RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4213 locations in the last 30 days (4369 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

56,389 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/7/20251229 S AVERS AVENorth Lawndale24Completed2 daysAlderman's OfficeCity 311
3/29/2026821 W WILLOW STLincoln Park43Completed2 daysMobile DeviceCity 311
6/23/20266500 S UNIVERSITY AVEWoodlawn20Completed2 daysPhone CallCity 311
6/29/2026912 S BELL AVENear West Side28Completed2 daysMobile DeviceCity 311
5/6/202610338 S DRAKE AVEMount Greenwood19Completed2 daysMobile DeviceCity 311
3/14/20261831 N LAWNDALE AVELogan Square26Completed2 daysInternetCity 311
5/25/20262548 S HOMAN AVESouth Lawndale22Completed2 daysMobile DeviceCity 311
3/11/20264923 N CLARK STUptown47Completed2 daysInternetCity 311
4/6/20264424 S MAPLEWOOD AVEBrighton Park12Completed2 daysPhone CallCity 311
12/1/20251062 W CHICAGO AVEWest Town27Completed2 daysPhone CallCity 311
8/23/20264300 S LAKE PARK AVEKenwood4Completed2 daysPhone CallCity 311
6/15/20263808 W 46TH STArcher Heights14Completed2 daysInternetCity 311
11/26/20252154 W 50TH STNew City15Completed2 daysInternetCity 311
3/17/20265327 S ABERDEEN STNew City16Completed2 daysPhone CallCity 311
5/12/20262645 W AUGUSTA BLVDWest Town36Completed2 daysMobile DeviceCity 311
6/30/20266341 N LAKEWOOD AVEEdgewater48Completed2 daysMobile DeviceCity 311
10/27/20251250 N MAYFIELD AVEAustin29Completed2 daysInternetCity 311
10/28/20258451 S ESSEX AVESouth Chicago7Completed2 daysPhone CallCity 311
8/15/20262025 W 47TH STNew City15Completed2 daysAlderman's OfficeCity 311
11/3/2025610 W BRIAR PLLake View44Completed2 daysPhone CallCity 311
5/26/20266624 S SACRAMENTO AVEChicago Lawn15Completed2 daysPhone CallCity 311
1/26/20261742 N SAWYER AVEHumboldt Park26Completed2 daysInternetCity 311
4/11/20268843 S CARPENTER STAuburn Gresham21Completed2 daysInternetCity 311
6/30/20266322 N ALBANY AVEWest Ridge50Completed2 daysInternetCity 311
6/15/20261113 S RACINE AVENear West Side34Completed2 daysInternetCity 311
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