RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4632 locations in the last 30 days (4781 reports) · Last sighting 21 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

55,375 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/25/20262227 N PARKSIDE AVEBelmont Cragin36Completed12 daysInternetCity 311
9/3/20256334 N MOBILE AVENorwood Park39Completed12 daysPhone CallCity 311
9/17/20252054 W MORSE AVEWest Ridge40Completed12 daysInternetCity 311
8/19/20263518 N FREMONT STLake View44Completed12 daysMobile DeviceCity 311
9/11/20252436 W CORTEZ STWest Town36Completed12 daysPhone CallCity 311
8/31/2025733 E 80TH STChatham6Completed12 daysPhone CallCity 311
7/18/20265011 N CENTRAL AVEJefferson Park45Completed12 daysMobile DeviceCity 311
9/27/20261351 N RIDGEWAY AVEHumboldt Park36Completed12 daysMobile DeviceCity 311
7/18/20265654 W BYRON STPortage Park38Completed12 daysInternetCity 311
7/18/20265906 N MERRIMAC AVENorwood Park45Completed12 daysInternetCity 311
8/27/20261700 S LOOMIS STLower West Side25Completed12 daysMobile DeviceCity 311
8/13/20266025 S MCVICKER AVEClearing13Completed12 daysInternetCity 311
9/3/20256265D N NORTHWEST HWYNorwood Park41Completed12 daysMobile DeviceCity 311
9/19/20256935 W 64TH STClearing13Completed12 daysAlderman's OfficeCity 311
9/3/20253558 N PULASKI RDIrving Park30Completed12 daysInternetCity 311
8/14/20263310 N AVERS AVEAvondale30Completed12 daysMobile DeviceCity 311
8/8/20262320 W SUNNYSIDE AVELincoln Square47Completed12 daysInternetCity 311
8/22/20264948 W WASHINGTON BLVDAustin28Completed12 daysMobile DeviceCity 311
8/21/20255147 W EDDY STPortage Park31Completed12 daysPhone CallCity 311
9/5/20262655 N MAGNOLIA AVELincoln Park32Completed12 daysInternetCity 311
7/15/20262827 N LINCOLN AVELake View32Completed12 daysMobile DeviceCity 311
8/30/20263833 N MONTICELLO AVEIrving Park30Completed12 daysInternetCity 311
10/8/20253511 W 57TH STGage Park14Completed12 daysInternetCity 311
9/3/20256517 S BELL AVEChicago Lawn16Completed12 daysPhone CallCity 311
8/29/20251240 N PAULINA STWest Town1Completed12 daysPhone CallCity 311
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