RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4533 locations in the last 30 days (4687 reports) · Last sighting 2 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

53,915 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/6/20251346 S WASHTENAW AVENorth Lawndale28Completed12 daysPhone CallCity 311
9/19/20251346 S WASHTENAW AVENorth Lawndale28Completed11 daysPhone CallCity 311
10/19/20251346 W CULLERTON STLower West Side25Completed9 daysMobile DeviceCity 311
8/5/20251346 W DIVERSEY AVELake View32Completed13 daysMobile DeviceCity 311
9/10/20251346 W HENDERSON STLake View44Completed13 daysMobile DeviceCity 311
3/12/20261346 W ROSEMONT AVEEdgewater48Completed1 dayMobile DeviceCity 311
10/31/20251347 E 71ST PLSouth Shore8Completed2 daysPhone CallCity 311
4/30/20261347 W CARMEN AVEUptown47Completed1 dayInternetCity 311
7/29/20261347 W CHASE AVERogers Park49Completed8 daysPhone CallCity 311
8/1/20251347 W HENDERSON STLake View44Completed6 daysAlderman's OfficeCity 311
5/19/20261348 N CLEAVER STWest Town1Completed1 dayMobile DeviceCity 311
7/1/20261348 N CLEAVER STWest Town1Completed7 daysMobile DeviceCity 311
1/17/20261348 N CLEAVER STWest Town1Completed3 daysMobile DeviceCity 311
5/4/20261348 W 98TH STWashington Heights21Completed3 daysInternetCity 311
10/23/20251348 W 98TH STWashington Heights21Completed5 daysInternetCity 311
8/22/20261348 W DIVERSEY AVELake View32Completed13 daysMobile DeviceCity 311
5/5/20261348 W WILSON AVEUptown46Completed1 dayInternetCity 311
9/20/20261349 N LEAVITT STWest Town1Open—Mobile DeviceCity 311
9/27/20261349 N RIDGEWAY AVEHumboldt Park36Open—Mobile DeviceCity 311
9/11/20261349 N RIDGEWAY AVEHumboldt Park36Completed12 daysInternetCity 311
11/4/20251349 N SPRINGFIELD AVEHumboldt Park36Completed2 daysPhone CallCity 311
8/27/20261349 N WOLCOTT AVEWest Town1Completed8 daysMobile DeviceCity 311
4/12/20261349 N WOLCOTT AVEWest Town1Completed2 daysMobile DeviceCity 311
6/15/20261349 W 69TH STWest Englewood17Completed3 daysInternetCity 311
4/24/20261349 W 69TH STWest Englewood17Completed3 daysInternetCity 311
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