RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4153 locations in the last 30 days (4298 reports) · Last sighting 3 days 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/2/20262026 W CORTEZ STWest Town1Completed14 daysInternetCity 311
10/7/20262026 W CORTLAND STLogan Square32Open—Mobile DeviceCity 311
6/30/20262026 W CORTLAND STLogan Square32Completed6 daysMobile DeviceCity 311
9/19/20262027 N BISSELL STLincoln Park43Completed12 daysMobile DeviceCity 311
9/15/20262027 N HOWELincoln Park43Completed14 daysSalesforce Mobile AppCity 311
12/2/20252027 N KEELER AVEHermosa35Completed1 dayMobile DeviceCity 311
8/14/20252027 N TRIPP AVEHermosa35Completed12 daysPhone CallCity 311
7/29/20252027 W ARMITAGE AVELogan Square32Completed10 daysMobile DeviceCity 311
8/20/20262027 W CORTLAND STLogan Square32Completed14 daysMobile DeviceCity 311
6/1/20262027 W CORTLAND STLogan Square32Completed3 daysMobile DeviceCity 311
9/7/20262027 W CORTLAND STLogan Square32Completed2 daysMobile DeviceCity 311
3/22/20262027 W FLETCHER STNorth Center32Completed1 dayMobile DeviceCity 311
8/6/20262027 W FLETCHER STNorth Center32Completed11 daysPhone CallCity 311
2/25/20262027 W HUTCHINSON STNorth Center47Completed1 dayMobile DeviceCity 311
8/21/20252027 W LELAND AVELincoln Square47Completed12 daysMobile DeviceCity 311
7/26/20252028 N POINT STLogan Square1Completed6 daysInternetCity 311
10/3/20262028 S CALIFORNIA AVESouth Lawndale25Open—InternetCity 311
9/8/20262028 S CALIFORNIA AVESouth Lawndale25Completed9 daysInternetCity 311
10/4/20252028 W 68TH PLWest Englewood16Completed6 daysPhone CallCity 311
8/21/20262028 W 68TH PLWest Englewood16Completed11 daysPhone CallCity 311
9/12/20262028 W 95TH STBeverly19Completed11 daysMobile DeviceCity 311
7/29/20262028 W BARRY AVENorth Center32Completed13 daysInternetCity 311
7/6/20262028 W CORTLAND STLogan Square32Completed3 daysMobile DeviceCity 311
7/21/20262028 W IRVING PARK RDNorth Center47Completed10 daysMobile DeviceCity 311
4/22/20262028 W IRVING PARK RDNorth Center47Completed1 dayMobile DeviceCity 311
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