RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4502 locations in the last 30 days (4675 reports) · Last sighting 15 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

57,792 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
6/12/20264941 W WEST WEST END AVEAustin28Completed3 daysPhone CallCity 311
5/17/20262414 W 35TH STMcKinley Park12Completed3 daysMobile DeviceCity 311
3/27/20265700 W CORNELIA AVEPortage Park30Completed3 daysAlderman's OfficeCity 311
3/20/20261117 N CENTRAL PARK AVEHumboldt Park36Completed3 daysPhone CallCity 311
4/20/20264145 N GREENVIEW AVELake View47Completed3 daysMobile DeviceCity 311
5/11/20261646 N BELL AVEWest Town32Completed3 daysInternetCity 311
5/16/20261727 W NEWPORT AVELake View47Completed3 daysMobile DeviceCity 311
5/15/20265830 W ROSCOE STPortage Park30Completed3 daysInternetCity 311
5/11/20264340 W AUGUSTA BLVDHumboldt Park37Completed3 daysPhone CallCity 311
3/14/20262217 W ROSCOE STNorth Center32Completed3 daysInternetCity 311
4/24/20261700 W JUNEWAY TERRogers Park49Completed3 daysPhone CallCity 311
4/14/20266749 S KARLOV AVEWest Lawn23Completed3 daysMobile DeviceCity 311
10/5/2025360 E 91ST STChatham6Completed3 daysMobile DeviceCity 311
7/21/2026876 N MARSHFIELD AVEWest Town1Completed3 daysInternetCity 311
6/1/20262141 N KIMBALL AVELogan Square35Completed3 daysMobile DeviceCity 311
5/1/20264968 N KOLMAR AVEAlbany Park39Completed3 daysInternetCity 311
5/18/20266112 S DR MARTIN LUTHER KING JR DRWashington Park20Completed3 daysPhone CallCity 311
5/8/20264925 S MAPLEWOOD AVEGage Park15Completed3 daysAlderman's OfficeCity 311
5/15/20263943 W 60TH STWest Lawn23Completed3 daysMobile DeviceCity 311
5/15/20269943 S CALHOUN AVESouth Deering7Completed3 daysPhone CallCity 311
8/24/20252709 W RASCHER AVELincoln Square40Completed3 daysMobile DeviceCity 311
11/16/20253549 W DICKENS AVELogan Square26Completed3 daysInternetCity 311
11/21/20256149 N BROADWAYEdgewater48Completed3 daysMobile DeviceCity 311
5/31/20261908 S TROY STNorth Lawndale24Completed3 daysMobile DeviceCity 311
11/7/20255950 S PAULINA STWest Englewood15Completed3 daysInternetCity 311
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