RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4696 locations in the last 30 days (4847 reports) · Last sighting 16 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
9/10/20263821 W 64TH STWest Lawn23Completed12 daysInternetCity 311
8/21/20266224 W MONTROSE AVEPortage Park38Completed12 daysMobile DeviceCity 311
9/11/20255338 N KEDZIE AVENorth Park39Completed12 daysInternetCity 311
8/19/20268420 S ST LAWRENCE AVEChatham6Completed12 daysMobile DeviceCity 311
9/12/20256411 N NEW ENGLAND AVENorwood Park41Completed12 daysAlderman's OfficeCity 311
9/11/20257930 W ADDISON STDunning38Completed12 daysInternetCity 311
9/4/20251322 W 32ND PLBridgeport11Completed12 daysInternetCity 311
8/3/20252428 W CORTEZ STWest Town36Completed12 daysInternetCity 311
7/30/20253552 W 62ND PLChicago Lawn14Completed12 daysAlderman's OfficeCity 311
9/25/20262555 N CLARK STLincoln Park43Completed12 daysInternetCity 311
9/18/20252539 N MONTICELLO AVELogan Square35Completed12 daysPhone CallCity 311
8/29/20254925 S HERMITAGE AVENew City20Completed12 daysInternetCity 311
9/11/20255900 W 64TH PLClearing13Completed12 daysInternetCity 311
9/9/2026836 N WOLCOTT AVEWest Town36Completed12 daysMobile DeviceCity 311
9/10/20261818 W SUNNYSIDE AVELincoln Square47Completed12 daysPhone CallCity 311
9/5/20253122 W HOMER STLogan Square26Completed12 daysPhone CallCity 311
9/23/20264560 N MILWAUKEE AVEPortage Park45Completed12 daysPhone CallCity 311
9/25/20261925 W WARNER AVENorth Center47Completed12 daysInternetCity 311
8/29/20254929 S HERMITAGE AVENew City20Completed12 daysInternetCity 311
8/13/20255813 W HIGGINS AVEJefferson Park45Completed12 daysPhone CallCity 311
9/5/2025741 N NOBLE STWest Town27Completed12 daysPhone CallCity 311
9/11/20255852 N MANTON AVEJefferson Park39Completed12 daysInternetCity 311
7/22/20263229 N NEWLAND AVEDunning36Completed12 daysPhone CallCity 311
8/13/20255809 W HIGGINS AVEJefferson Park45Completed12 daysPhone CallCity 311
8/21/20261423 W 110TH PLMorgan Park21Completed12 daysPhone CallCity 311
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