RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4671 locations in the last 30 days (4822 reports) · Last sighting 19 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

55,179 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/31/2025858 N WINCHESTER AVEWest Town36Completed10 daysMobile DeviceCity 311
8/31/20253853 S UNION AVEBridgeport11Completed11 daysInternetCity 311
8/31/2025262 W 26THArmour Square11Completed11 daysSalesforce Mobile AppCity 311
8/31/20251860 N BISSELL STLincoln Park43Completed12 daysPhone CallCity 311
8/31/20255734 N HERMITAGE AVEEdgewater40Completed11 daysInternetCity 311
8/31/202510847 S ROCKWELL STMorgan Park19Completed11 daysPhone CallCity 311
8/31/20253612 N KILBOURN AVEIrving Park30Completed12 daysInternetCity 311
8/31/20254520 W ADDISON STIrving Park30Completed12 daysInternetCity 311
8/31/20253401 N KOLMAR AVEIrving Park30Completed12 daysInternetCity 311
8/31/2025237 W 109TH PLRoseland9Completed10 daysPhone CallCity 311
8/31/20253501 N KENTON AVEIrving Park30Completed12 daysInternetCity 311
8/31/20254795 S ARCHER AVEArcher Heights14Completed10 daysPhone CallCity 311
8/31/20252245 W SUPERIOR STWest Town36Completed10 daysMobile DeviceCity 311
8/31/20255420 N CLARK STEdgewater40Completed11 daysInternetCity 311
8/31/20255237 S INGLESIDE AVEHyde Park5Completed12 daysPhone CallCity 311
8/31/20255239 S INGLESIDE AVEHyde Park5Completed15 daysPhone CallCity 311
8/31/20254419 N SPAULDING AVEAlbany Park33Completed8 daysInternetCity 311
8/31/20255340 N BERNARD STNorth Park39Completed10 daysMobile DeviceCity 311
8/31/20252353 S ST LOUIS AVESouth Lawndale22Completed12 daysMobile DeviceCity 311
8/31/20253138 N NEWCASTLE AVEMontclare36Completed11 daysMobile DeviceCity 311
8/31/20252310 W HURON STWest Town36Completed10 daysInternetCity 311
8/31/20252309 W SUPERIOR STWest Town36Completed10 daysInternetCity 311
8/31/20252305 W SUPERIOR STWest Town36Completed10 daysInternetCity 311
8/31/20255130 W CULLOM AVEPortage Park45Completed11 daysInternetCity 311
8/31/202510845 S WABASH AVERoseland9Completed10 daysInternetCity 311
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