RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4780 reports) · Last sighting 12 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

55,474 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/14/2025349 W 28TH PLArmour Square11Completed1 dayPhone CallCity 311
2/12/20261631 N CLAREMONT AVEWest Town32Completed1 dayPhone CallCity 311
11/17/20253612 S EMERALD AVEBridgeport11Completed1 dayPhone CallCity 311
9/8/20253939 N NORDICA AVEDunning38Completed1 dayPhone CallCity 311
4/15/20264039 N PONTIAC AVEDunning38Completed1 dayPhone CallCity 311
8/6/20254940 W WINONA STForest Glen45Completed1 dayPhone CallCity 311
11/18/20252236 N KEDVALE AVEHermosa35Completed1 dayPhone CallCity 311
1/13/2026400 W 95THWashington Heights9Completed1 daySalesforce Mobile AppCity 311
4/23/20262935 W WALTON STWest Town26Completed1 dayPhone CallCity 311
1/6/20261125 W GRACE STLake View44Completed1 dayPhone CallCity 311
6/8/20264524 N TROY STAlbany Park33Completed1 dayPhone CallCity 311
4/30/20262053 N KARLOV AVEHermosa26Completed1 dayPhone CallCity 311
6/3/20262343 S WENTWORTH AVEArmour Square11Completed1 dayAlderman's OfficeCity 311
10/28/20251047 N LARAMIE AVEAustin37Completed1 dayPhone CallCity 311
6/2/20264451 N SAWYER AVEAlbany Park33Completed1 dayPhone CallCity 311
2/9/20261920 N HUMBOLDT BLVDLogan Square26Completed1 dayMobile DeviceCity 311
10/27/2025249 W 27TH STArmour Square11Completed1 dayInternetCity 311
4/15/20263808 N PINE GROVE AVELake View46Completed1 dayMobile DeviceCity 311
12/23/20253614 N SEELEY AVENorth Center47Completed1 dayPhone CallCity 311
1/13/20266137 N TALMAN AVEWest Ridge40Completed1 dayPhone CallCity 311
3/4/20265713 W EDDY STPortage Park30Completed1 dayMobile DeviceCity 311
1/22/20263041 S SHIELDS AVEArmour Square11Completed1 dayPhone CallCity 311
8/27/20254100 W CERMAK RDNorth Lawndale24Completed1 dayPhone CallCity 311
4/15/20264039 N PONTIAC AVEDunning38Completed1 dayPhone CallCity 311
9/30/20268438 S CARPENTER STAuburn Gresham17Completed1 dayPhone CallCity 311
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