RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4489 locations in the last 30 days (4638 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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
4/6/20261720 N TRIPP AVEHumboldt Park26Completed1 dayPhone CallCity 311
1/15/20264437 N BROADWAYUptown46Completed1 dayMobile DeviceCity 311
8/25/20256241 N TALMAN AVEWest Ridge50Completed1 dayPhone CallCity 311
6/15/202611801 S BELL AVEMorgan Park19Completed1 dayPhone CallCity 311
2/2/20263346 N HAMLIN AVEAvondale30Completed1 dayPhone CallCity 311
2/19/20266605 S DAMEN AVEWest Englewood16Completed1 dayPhone CallCity 311
11/20/20255040 S CARPENTER STNew City20Completed1 dayPhone CallCity 311
12/2/20251212 W 109TH PLMorgan Park21Completed1 dayInternetCity 311
1/5/202612558 S PRINCETON AVEWest Pullman9Completed1 dayInternetCity 311
2/5/20261318 S INDEPENDENCENorth Lawndale24Completed1 daySalesforce Mobile AppCity 311
5/6/20268500 W CATHERINE AVEO'Hare41Completed1 dayPhone CallCity 311
2/25/20263669 N ELSTON AVEIrving Park33Completed1 dayMobile DeviceCity 311
2/10/20262457 W MOFFAT STLogan Square1Completed1 dayMobile DeviceCity 311
4/15/20264701 S HAMLIN AVEArcher Heights14Completed1 dayAlderman's OfficeCity 311
2/23/20265101 S NEENAH AVEGarfield Ridge23Completed1 dayPhone CallCity 311
7/7/20268601 W CATHERINE AVEO'Hare41Completed1 dayPhone CallCity 311
2/24/20264050 W WEST END AVEWest Garfield Park28Completed1 dayInternetCity 311
1/21/202612817 S WALLACE STWest Pullman9Completed1 dayAlderman's OfficeCity 311
4/8/20265500 W WARWICK AVEPortage Park30Completed1 dayAlderman's OfficeCity 311
2/16/20265301 S NARRAGANSETT AVEGarfield Ridge23Completed1 dayPhone CallCity 311
3/19/2026539 W 45TH PLNew City15Completed1 dayMobile DeviceCity 311
11/5/20255025 N MELVINA AVEJefferson Park45Completed1 dayPhone CallCity 311
12/28/20256340 W BELMONT AVEDunning30Completed1 dayPhone CallCity 311
4/7/20264700 S WABASH AVEGrand Boulevard3Completed1 dayPhone CallCity 311
3/19/20269763 S OGLESBY AVESouth Deering7Completed1 dayPhone CallCity 311
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