RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4456 locations in the last 30 days (4621 reports) · Last sighting 11 hours 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.

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

56,705 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/5/20252135 N CLIFTON AVELincoln Park43Completed4 daysMobile DeviceCity 311
5/28/20262135 N KENMORE AVELincoln Park43Completed5 daysMobile DeviceCity 311
9/12/20252135 N MILWAUKEE AVELogan Square1Completed10 daysInternetCity 311
5/21/20262135 N MULLIGAN AVEBelmont Cragin36Completed1 dayPhone CallCity 311
8/25/20252135 N RACINE AVELincoln Park2Completed3 daysMobile DeviceCity 311
1/8/20262135 N SOUTHPORT AVELincoln Park2Completed1 dayPhone CallCity 311
10/2/20252135 S CENTRAL PARK AVENorth Lawndale24Completed6 daysInternetCity 311
7/26/20262135 S FAIRFIELD AVESouth Lawndale25Completed8 daysPhone CallCity 311
7/26/20262135 S FAIRFIELD AVESouth Lawndale25Completed8 daysPhone CallCity 311
9/24/20252135 W ARMITAGE AVELogan Square32Completed1 dayPhone CallCity 311
8/20/20252135 W ARMITAGE AVELogan Square32Completed1 dayPhone CallCity 311
9/26/20252135 W GRANVILLE AVEWest Ridge40Completed10 daysInternetCity 311
10/23/20252135 W GRANVILLE AVEWest Ridge40Completed7 daysPhone CallCity 311
7/20/20262135 W HADDON AVEWest Town1Completed4 daysMobile DeviceCity 311
5/13/20262135 W JACKSON BLVDNear West Side27Completed7 daysInternetCity 311
8/18/20262135 W LELAND AVELincoln Square47Completed10 daysInternetCity 311
9/4/20252135 W THOMAS STWest Town1Completed12 daysInternetCity 311
3/12/20262136 N CAMPBELL AVELogan Square1Completed5 daysInternetCity 311
7/2/20262136 N CLIFTON AVELincoln Park2Completed7 daysInternetCity 311
1/25/20262136 N KARLOV AVEHermosa35Completed2 daysPhone CallCity 311
9/3/20262136 N MOODY AVEBelmont Cragin36Completed11 daysPhone CallCity 311
12/28/20252136 N SEMINARY AVELincoln Park43Completed1 dayInternetCity 311
10/2/20252136 S DRAKE AVENorth Lawndale24Completed4 daysInternetCity 311
11/12/20252136 S DRAKE AVENorth Lawndale24Completed1 dayInternetCity 311
8/31/20262136 S FAIRFIELD AVESouth Lawndale25Completed11 daysPhone CallCity 311
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