RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4358 locations in the last 30 days (4522 reports) · Last sighting 20 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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
12/19/20253053 S BONFIELD STBridgeport11Completed3 daysPhone CallCity 311
5/26/20262208 W 111TH STMorgan Park19Completed3 daysInternetCity 311
4/28/20262063 N LARRABEE STLincoln Park43Completed3 daysPhone CallCity 311
5/19/20263037 N LINCOLN AVELake View32Completed3 daysInternetCity 311
10/21/20253407 S RACINE AVEBridgeport11Completed3 daysInternetCity 311
3/29/20266400 S RICHMOND STChicago Lawn15Completed3 daysInternetCity 311
6/1/20268303 W IRVING PARK RDDunning38Completed3 daysMobile DeviceCity 311
3/6/20265907 W ADDISON STPortage Park30Completed3 daysMobile DeviceCity 311
6/13/20264821 N KEDVALE AVEAlbany Park39Completed3 daysInternetCity 311
4/26/20261650 N CLAREMONT AVEWest Town32Completed3 daysMobile DeviceCity 311
10/26/20251937 N LARRABEE STLincoln Park43Completed3 daysMobile DeviceCity 311
10/20/20252855 W TOUHY AVEWest Ridge50Completed3 daysMobile DeviceCity 311
11/7/20255751 W NEWPORT AVEPortage Park30Completed3 daysInternetCity 311
4/3/20266151 W BARRY AVEBelmont Cragin30Completed3 daysInternetCity 311
6/13/20266048 N KEELER AVEForest Glen39Completed3 daysInternetCity 311
5/25/20266249 N NORTHWEST HWYNorwood Park41Completed3 daysPhone CallCity 311
11/10/20255214 W PARKER AVEBelmont Cragin31Completed3 daysMobile DeviceCity 311
6/8/20266039 N ELSTON AVENorwood Park39Completed3 daysMobile DeviceCity 311
10/21/20252233 W MADISON STNear West Side27Completed3 daysInternetCity 311
6/2/20266658 N WASHTENAW AVEWest Ridge50Completed3 daysInternetCity 311
5/11/20261135 N SACRAMENTO AVEWest Town26Completed3 daysInternetCity 311
5/19/20265159 S NEWLAND AVEGarfield Ridge23Completed3 daysMobile DeviceCity 311
5/25/20264914 N ROCKWELL STLincoln Square40Completed3 daysInternetCity 311
1/9/20265510 N LUNA AVEJefferson Park45Completed3 daysInternetCity 311
6/1/20261911 N SAWYER AVELogan Square26Completed3 daysMobile DeviceCity 311
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