RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4572 locations in the last 30 days (4727 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/1/20251314 W DIVERSEY AVELake View32Completed1 dayPhone CallCity 311
8/19/20251314 W DIVERSEY PKWYLake View32Completed13 daysMobile DeviceCity 311
8/16/202613152 S MACKINAW AVEHegewisch10Completed17 daysInternetCity 311
6/22/202613157 S RHODES AVERiverdale10Completed4 daysPhone CallCity 311
4/22/20261315A W 32ND STBridgeport11Completed5 daysMobile DeviceCity 311
6/28/20261315 N CAMPBELL AVEWest Town26Completed8 daysMobile DeviceCity 311
7/29/20251315 N WESTERN AVEWest Town1Completed8 daysInternetCity 311
8/11/20251315 W 106TH PLWashington Heights21Completed11 daysMobile DeviceCity 311
10/10/202513160 S ST LAWRENCE AVERiverdale10Completed10 daysInternetCity 311
5/23/202613161 S EBERHART AVERiverdale9Completed4 daysMobile DeviceCity 311
9/25/20261316 N BELL AVEWest Town1Open—InternetCity 311
8/19/20261316 S INDIANA PKWYNear South Side3Completed8 daysInternetCity 311
11/19/20251316 S INDIANA PKWYNear South Side3Completed1 dayInternetCity 311
2/6/20261316 W BYRON STLake View46Completed3 daysInternetCity 311
1/11/20261316 W FARWELL AVERogers Park49Completed1 dayMobile DeviceCity 311
11/19/20251316 W HOWARD STRogers Park49Completed5 daysMobile DeviceCity 311
9/9/20251317 S STATE STNear South Side3Completed9 daysInternetCity 311
11/25/20251317 W 31ST STBridgeport11Completed5 daysInternetCity 311
9/8/20251317 W COLUMBIA AVERogers Park49Completed10 daysInternetCity 311
8/18/20251317 W COLUMBIA AVERogers Park49Completed15 daysInternetCity 311
8/26/20261317 W COLUMBIA AVERogers Park49Completed14 daysPhone CallCity 311
8/12/20251318 E 88TH PLCalumet Heights8Completed2 daysInternetCity 311
10/27/20251318 N ASTOR STNear North Side43Completed2 daysPhone CallCity 311
9/15/20251318 N ASTOR STNear North Side43Completed0 daysPhone CallCity 311
9/26/20251318 N ASTOR STNear North Side43Completed10 daysPhone CallCity 311
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