RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4617 locations in the last 30 days (4764 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.

32080fewer → more

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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/19/20255810 S KILBOURN AVEWest Elsdon13Completed12 daysAlderman's OfficeCity 311
8/14/2025642 W BELDEN AVELincoln Park43Completed12 daysMobile DeviceCity 311
9/4/20255825 W PATTERSON AVEPortage Park38Completed12 daysMobile DeviceCity 311
9/13/20262057 N OAKLEY AVELogan Square32Completed12 daysInternetCity 311
8/5/20263935 N SAWYER AVEIrving Park33Completed12 daysInternetCity 311
7/31/20265851 W DIVERSEY AVEBelmont Cragin30Completed12 daysPhone CallCity 311
9/25/20261117 N CENTRAL PARK AVEHumboldt Park36Completed12 daysPhone CallCity 311
9/6/20252642 N LECLAIRE AVEBelmont Cragin31Completed12 daysMobile DeviceCity 311
9/18/20253320 W FULTON STEast Garfield Park28Completed12 daysAlderman's OfficeCity 311
9/24/20265140 W WRIGHTWOOD AVEBelmont Cragin31Completed12 daysInternetCity 311
8/9/20265049 N WINCHESTER AVELincoln Square40Completed12 daysPhone CallCity 311
8/2/20253144 N MONTICELLO AVEAvondale35Completed12 daysMobile DeviceCity 311
7/9/20266235 S MAJOR AVEClearing13Completed12 daysMobile DeviceCity 311
9/4/20253050 N OAKLEY AVENorth Center32Completed12 daysInternetCity 311
8/1/20262054 W 19TH STLower West Side25Completed12 daysMobile DeviceCity 311
8/28/20251029 N RIDGEWAY AVEHumboldt Park27Completed12 daysMobile DeviceCity 311
9/6/20251538 W FRY STWest Town1Completed12 daysPhone CallCity 311
7/31/20252736 N SOUTHPORT AVELincoln Park32Completed12 daysInternetCity 311
7/24/20251044 W DIVERSEY PKWYLake View44Completed12 daysInternetCity 311
8/30/20267153 W IRVING PARK RDDunning38Completed12 daysMobile DeviceCity 311
9/5/20251917 W GRANVILLE AVEWest Ridge40Completed12 daysInternetCity 311
8/29/20255022 N KILDARE AVEAlbany Park39Completed12 daysInternetCity 311
7/25/20263135 N OAK PARK AVEMontclare36Completed12 daysInternetCity 311
9/19/20266833 S CRANDON AVESouth Shore5Completed12 daysInternetCity 311
9/3/20252224 W CERMAK RDLower West Side25Completed12 daysAlderman's OfficeCity 311
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