RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4541 locations in the last 30 days (4714 reports) · Last sighting 9 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.

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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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/10/20253904 N SAWYER AVEIrving Park33Completed8 daysPhone CallCity 311
11/24/20253756 N KEELER AVEIrving Park30Completed4 daysInternetCity 311
11/11/20254208 N BERNARD STIrving Park33Completed2 daysInternetCity 311
11/24/20254170 W EDDY STIrving Park30Completed4 daysMobile DeviceCity 311
11/24/20254172 W EDDY STIrving Park30Completed4 daysMobile DeviceCity 311
10/22/20263400 N TRIPP AVEIrving Park30Open—Phone CallCity 311
9/15/20254222 W HENDERSON STIrving Park30Completed10 daysMobile DeviceCity 311
7/1/20264041 N SPAULDING AVEIrving Park33Completed7 daysAlderman's OfficeCity 311
3/22/20264452 N TRIPP AVEIrving Park39Completed1 dayInternetCity 311
8/21/20253653 N MONTICELLO AVEIrving Park30Completed15 daysMobile DeviceCity 311
11/25/20253717 N BERNARD STIrving Park35Completed3 daysInternetCity 311
3/25/20263645 N ALBANY AVEIrving Park35Completed2 daysInternetCity 311
3/20/20263628 N KIMBALL AVEIrving Park35Completed3 daysInternetCity 311
8/11/20254013 N SACRAMENTO AVEIrving Park33Completed10 daysInternetCity 311
10/8/20264048 N AVERS AVEIrving Park45Completed18 daysMobile DeviceCity 311
5/10/20263900 N ALBANY AVEIrving Park33Completed1 dayInternetCity 311
12/4/20253401 N TRIPP AVEIrving Park30Completed1 dayAlderman's OfficeCity 311
11/22/20254236 N ALBANY AVEIrving Park33Completed6 daysMobile DeviceCity 311
11/24/20253217 W WARNER AVEIrving Park33Completed4 daysMobile DeviceCity 311
7/9/20263836 N CENTRAL PARK AVEIrving Park30Completed11 daysInternetCity 311
11/24/20254321 N ALBANY AVEIrving Park33Completed4 daysInternetCity 311
11/24/20253635 W MONTROSE AVEIrving Park33Completed4 daysAlderman's OfficeCity 311
10/20/20264044 N TROY STIrving Park33Open—Mobile DeviceCity 311
10/12/20263917 N TRIPP AVEIrving Park30Completed14 daysPhone CallCity 311
10/30/20253600 N BERNARD STIrving Park35Completed1 dayInternetCity 311
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