RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4691 locations in the last 30 days (4851 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/4/20251515 W SUNNYSIDE AVEUptown47Completed2 daysMobile DeviceCity 311
6/16/20265146 W MELROSE STPortage Park31Completed2 daysPhone CallCity 311
10/14/20253117 N OAK PARK AVEMontclare36Completed2 daysMobile DeviceCity 311
6/1/20264030 N CLARENDON AVEUptown46Completed2 daysInternetCity 311
10/28/20251116 N WOOD STWest Town1Completed2 daysInternetCity 311
3/28/20261245 W 31ST STBridgeport11Completed2 daysMobile DeviceCity 311
1/7/20262622 W BALMORAL AVELincoln Square40Completed2 daysMobile DeviceCity 311
10/14/20253115 N OAK PARK AVEMontclare36Completed2 daysMobile DeviceCity 311
10/14/20253104 N RUTHERFORD AVEMontclare36Completed2 daysMobile DeviceCity 311
11/3/20255217G S UNIVERSITY AVEHyde Park5Completed2 daysInternetCity 311
5/12/2026849 N PULASKI RDHumboldt Park37Completed2 daysInternetCity 311
6/22/20262835 S UNION AVEBridgeport11Completed2 daysMobile DeviceCity 311
3/15/2026632 W 32ND STBridgeport11Completed2 daysMobile DeviceCity 311
6/9/20263353 W 83RD PLAshburn18Completed2 daysMobile DeviceCity 311
3/1/20265726 W LAWRENCE AVEPortage Park45Completed2 daysInternetCity 311
6/7/20265106 S NEWCASTLE AVEGarfield Ridge23Completed2 daysMobile DeviceCity 311
11/12/20253149 W ARGYLE STAlbany Park33Completed2 daysMobile DeviceCity 311
11/11/20255210 W MONTANA STBelmont Cragin31Completed2 daysMobile DeviceCity 311
6/2/2026424 W DIVERSEY PKWYLake View44Completed2 daysInternetCity 311
6/21/20263530 N ASHLAND AVELake View47Completed2 daysInternetCity 311
3/3/20265310 N NATOMA AVENorwood Park41Completed2 daysPhone CallCity 311
1/27/2026850 N DAMEN AVEWest Town36Completed2 daysPhone CallCity 311
3/23/20265836 S MULLIGAN AVEGarfield Ridge13Completed2 daysInternetCity 311
1/7/20263669 N ELSTON AVEIrving Park33Completed2 daysInternetCity 311
2/22/20264305 S SPAULDING AVEBrighton Park12Completed2 daysMobile DeviceCity 311
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