RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4701 locations in the last 30 days (4854 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.

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

54,807 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/24/202610333 S WENTWORTH AVERoseland9Completed12 daysInternetCity 311
8/29/20252445 N BURLING STLincoln Park43Completed12 daysPhone CallCity 311
8/15/20251833 W NORWOOD STWest Ridge40Completed12 daysPhone CallCity 311
8/13/2025914 N RICHMOND STWest Town26Completed12 daysInternetCity 311
8/28/20265138 S RIDGEWAY AVEWest Elsdon23Completed12 daysPhone CallCity 311
8/13/20263935 W 69TH PLWest Lawn23Completed12 daysAlderman's OfficeCity 311
9/17/20265111 S NEENAH AVEGarfield Ridge23Completed12 daysMobile DeviceCity 311
8/8/20268814 S CARPENTER STAuburn Gresham21Completed12 daysPhone CallCity 311
7/25/20266039 N ELSTON AVENorwood Park39Completed12 daysMobile DeviceCity 311
8/9/20254100 N HERMITAGE AVELake View47Completed12 daysInternetCity 311
8/21/20263440 N NATOMA AVEDunning38Completed12 daysPhone CallCity 311
8/21/20252027 W LELAND AVELincoln Square47Completed12 daysMobile DeviceCity 311
8/29/20252859 S RIDGEWAY AVESouth Lawndale22Completed12 daysAlderman's OfficeCity 311
7/23/20262619 N WHIPPLE STLogan Square1Completed12 daysInternetCity 311
8/1/20252161 W LELAND AVELincoln Square47Completed12 daysPhone CallCity 311
8/8/20252450 W BERTEAU AVENorth Center47Completed12 daysAlderman's OfficeCity 311
8/19/20263200 N PARIS AVEDunning38Completed12 daysPhone CallCity 311
9/6/20264419 S EMERALD AVENew City15Completed12 daysInternetCity 311
8/28/20257046 S YALE AVEGreater Grand Crossing6Completed12 daysInternetCity 311
8/15/20253227 W 109TH STMount Greenwood19Completed12 daysInternetCity 311
8/21/20263449 W LAWRENCE AVEAlbany Park33Completed12 daysPhone CallCity 311
8/8/20251327 N RIDGEWAY AVEHumboldt Park36Completed12 daysAlderman's OfficeCity 311
7/29/20261828 W GRACE STNorth Center47Completed12 daysAlderman's OfficeCity 311
8/21/20252146 N CLAREMONT AVELogan Square32Completed12 daysInternetCity 311
8/2/20253330 N AVERS AVEAvondale30Completed12 daysMobile DeviceCity 311
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