RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4604 locations in the last 30 days (4755 reports) · Last sighting 24 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

54,551 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/22/20253528 S LOWE AVEBridgeport11Completed12 daysAlderman's OfficeCity 311
8/22/20255608 S EMERALD AVEEnglewood16Completed11 daysInternetCity 311
8/22/20253356 N MELVINA AVEDunning30Completed14 daysMobile DeviceCity 311
8/22/20255817 W SCHOOL STPortage Park30Completed17 daysAlderman's OfficeCity 311
8/22/20251756 W ERIE STWest Town1Completed13 daysInternetCity 311
8/22/20255237 S FRANCISCO AVEGage Park14Completed6 daysMobile DeviceCity 311
8/22/20257800 S UNION AVEAuburn Gresham17Completed13 daysPhone CallCity 311
8/22/20254820 N KENTUCKY AVEAlbany Park39Completed11 daysAlderman's OfficeCity 311
8/22/20256343 S KARLOV AVEWest Lawn13Completed11 daysAlderman's OfficeCity 311
8/22/20256355 S KOLIN AVEWest Lawn13Completed11 daysInternetCity 311
8/22/20255725 S TROY STGage Park14Completed6 daysAlderman's OfficeCity 311
8/22/20251337 W HENDERSON STLake View44Completed14 daysPhone CallCity 311
8/22/20251611 W SUNNYSIDE AVEUptown47Completed13 daysInternetCity 311
8/22/20255335 N MELVINA AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/22/20253639 W 70TH STWest Lawn23Completed7 daysAlderman's OfficeCity 311
8/22/20255337 N MELVINA AVEJefferson Park45Completed12 daysMobile DeviceCity 311
8/22/202511325 S HAMLIN AVEMount Greenwood19Completed12 daysAlderman's OfficeCity 311
8/22/20253041 W LELAND AVEAlbany Park33Completed13 daysMobile DeviceCity 311
8/22/20252118 N CLIFTON AVELincoln Park2Completed6 daysAlderman's OfficeCity 311
8/22/20253359 N AUSTIN AVEPortage Park30Completed14 daysInternetCity 311
8/22/202511353 S HAMLIN AVEMount Greenwood19Completed12 daysInternetCity 311
8/22/20256320 W HOLBROOK STNorwood Park39Completed11 daysAlderman's OfficeCity 311
8/22/202511359 S HAMLIN AVEMount Greenwood19Completed5 daysInternetCity 311
8/22/20253300 W LE MOYNE STHumboldt Park26Completed13 daysAlderman's OfficeCity 311
8/22/20253057 W DIVERSEY AVELogan Square1Completed12 daysAlderman's OfficeCity 311
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