RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4636 locations in the last 30 days (4792 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.

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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/7/20253671 N ELSTON AVEIrving Park33Completed11 daysMobile DeviceCity 311
7/13/20261910 W PATTERSON AVENorth Center47Completed11 daysInternetCity 311
9/28/20267149 S WINCHESTER AVEWest Englewood17Completed11 daysAlderman's OfficeCity 311
7/3/20261224 N CICERO AVEAustin37Completed11 daysInternetCity 311
8/2/20257330 S UNIVERSITY AVEGreater Grand Crossing5Completed11 daysPhone CallCity 311
8/22/20262814 N SHEFFIELD AVELake View44Completed11 daysMobile DeviceCity 311
9/11/20262326 N SOUTHPORT AVELincoln Park2Completed11 daysInternetCity 311
7/24/202511622 S AVENUE NHegewisch10Completed11 daysAlderman's OfficeCity 311
8/7/20263005 S PRINCETON AVEArmour Square11Completed11 daysAlderman's OfficeCity 311
9/4/20257133 S DOBSON AVEGreater Grand Crossing5Completed11 daysPhone CallCity 311
9/21/20265400 S KOMENSKY AVEWest Elsdon23Completed11 daysMobile DeviceCity 311
8/29/20255614 S MORGAN STEnglewood16Completed11 daysMobile DeviceCity 311
8/7/20263003 S PRINCETON AVEArmour Square11Completed11 daysAlderman's OfficeCity 311
8/7/20263001 S PRINCETON AVEArmour Square11Completed11 daysPhone CallCity 311
7/24/202511506 S AVENUE HEast Side10Completed11 daysAlderman's OfficeCity 311
7/18/20263041 N DAVLIN CTAvondale31Completed11 daysPhone CallCity 311
8/6/2026648 W GRACE STLake View46Completed11 daysInternetCity 311
9/11/20254908 W MEDILL AVEBelmont Cragin31Completed11 daysAlderman's OfficeCity 311
8/3/20264507 S WHIPPLE STBrighton Park12Completed11 daysMobile DeviceCity 311
9/27/20261732 W SCHOOL STLake View32Completed11 daysInternetCity 311
6/29/20265500 S SEELEY AVEWest Englewood15Completed11 daysPhone CallCity 311
8/30/20253428 W GRENSHAW STNorth Lawndale24Completed11 daysPhone CallCity 311
8/3/2026933 N ASHLAND AVEWest Town1Completed11 daysInternetCity 311
9/14/20252059 N LA CROSSE AVEBelmont Cragin26Completed11 daysMobile DeviceCity 311
9/20/20253732 N PARIS AVEDunning38Completed11 daysMobile DeviceCity 311
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