RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4697 locations in the last 30 days (4847 reports) · Last sighting 15 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.

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
4/6/2026859 N HERMITAGE AVEWest Town1Completed1 dayInternetCity 311
11/4/20255616 S KARLOV AVEWest Elsdon13Completed1 dayPhone CallCity 311
1/19/20261625 E 74TH STSouth Shore8Completed1 dayPhone CallCity 311
5/6/20262896 S ARCHER AVEBridgeport11Completed1 dayMobile DeviceCity 311
10/8/20251105 S INDEPENDENCE BLVDNorth Lawndale24Completed1 dayPhone CallCity 311
12/10/20254351 N CAMPBELL AVENorth Center47Completed1 dayMobile DeviceCity 311
2/25/20266943 W DIVERSEY AVEMontclare36Completed1 dayMobile DeviceCity 311
11/4/20255717 S MOODY AVEGarfield Ridge13Completed1 dayAlderman's OfficeCity 311
2/10/20262896 S ARCHER AVEBridgeport11Completed1 dayMobile DeviceCity 311
2/19/2026807 W BUCKINGHAM PLLake View44Completed1 dayInternetCity 311
5/26/20266910 N SHERIDAN RDRogers Park49Completed1 dayMobile DeviceCity 311
5/6/20261125 W 31ST STBridgeport11Completed1 dayMobile DeviceCity 311
5/12/20263020 W 53RD PLGage Park14Completed1 dayPhone CallCity 311
4/15/20262451 N ROCKWELL STLogan Square1Completed1 dayPhone CallCity 311
5/12/20264137 N MARMORA AVEPortage Park38Completed1 dayPhone CallCity 311
3/18/20263937 W 64TH PLWest Lawn23Completed1 dayPhone CallCity 311
4/14/20261656 N ARTESIAN AVEWest Town1Completed1 dayPhone CallCity 311
3/31/20263239 N OSAGE AVEDunning38Completed1 dayPhone CallCity 311
1/19/20261633 E 74TH STSouth Shore8Completed1 dayPhone CallCity 311
4/28/20265065 N WINCHESTER AVELincoln Square40Completed1 dayMobile DeviceCity 311
3/22/20268634 S MAY STAuburn Gresham17Completed1 dayPhone CallCity 311
2/10/20266243 N TALMAN AVEWest Ridge50Completed1 dayPhone CallCity 311
3/30/20261654 N KARLOV AVEHumboldt Park26Completed1 dayPhone CallCity 311
1/5/2026255 W SWANN STFuller Park20Completed1 dayPhone CallCity 311
8/4/20265035 W POTOMAC AVEAustin37Completed1 dayInternetCity 311
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