RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4343 locations in the last 30 days (4499 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

56,145 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/3/20266518 S KNOX AVEClearing13Completed11 daysInternetCity 311
9/21/20261220 N WASHTENAW AVEWest Town26Completed11 daysMobile DeviceCity 311
8/6/20263505 N OAKLEY AVENorth Center32Completed11 daysMobile DeviceCity 311
7/31/20262042 N MOHAWK STLincoln Park43Completed11 daysInternetCity 311
9/8/2025340 S ARTESIAN AVENear West Side27Completed11 daysPhone CallCity 311
8/11/20253359 N NEVA AVEDunning38Completed11 daysAlderman's OfficeCity 311
10/3/20253034 W FOSTER AVENorth Park39Completed11 daysInternetCity 311
8/31/20261234 W RACE AVEWest Town1Completed11 daysInternetCity 311
8/15/20252807 N KIMBALL AVEAvondale35Completed11 daysMobile DeviceCity 311
8/17/20269046 S BISHOP STWashington Heights21Completed11 daysInternetCity 311
10/3/20253244 W BELLE PLAINE AVEIrving Park33Completed11 daysInternetCity 311
7/9/20262748 W LOGAN BLVDLogan Square1Completed11 daysPhone CallCity 311
9/10/20261520 W BYRON STLake View46Completed11 daysInternetCity 311
8/6/20263457 N HAMILTON AVENorth Center32Completed11 daysMobile DeviceCity 311
7/30/20262025 E 93RD STCalumet Heights7Completed11 daysMobile DeviceCity 311
8/30/20255746 S WOOD STWest Englewood15Completed11 daysPhone CallCity 311
8/16/20261517 W OLIVE AVEEdgewater48Completed11 daysPhone CallCity 311
8/17/20252724 W WINDSOR AVEAlbany Park40Completed11 daysInternetCity 311
9/14/20265120 N WOLCOTT AVELincoln Square40Completed11 daysMobile DeviceCity 311
8/15/20262930 N PARKSIDE AVEBelmont Cragin31Completed11 daysMobile DeviceCity 311
8/14/20252935 N MILWAUKEE AVEAvondale35Completed11 daysAlderman's OfficeCity 311
8/15/20256150 W BARRY AVEBelmont Cragin30Completed11 daysMobile DeviceCity 311
8/16/20252038 W FARGO AVERogers Park49Completed11 daysInternetCity 311
9/29/20255612 S KARLOV AVEWest Elsdon13Completed11 daysPhone CallCity 311
9/21/20265051 W ROSCOE STPortage Park31Completed11 daysInternetCity 311
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