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
4/14/20261656 N ARTESIAN AVEWest Town1Completed1 dayPhone CallCity 311
3/31/20261656 N ARTESIAN AVEWest Town1Completed1 dayPhone CallCity 311
4/13/20261656 N AVERS AVEHumboldt Park26Completed2 daysPhone CallCity 311
8/18/20251656 N BELL AVEWest Town32Completed11 daysInternetCity 311
11/12/20251656 N BISSELL STLincoln Park43Canceled1 dayPhone CallCity 311
8/1/20261656 N FRANCISCO AVEWest Town26Completed12 daysInternetCity 311
9/30/20251656 N ROCKWELL STWest Town26Completed8 daysInternetCity 311
8/11/20251656 W JARVIS AVERogers Park49Completed7 daysInternetCity 311
6/18/20261656 W JARVIS AVERogers Park49Completed5 daysInternetCity 311
4/15/20261656 W MONTEREY AVEMorgan Park21Completed1 dayInternetCity 311
1/13/20261657 N KEDVALE AVEHumboldt Park26Completed1 dayPhone CallCity 311
8/2/20261657 N KILDARE AVEHumboldt Park26Completed11 daysMobile DeviceCity 311
10/3/20251657 N LOREL AVEAustin37Completed12 daysPhone CallCity 311
9/9/20261657 N LOREL AVEAustin37Completed13 daysPhone CallCity 311
9/26/20251657 N MONITOR AVEAustin29Completed6 daysPhone CallCity 311
10/3/20251657 N MONTICELLO AVEHumboldt Park26Completed12 daysInternetCity 311
5/18/20261657 N MONTICELLO AVEHumboldt Park26Completed4 daysMobile DeviceCity 311
8/16/20261657 N MONTICELLO AVEHumboldt Park26Completed8 daysMobile DeviceCity 311
3/9/20261657 S CENTRAL PARK AVENorth Lawndale24Completed3 daysInternetCity 311
10/24/20251657 W 21ST STLower West Side25Completed4 daysPhone CallCity 311
8/23/20251657 W FARWELL AVERogers Park49Completed10 daysMobile DeviceCity 311
9/24/20251657 W PRATT AVERogers Park49Completed9 daysPhone CallCity 311
6/3/20261657 W WALTER BURLEY GRIFFIN PLBeverly19Completed1 dayPhone CallCity 311
8/3/20261658 N RICHMOND STWest Town26Completed14 daysPhone CallCity 311
6/15/20261658 W BARRY AVELake View32Completed7 daysPhone CallCity 311
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