RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4412 locations in the last 30 days (4595 reports) · Last sighting 16 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.

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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

58,468 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/12/20255169 S MICHIGAN AVEWashington Park3Completed9 daysMobile DeviceCity 311
6/7/20265167 W CONCORD PLAustin37Completed3 daysMobile DeviceCity 311
5/1/20265166 S WABASH AVEWashington Park3Completed3 daysPhone CallCity 311
4/28/20265166 S WABASH AVEWashington Park3Completed1 dayPhone CallCity 311
6/29/20265165 W GRAND AVEBelmont Cragin36Completed3 daysPhone CallCity 311
10/4/20255164 N MEADE AVEJefferson Park45Completed11 daysInternetCity 311
9/19/20255163 W MONTROSE AVEPortage Park45Completed10 daysInternetCity 311
6/29/20265163 W GRAND AVEBelmont Cragin36Completed8 daysPhone CallCity 311
6/5/20265163 W CONCORD PLAustin37Completed5 daysMobile DeviceCity 311
6/27/20265162 W WABANSIA AVEAustin37Completed2 daysMobile DeviceCity 311
6/29/20265161 W GRAND AVEBelmont Cragin36Completed8 daysPhone CallCity 311
10/24/20265161 W GRAND AVEBelmont Cragin36Open—Phone CallCity 311
7/23/20265161 W DEVON AVEForest Glen39Completed12 daysInternetCity 311
8/22/20265161 W DEVON AVEForest Glen39Completed11 daysMobile DeviceCity 311
5/28/20265161 W CONCORD PLAustin37Completed1 dayAlderman's OfficeCity 311
7/29/20265161 W 63RD PLClearing13Completed13 daysMobile DeviceCity 311
5/31/20265161 N MELVINA AVEJefferson Park45Completed4 daysMobile DeviceCity 311
5/7/20265160 N LOVEJOY AVEJefferson Park45Completed4 daysMobile DeviceCity 311
9/10/2025515 W OAKDALE AVELake View44Completed1 dayPhone CallCity 311
7/31/2025515 W OAKDALE AVELake View44Completed1 dayPhone CallCity 311
10/6/2026515 W BELDEN AVELincoln Park43Completed14 daysInternetCity 311
9/10/2026515 W BELDEN AVELincoln Park43Completed11 daysInternetCity 311
11/10/2025515 W BELDEN AVELincoln Park43Completed4 daysAlderman's OfficeCity 311
2/27/2026515 W BELDEN AVELincoln Park43Completed5 daysInternetCity 311
9/18/2025515 W BARRY AVELake View44Completed11 daysInternetCity 311
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