RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4479 locations in the last 30 days (4645 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

52,821 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/29/2025959 W 37TH STBridgeport11Completed8 daysInternetCity 311
7/29/20255632 N NAGLE AVENorwood Park41Completed9 daysInternetCity 311
7/29/20255200 S TROY STGage Park14Completed7 daysInternetCity 311
7/29/20252449 N SEMINARY AVELincoln Park43Completed6 daysInternetCity 311
7/29/20251934 W GEORGE STNorth Center32Completed10 daysInternetCity 311
7/29/20251717 N HUMBOLDT BLVDWest Town26Completed6 daysMobile DeviceCity 311
7/29/20251936 N KEDVALE AVEHermosa26Completed8 daysMobile DeviceCity 311
7/29/20255623 S KARLOV AVEWest Elsdon13Completed2 daysInternetCity 311
7/29/2025715 N SAWYER AVEHumboldt Park27Completed7 daysInternetCity 311
7/29/20256017 W 55TH STGarfield Ridge13Completed2 daysMobile DeviceCity 311
7/29/20251611 W SUNNYSIDE AVEUptown47Completed9 daysInternetCity 311
7/29/20251642 S FAIRFIELD AVENorth Lawndale24Completed10 daysInternetCity 311
7/29/20251315 N WESTERN AVEWest Town1Completed8 daysInternetCity 311
7/29/20255830 W ROSCOE STPortage Park30Completed9 daysInternetCity 311
7/29/20251110 W WILSON AVEUptown46Completed9 daysInternetCity 311
7/29/20255527 S KENNETH AVEWest Elsdon13Completed2 daysMobile DeviceCity 311
7/29/20251948 W SUPERIOR STWest Town36Completed14 daysInternetCity 311
7/29/2025922 W WOLFRAM STLake View44Completed6 daysMobile DeviceCity 311
7/29/20253907 N DAMEN AVENorth Center47Completed8 daysInternetCity 311
7/29/20253308 N KILPATRICK AVEPortage Park30Completed8 daysInternetCity 311
7/30/20255025 W ROSCOE STPortage Park31Completed14 daysInternetCity 311
7/30/20256219 N HERMITAGE AVEEdgewater40Completed6 daysInternetCity 311
7/30/2025128 N LARAMIE AVEAustin37Completed10 daysMobile DeviceCity 311
7/30/2025533 E 87TH STChatham8Completed6 daysInternetCity 311
7/30/20256539 S KEATING AVEClearing13Completed13 daysMobile DeviceCity 311
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