RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4349 locations in the last 30 days (4512 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.

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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

57,594 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/24/20263853 W FILLMORE STNorth Lawndale24Completed9 daysPhone CallCity 311
6/29/20264800 S HONORE STNew City15Completed9 daysPhone CallCity 311
8/17/20263710 W 107TH STMount Greenwood19Completed9 daysPhone CallCity 311
10/11/20255827 N MEDINA AVENorwood Park45Completed9 daysMobile DeviceCity 311
7/15/20263019 W FULLERTON AVELogan Square35Completed9 daysPhone CallCity 311
10/14/20263100 N ODELL AVEDunning29Completed9 daysMobile DeviceCity 311
9/2/20251518 E 72ND STSouth Shore8Completed9 daysPhone CallCity 311
9/16/20261135 W GRACE STLake View44Completed9 daysInternetCity 311
7/4/20261919 N CENTRAL PARK AVELogan Square26Completed9 daysPhone CallCity 311
7/21/20265637 W 63RD PLClearing13Completed9 daysInternetCity 311
9/2/20253325 S LOWE AVEBridgeport11Completed9 daysPhone CallCity 311
9/27/20257415 S UNION AVEEnglewood17Completed9 daysInternetCity 311
9/16/20258146 S DREXEL AVEChatham8Completed9 daysInternetCity 311
9/20/20252649 W CORTEZ STWest Town36Completed9 daysMobile DeviceCity 311
8/26/20263431 W 84TH STAshburn18Completed9 daysPhone CallCity 311
7/25/20261508 W JARVIS AVERogers Park49Completed9 daysInternetCity 311
7/21/20266535 S KENNETH AVEWest Lawn13Completed9 daysPhone CallCity 311
8/17/20264840 W GREGORY STForest Glen39Completed9 daysAlderman's OfficeCity 311
9/24/20253837 N SEELEY AVENorth Center47Completed9 daysInternetCity 311
7/19/20264625 W MCLEAN AVEBelmont Cragin26Completed9 daysMobile DeviceCity 311
9/17/20255214 W MONTANA STBelmont Cragin31Completed9 daysMobile DeviceCity 311
7/21/2026156 N HERMITAGE AVENear West Side27Completed9 daysInternetCity 311
7/21/2026155 N WOOD STNear West Side27Completed9 daysInternetCity 311
7/13/20265300 W DRUMMOND PLBelmont Cragin31Completed9 daysAlderman's OfficeCity 311
8/16/20255342 N MEADE AVEJefferson Park45Completed9 daysMobile DeviceCity 311
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