RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4564 locations in the last 30 days (4716 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.

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

54,350 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/5/20258041 S STEWART AVEChatham6Completed13 daysPhone CallCity 311
7/16/20265158 W SCHOOL STPortage Park31Completed13 daysInternetCity 311
10/1/20254522 W DEMING PLHermosa31Completed13 daysPhone CallCity 311
9/12/20251212 N MASON AVEAustin29Completed13 daysPhone CallCity 311
10/1/20254522 W DEMING PLHermosa31Completed13 daysPhone CallCity 311
9/10/20267816 S EMERALD AVEAuburn Gresham17Completed13 daysInternetCity 311
8/11/20264848 W FULTON STAustin28Completed13 daysAlderman's OfficeCity 311
8/8/20263416 N LAVERGNE AVEPortage Park31Completed13 daysMobile DeviceCity 311
8/13/20261143 N SPRINGFIELDHumboldt Park37Completed13 daysSalesforce Mobile AppCity 311
9/4/20264627 S HOMAN AVEBrighton Park12Completed13 daysAlderman's OfficeCity 311
7/10/2026601 W 46TH PLNew City15Completed13 daysPhone CallCity 311
9/12/20253219 N KARLOV AVEIrving Park30Completed13 daysAlderman's OfficeCity 311
9/11/20262014 N SHEFFIELD AVELincoln Park43Completed13 daysPhone CallCity 311
8/6/20266947 S MICHIGAN AVEGreater Grand Crossing6Completed13 daysMobile DeviceCity 311
8/21/20268065 S ST LOUIS AVEAshburn18Completed13 daysPhone CallCity 311
9/15/20265500 S WINCHESTER AVEWest Englewood16Completed13 daysPhone CallCity 311
8/7/20252208 N KIMBALL AVELogan Square35Completed13 daysPhone CallCity 311
8/27/20255751 S NOTTINGHAM AVEGarfield Ridge13Completed13 daysAlderman's OfficeCity 311
7/16/20262701 N LARAMIE AVEBelmont Cragin31Completed13 daysPhone CallCity 311
8/5/20253833 N LAKEWOOD AVELake View44Completed13 daysPhone CallCity 311
7/31/20263227 W 83RD STAshburn18Completed13 daysPhone CallCity 311
9/8/202651 E 98TH STRoseland9Completed13 daysPhone CallCity 311
9/12/20264501 N ROCKWELL STLincoln Square47Completed13 daysInternetCity 311
7/29/20265033 W WINONA STForest Glen45Completed13 daysInternetCity 311
7/24/20264248 W VAN BURENWest Garfield Park28Completed13 daysSalesforce Mobile AppCity 311
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