RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4223 locations in the last 30 days (4376 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/29/20254819 W ROSEMONT AVEForest Glen39Completed1 dayPhone CallCity 311
8/21/20266235 N KARLOV AVEForest Glen39Completed12 daysMobile DeviceCity 311
11/23/20256246 N CICERO AVEForest Glen39Completed2 daysMobile DeviceCity 311
8/17/20265138 N ST LOUIS AVENorth Park39Completed10 daysPhone CallCity 311
9/4/20255452 N SPAULDING AVENorth Park39Completed12 daysInternetCity 311
4/12/20264932 N RIDGEWAY AVEAlbany Park39Completed1 dayInternetCity 311
11/3/20256007 N MARMORA AVEJefferson Park39Completed2 daysMobile DeviceCity 311
10/1/20265453 N VIRGINIA AVELincoln Square39Completed13 daysPhone CallCity 311
3/10/20266353 W HYACINTH STNorwood Park39Completed2 daysInternetCity 311
10/2/20265846 N ST LOUIS AVENorth Park39Completed13 daysInternetCity 311
8/28/20263238 W OLIVE AVENorth Park39Completed14 daysPhone CallCity 311
10/25/20254137 N PULASKI RDIrving Park39Completed5 daysPhone CallCity 311
7/20/20264733 N KARLOV AVEAlbany Park39Completed8 daysPhone CallCity 311
9/24/20265145 N CENTRAL PARK AVENorth Park39Completed8 daysMobile DeviceCity 311
9/28/20265005 N LAWNDALE AVEAlbany Park39Completed11 daysInternetCity 311
7/23/20265649 N SPAULDING AVENorth Park39Completed14 daysInternetCity 311
10/12/20265355 N BERNARD STNorth Park39Open—InternetCity 311
8/10/20264553 N KENNETH AVEIrving Park39Completed7 daysPhone CallCity 311
7/21/20264947 N HAMLIN AVEAlbany Park39Completed14 daysInternetCity 311
8/17/20264152 N HARDING AVEIrving Park39Completed9 daysPhone CallCity 311
8/8/20265638 N DRAKE AVENorth Park39Completed12 daysMobile DeviceCity 311
8/11/20264914 N KEELER AVEAlbany Park39Completed6 daysMobile DeviceCity 311
10/5/20264762 N KARLOV AVEAlbany Park39Open—Phone CallCity 311
8/9/20264541 N KENNETH AVEIrving Park39Completed8 daysMobile DeviceCity 311
9/29/20262921 W RASCHER AVELincoln Square39Completed3 daysPhone CallCity 311
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