RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4380 locations in the last 30 days (4541 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/9/20263212 N CENTRAL AVEPortage Park30Completed15 daysInternetCity 311
8/24/20264921 N CENTRAL PARK AVEAlbany Park33Completed15 daysMobile DeviceCity 311
8/30/20262511 N KIMBALL AVELogan Square35Completed15 daysMobile DeviceCity 311
8/5/20262629 W WILSON AVELincoln Square47Completed15 daysMobile DeviceCity 311
8/25/20262620 W POTOMAC AVEWest Town26Completed15 daysMobile DeviceCity 311
8/12/20262220 W EASTWOOD AVELincoln Square47Completed15 daysInternetCity 311
8/11/20264747 N LINCOLN AVELincoln Square47Completed15 daysMobile DeviceCity 311
8/31/20262951 W WABANSIA AVEWest Town26Completed15 daysInternetCity 311
8/5/20262450 W BRADLEY PLNorth Center47Completed15 daysMobile DeviceCity 311
8/11/20264855 W MONTROSE AVEPortage Park45Completed15 daysPhone CallCity 311
8/26/20262015 W FULLERTON AVELogan Square32Completed15 daysInternetCity 311
8/31/20265226 S MASON AVEGarfield Ridge23Completed15 daysPhone CallCity 311
9/10/20264207 S INDIANA AVEGrand Boulevard3Completed15 daysMobile DeviceCity 311
8/26/2026941 W LAKESIDE PLUptown46Completed15 daysMobile DeviceCity 311
8/12/20265473 N MASON AVEJefferson Park45Completed15 daysInternetCity 311
8/20/20255442 N PAULINA STEdgewater40Completed15 daysMobile DeviceCity 311
8/31/20262352 W WILSON AVELincoln Square47Completed15 daysMobile DeviceCity 311
9/1/20262123 W WELLINGTON AVENorth Center32Completed15 daysMobile DeviceCity 311
8/24/20251851 W IOWA STWest Town36Completed15 daysMobile DeviceCity 311
9/1/20262123 W WELLINGTON AVENorth Center32Completed15 daysInternetCity 311
8/25/20262915 N ALBANY AVEAvondale35Completed15 daysMobile DeviceCity 311
8/20/20253550 W MONTROSE AVEAlbany Park33Completed15 daysInternetCity 311
7/15/20265300 S PRINCETON AVEFuller Park20Completed15 daysPhone CallCity 311
9/7/20265605 S SAYRE AVEGarfield Ridge13Completed15 daysMobile DeviceCity 311
8/11/20262010 N FREMONT STLincoln Park43Completed15 daysMobile DeviceCity 311
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