RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4332 locations in the last 30 days (4512 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.

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

58,468 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/20/20255146 S HONORE STNew City16Completed1 dayMobile DeviceCity 311
8/15/20255146 S DR MARTIN LUTHER KING JR DRWashington Park3Completed3 daysInternetCity 311
6/17/20265145 W SCHOOL STPortage Park31Completed1 dayPhone CallCity 311
7/30/20255145 W MEDILL AVEBelmont Cragin31Completed12 daysMobile DeviceCity 311
9/1/20255145 W MEDILL AVEBelmont Cragin31Completed10 daysMobile DeviceCity 311
7/10/20265145 W MEDILL AVEBelmont Cragin31Completed10 daysPhone CallCity 311
9/26/20255145 W MEDILL AVEBelmont Cragin31Completed6 daysInternetCity 311
2/22/20265145 W DEMING PLBelmont Cragin31Completed2 daysMobile DeviceCity 311
2/3/20265145 S RUTHERFORD AVEGarfield Ridge23Completed1 dayAlderman's OfficeCity 311
7/21/20265145 S MULLIGAN AVEGarfield Ridge23Completed10 daysAlderman's OfficeCity 311
9/3/20255145 S MICHIGAN AVEWashington Park3Completed8 daysAlderman's OfficeCity 311
6/18/20265145 S KIMBARK AVEHyde Park4Completed5 daysPhone CallCity 311
3/30/20265145 N LINCOLN AVELincoln Square40Completed2 daysInternetCity 311
9/24/20265145 N CENTRAL PARK AVENorth Park39Completed8 daysMobile DeviceCity 311
6/5/20265145 N BERNARD STNorth Park39Completed5 daysMobile DeviceCity 311
8/6/20265145 N ASHLAND AVEUptown40Completed11 daysMobile DeviceCity 311
5/29/20265145 N ASHLAND AVEUptown40Completed4 daysMobile DeviceCity 311
2/24/20265145 N ASHLAND AVEUptown40Completed1 dayMobile DeviceCity 311
11/6/20255145 N ASHLAND AVEUptown40Completed0 daysMobile DeviceCity 311
10/8/20255145 N ASHLAND AVEUptown40Completed6 daysMobile DeviceCity 311
9/9/20265144 W ROSCOE STPortage Park31Completed14 daysMobile DeviceCity 311
8/18/20265144 S PARKSIDE AVEGarfield Ridge23Completed10 daysPhone CallCity 311
9/10/20265144 S LAWNDALE AVEWest Elsdon23Completed12 daysAlderman's OfficeCity 311
8/20/20265144 S LAWNDALE AVEWest Elsdon23Completed12 daysPhone CallCity 311
3/2/20265144 S KENNETH AVEArcher Heights23Completed3 daysInternetCity 311
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