RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4411 locations in the last 30 days (4575 reports) · Last sighting 16 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

53,243 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/25/20262254 N SPRINGFIELD AVELogan Square35Completed15 daysMobile DeviceCity 311
8/25/20265708 S CARPENTER STEnglewood16Completed15 daysAlderman's OfficeCity 311
8/18/20255554 N LOTUS AVEJefferson Park45Completed15 daysPhone CallCity 311
8/19/20259958 S HAMILTON AVEBeverly19Completed15 daysInternetCity 311
8/24/20264130 N BERNARD STIrving Park33Completed15 daysMobile DeviceCity 311
8/11/20265200 N LIANO AVEJefferson Park45Completed15 daysPhone CallCity 311
8/17/20261576 N CLYBOURN AVENear North Side2Completed15 daysMobile DeviceCity 311
8/26/20266042 S MULLIGAN AVEClearing13Completed15 daysInternetCity 311
8/4/20268836 S DANTE AVECalumet Heights8Completed15 daysAlderman's OfficeCity 311
8/25/20267357 N DAMEN AVERogers Park49Completed15 daysMobile DeviceCity 311
9/29/20254119 W BARRY AVEAvondale31Completed15 daysAlderman's OfficeCity 311
8/18/20251537 W JARVIS AVERogers Park49Completed15 daysAlderman's OfficeCity 311
8/6/20263733 N SAYRE AVEDunning38Completed15 daysPhone CallCity 311
8/5/20252300 N PARKSIDE AVEBelmont Cragin36Completed15 daysPhone CallCity 311
8/31/20264532 N LAWNDALE AVEAlbany Park33Completed15 daysMobile DeviceCity 311
7/27/20263511 N NATCHEZDunning38Completed15 daysSalesforce Mobile AppCity 311
8/10/20265859 W FULLERTON AVEBelmont Cragin36Completed15 daysInternetCity 311
8/10/20265728 N MERRIMAC AVENorwood Park45Completed15 daysInternetCity 311
8/18/20255649 N MERRIMAC AVENorwood Park45Completed15 daysAlderman's OfficeCity 311
9/10/20265939 S PAULINA STWest Englewood15Completed15 daysPhone CallCity 311
8/24/20264818 N BERNARD STAlbany Park33Completed15 daysInternetCity 311
8/25/20261432 W IRVING PARKLake View47Completed15 daysSalesforce Mobile AppCity 311
8/27/20261703 W WALLEN AVERogers Park49Completed15 daysPhone CallCity 311
9/1/20265600 S LOOMIS STWest Englewood16Completed15 daysPhone CallCity 311
8/31/20266738 S WOOD STWest Englewood16Completed15 daysPhone CallCity 311
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