERN AVENear West Side28Completed13 daysPhone CallCity 311
8/27/20255213 S CENTRAL AVEGarfield Ridge23Completed8 daysPhone CallCity 311
8/27/20253242 W BELLE PLAINE AVEIrving Park33Completed9 daysMobile DeviceCity 311
8/27/20254127 W WILCOX STWest Garfield Park28Completed13 daysMobile DeviceCity 311
8/27/20255213 S CENTRAL AVEGarfield Ridge23Completed8 daysPhone CallCity 311
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