RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4356 locations in the last 30 days (4538 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/5/20265242 S NORMANDY AVEGarfield Ridge23Completed9 daysMobile DeviceCity 311
7/13/20265242 S NARRAGANSETT AVEGarfield Ridge23Completed0 daysInternetCity 311
8/6/20265242 S MONITOR AVEGarfield Ridge23Completed10 daysInternetCity 311
5/14/20265242 S MOBILE AVEGarfield Ridge23Completed1 dayAlderman's OfficeCity 311
9/18/20265242 S MAPLEWOOD AVEGage Park14Completed6 daysPhone CallCity 311
5/27/20265242 S KILPATRICK AVEGarfield Ridge23Completed2 daysPhone CallCity 311
10/19/20265242 S HOMAN AVEGage Park14Open—InternetCity 311
8/7/20265242 S FAIRFIELD AVEGage Park14Completed10 daysPhone CallCity 311
9/17/20265242 S ARTESIAN AVEGage Park14Completed7 daysAlderman's OfficeCity 311
3/30/20265241 W CUYLER AVEPortage Park38Completed2 daysPhone CallCity 311
8/20/20265241 W CARMEN AVEJefferson Park45Completed13 daysInternetCity 311
7/2/20265241 S MEADE AVEGarfield Ridge23Completed7 daysInternetCity 311
9/23/20265241 N SPAULDING AVENorth Park39Completed9 daysAlderman's OfficeCity 311
5/11/20265241 N ROCKWELL STLincoln Square40Completed3 daysInternetCity 311
10/19/20265241 N NAGLE AVEJefferson Park41Open—InternetCity 311
4/26/20265241 N MULLIGAN AVEJefferson Park45Completed3 daysMobile DeviceCity 311
9/3/20265241 N LARAMIE AVEJefferson Park45Completed15 daysMobile DeviceCity 311
6/3/20265241 N DAMEN AVELincoln Square40Completed2 daysPhone CallCity 311
3/27/20265241 N DAMEN AVELincoln Square40Completed3 daysInternetCity 311
7/2/20265240 W WAVELAND AVEPortage Park30Completed8 daysMobile DeviceCity 311
6/24/20265240 W RACE AVEAustin37Completed5 daysMobile DeviceCity 311
8/12/20265240 W NEWPORT AVEPortage Park31Completed1 dayPhone CallCity 311
8/31/20265240 W BERTEAU AVEPortage Park38Completed10 daysAlderman's OfficeCity 311
8/20/20255240 W BERENICE AVEPortage Park30Completed9 daysPhone CallCity 311
11/5/20255240 W 55TH STGarfield Ridge23Completed2 daysInternetCity 311
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