RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4575 locations in the last 30 days (4723 reports) · Last sighting 16 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

55,547 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
3/29/2026832 N MARSHFIELD AVEWest Town1Completed1 dayMobile DeviceCity 311
6/17/20264668 N KASSON AVEAlbany Park39Completed1 dayInternetCity 311
4/30/20263710 N HOYNE AVENorth Center47Completed1 dayInternetCity 311
2/10/20262918 S LOWE AVEBridgeport11Completed1 dayMobile DeviceCity 311
8/7/20251521 S HARDING AVENorth Lawndale24Completed1 dayPhone CallCity 311
4/22/20262028 W IRVING PARK RDNorth Center47Completed1 dayMobile DeviceCity 311
12/17/20251126 E 76TH STGreater Grand Crossing8Completed1 dayInternetCity 311
2/19/20263101 N RIDGEWAY AVEAvondale35Completed1 dayPhone CallCity 311
6/24/2026539 W 45TH PLNew City15Completed1 dayMobile DeviceCity 311
2/18/20264048 N WESTERN AVENorth Center47Completed1 dayInternetCity 311
7/31/20255934 N DRAKE AVENorth Park39Completed1 dayPhone CallCity 311
11/13/20255100 W DAKIN STPortage Park45Completed1 dayAlderman's OfficeCity 311
10/1/202612439 S UNION AVEWest Pullman9Completed1 dayPhone CallCity 311
4/15/2026538 W 32ND STBridgeport11Completed1 dayAlderman's OfficeCity 311
3/26/20261133 W COLUMBIA AVERogers Park49Completed1 dayInternetCity 311
2/11/20262913 N RICHMOND STAvondale35Completed1 dayMobile DeviceCity 311
2/22/20261910 W CORTLAND STLogan Square32Completed1 dayInternetCity 311
3/3/20266000 W SCHOOL STDunning30Completed1 dayAlderman's OfficeCity 311
11/12/2025207 N LECLAIRE AVEAustin28Completed1 dayPhone CallCity 311
6/15/2026255 W SWANN STFuller Park20Completed1 dayPhone CallCity 311
5/14/20261447 W ROOSEVELT RDNear West Side28Completed1 dayPhone CallCity 311
6/29/202611435 S SAWYER AVEMount Greenwood19Completed1 dayInternetCity 311
4/30/20264417 W JACKSON BLVDWest Garfield Park28Completed1 dayPhone CallCity 311
10/14/20252916 N HARDING AVEAvondale31Completed1 dayPhone CallCity 311
4/8/20265316 N MILWAUKEE AVEJefferson Park45Completed1 dayPhone CallCity 311
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