RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4630 locations in the last 30 days (4780 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/2/20255134 W CULLOM AVEPortage Park45Completed10 daysInternetCity 311
9/2/20251834 N DAMEN AVELogan Square32Completed9 daysMobile DeviceCity 311
9/2/20255007 W CRYSTAL STAustin37Completed9 daysAlderman's OfficeCity 311
9/2/20252235 S HAMLIN AVESouth Lawndale22Completed10 daysPhone CallCity 311
9/2/20255627 N KENNETH AVEForest Glen39Completed13 daysPhone CallCity 311
9/2/20259959 S ESCANABA AVESouth Deering10Completed7 daysPhone CallCity 311
9/2/2025300 W 31ST STArmour Square11Completed9 daysAlderman's OfficeCity 311
9/2/20251728 N DAYTON STLincoln Park43Completed10 daysPhone CallCity 311
9/2/20254201 S MAPLEWOOD AVEBrighton Park12Completed9 daysInternetCity 311
9/2/20253443 S WALLACE STBridgeport11Completed9 daysInternetCity 311
9/2/20258453 S MANISTEE AVESouth Chicago7Completed9 daysAlderman's OfficeCity 311
9/2/2025652 E BOWEN AVEGrand Boulevard4Completed2 daysMobile DeviceCity 311
9/2/20251433 W ELMDALE AVEEdgewater48Completed13 daysMobile DeviceCity 311
9/2/20255644 N SPAULDING AVENorth Park39Completed8 daysMobile DeviceCity 311
9/2/20254738 N LINCOLN AVELincoln Square47Completed10 daysInternetCity 311
9/2/20253934 W OHIO STHumboldt Park37Completed9 daysPhone CallCity 311
9/2/20256011 N NAGLE AVENorwood Park39Completed13 daysInternetCity 311
9/2/202543 E 103RD PLRoseland9Completed8 daysAlderman's OfficeCity 311
9/2/20256214 W 64TH STClearing13Completed13 daysAlderman's OfficeCity 311
9/2/20255511 N NORMANDY AVENorwood Park41Completed10 daysInternetCity 311
9/2/20253325 S LOWE AVEBridgeport11Completed9 daysPhone CallCity 311
9/2/20256648 N CAMPBELL AVEWest Ridge50Completed9 daysPhone CallCity 311
9/2/20254039 W MARQUETTE RDWest Lawn23Completed13 daysPhone CallCity 311
9/2/20255028 N MOBILE AVEJefferson Park41Completed10 daysAlderman's OfficeCity 311
9/2/20252545 S CENTRAL PARK AVESouth Lawndale22Completed10 daysAlderman's OfficeCity 311
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