RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4631 locations in the last 30 days (4781 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
10/20/20255936 S MICHIGAN AVEWashington Park20Completed1 dayPhone CallCity 311
1/14/20268109 S DORCHESTER AVEAvalon Park8Completed1 dayPhone CallCity 311
11/20/20251851 W 51ST STNew City16Completed1 dayMobile DeviceCity 311
9/29/20251436 W LEXINGTON STNear West Side34Completed1 dayAlderman's OfficeCity 311
3/26/20261936 N KENNETH AVEHermosa26Completed1 dayAlderman's OfficeCity 311
11/19/20255700 W NEWPORT AVEPortage Park30Completed1 dayAlderman's OfficeCity 311
9/24/20252638 W NORTH SHORE AVEWest Ridge50Completed1 dayPhone CallCity 311
2/18/20261025 N TRUMBULL AVEHumboldt Park36Completed1 dayPhone CallCity 311
10/7/20252206 N KEDVALE AVEHermosa35Completed1 dayPhone CallCity 311
1/5/20263816 N PACIFIC AVEDunning38Completed1 dayInternetCity 311
12/15/20257841 W FARRAGUT AVENorwood Park41Completed1 dayInternetCity 311
4/13/20261526 W CULLERTON STLower West Side25Completed1 dayPhone CallCity 311
12/29/20255616 N NOTTINGHAM AVENorwood Park41Completed1 dayPhone CallCity 311
8/28/2025924 W CULLOM AVEUptown46Completed1 dayPhone CallCity 311
2/24/20265145 N ASHLAND AVEUptown40Completed1 dayMobile DeviceCity 311
5/11/20265252 N LUDLAM AVEJefferson Park45Completed1 dayPhone CallCity 311
2/3/20265331 W NEWPORT AVEPortage Park30Completed1 dayPhone CallCity 311
12/11/20256620 W IMLAY STNorwood Park41Completed1 dayMobile DeviceCity 311
4/20/20265110 S KENWOOD AVEHyde Park4Completed1 dayInternetCity 311
10/7/20253733 N GREENVIEW AVELake View44Completed1 dayPhone CallCity 311
12/2/20255125 S NEWLAND AVEGarfield Ridge23Completed1 dayPhone CallCity 311
11/30/20253008 W ADDISON STIrving Park35Completed1 dayMobile DeviceCity 311
4/19/20262922 S WALLACE STBridgeport11Completed1 dayPhone CallCity 311
7/13/20264741 N PAULINA STUptown47Completed1 dayInternetCity 311
3/5/20262631 W GREGORY STLincoln Square40Completed1 dayInternetCity 311
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