RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4616 locations in the last 30 days (4774 reports) · Last sighting 19 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

53,761 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/24/20263471 N KEDZIE AVEAvondale33Completed14 daysInternetCity 311
9/14/20264515 S HONORE STNew City15Completed14 daysPhone CallCity 311
8/19/20262743 W RASCHER AVELincoln Square40Completed14 daysMobile DeviceCity 311
8/27/20251631 N SAWYER AVEHumboldt Park26Completed14 daysMobile DeviceCity 311
8/25/20254843 N KOSTNER AVEAlbany Park39Completed14 daysMobile DeviceCity 311
7/21/20266004 N MARMORA AVEJefferson Park39Completed14 daysMobile DeviceCity 311
8/19/20262814 W 21ST STSouth Lawndale25Completed14 daysInternetCity 311
8/27/20251736 N TALMAN AVEWest Town26Completed14 daysMobile DeviceCity 311
8/18/20262519 N HALSTED STLincoln Park43Completed14 daysMobile DeviceCity 311
8/31/20267951 S PAULINA STAuburn Gresham17Completed14 daysInternetCity 311
9/8/20261620 W SUNNYSIDE AVEUptown47Completed14 daysMobile DeviceCity 311
8/19/20262802 W 21ST STSouth Lawndale25Completed14 daysInternetCity 311
8/19/20262649 W RASCHER AVELincoln Square40Completed14 daysMobile DeviceCity 311
9/4/20254614 N KENTON AVEIrving Park39Completed14 daysMobile DeviceCity 311
9/3/20265261 N LAMON AVEForest Glen39Completed14 daysMobile DeviceCity 311
8/28/20255342 W WELLINGTON AVEBelmont Cragin31Completed14 daysMobile DeviceCity 311
9/14/20261528 W FULLERTON AVELincoln Park32Completed14 daysPhone CallCity 311
8/25/2025463 W 28TH STBridgeport11Completed14 daysAlderman's OfficeCity 311
9/14/20264621 W MCLEAN AVEBelmont Cragin26Completed14 daysMobile DeviceCity 311
8/27/20251929 N HARDING AVEHermosa26Completed14 daysMobile DeviceCity 311
7/28/20263012 N LEAVITT STNorth Center32Completed14 daysInternetCity 311
8/5/20261128 W NORTH SHORE AVERogers Park49Completed14 daysInternetCity 311
7/28/20263839 W GRAND AVEHumboldt Park36Completed14 daysMobile DeviceCity 311
8/25/20262918 N AVERS AVEAvondale31Completed14 daysMobile DeviceCity 311
8/20/20252024 N PARKSIDE AVEBelmont Cragin36Completed14 daysPhone CallCity 311
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