RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4570 locations in the last 30 days (4717 reports) · Last sighting 20 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
8/3/20262840 W FOSTER AVELincoln Square39Completed11 daysPhone CallCity 311
8/30/20263671 N ELSTON AVEIrving Park33Completed11 daysMobile DeviceCity 311
8/13/20263500 N FREMONT STLake View44Completed11 daysMobile DeviceCity 311
9/19/2026432 E 48TH PLGrand Boulevard3Completed11 daysPhone CallCity 311
9/13/20264544 N MAGNOLIA AVEUptown46Completed11 daysMobile DeviceCity 311
9/25/2026515 W ARLINGTON PLLincoln Park43Completed11 daysPhone CallCity 311
8/15/20256219 N HERMITAGE AVEEdgewater40Completed11 daysInternetCity 311
9/20/20251750 W GRACE STLake View47Completed11 daysInternetCity 311
8/13/20253522 W DIVERSEY AVEAvondale35Completed11 daysMobile DeviceCity 311
9/13/20265422 N PAULINA STEdgewater40Completed11 daysMobile DeviceCity 311
8/23/20264139 W 70TH STWest Lawn23Completed11 daysMobile DeviceCity 311
9/10/20251508 W SUPERIOR STWest Town1Completed11 daysInternetCity 311
7/31/20252955 N MERRIMAC AVEBelmont Cragin30Completed11 daysInternetCity 311
7/1/20262534 W 45TH PLBrighton Park15Completed11 daysMobile DeviceCity 311
9/4/20253428 N LEAVITT STNorth Center32Completed11 daysInternetCity 311
7/30/20261119 W 17TH STLower West Side25Completed11 daysPhone CallCity 311
8/2/20259558 S CLAREMONT AVEBeverly19Completed11 daysPhone CallCity 311
8/2/20251823 W SUPERIOR STWest Town36Completed11 daysMobile DeviceCity 311
7/25/20261309 N GREENVIEW AVEWest Town1Completed11 daysMobile DeviceCity 311
9/12/20267218 S PERRY AVEGreater Grand Crossing6Completed11 daysInternetCity 311
9/4/20255601 S ELIZABETH STWest Englewood16Completed11 daysInternetCity 311
7/17/20261541 N KEYSTONE AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
10/9/20253928 W 57TH STWest Elsdon23Completed11 daysPhone CallCity 311
7/24/20251526 S SPRINGFIELD AVENorth Lawndale24Completed11 daysMobile DeviceCity 311
7/30/20262534 N BURLING STLincoln Park43Completed11 daysInternetCity 311
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