RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4448 locations in the last 30 days (4604 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

56,073 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
9/21/20263236 W AUGUSTA BLVDHumboldt Park26Completed11 daysMobile DeviceCity 311
7/27/20261620 N AVERS AVEHumboldt Park26Completed11 daysAlderman's OfficeCity 311
9/18/20255734 N HERMITAGE AVEEdgewater40Completed11 daysMobile DeviceCity 311
8/31/20263549 S UNION AVEBridgeport11Completed11 daysAlderman's OfficeCity 311
9/27/2025301 W WALTON STNear North Side27Completed11 daysMobile DeviceCity 311
9/11/20255651 N MANGO AVEJefferson Park45Completed11 daysPhone CallCity 311
10/2/20264001 S ARTESIAN AVEBrighton Park12Completed11 daysMobile DeviceCity 311
7/21/20254800 W BYRON STPortage Park45Completed11 daysAlderman's OfficeCity 311
9/12/20251214 W 52ND STNew City20Completed11 daysPhone CallCity 311
8/15/20265151 W CORNELIA AVEPortage Park31Completed11 daysMobile DeviceCity 311
9/22/20253435 W 65TH PLChicago Lawn14Completed11 daysAlderman's OfficeCity 311
8/15/20265059 W CORNELIA AVEPortage Park31Completed11 daysMobile DeviceCity 311
9/6/20252870 W HENDERSON STAvondale33Completed11 daysPhone CallCity 311
7/24/20252200 W GREENLEAF AVEWest Ridge50Completed11 daysInternetCity 311
7/2/20265950 N ODELL AVENorwood Park41Completed11 daysPhone CallCity 311
6/29/20261900 W 59TH STWest Englewood15Completed11 daysPhone CallCity 311
7/2/20262342 N LOCKWOOD AVEBelmont Cragin36Completed11 daysPhone CallCity 311
9/28/20268443 S COLFAX AVESouth Chicago7Completed11 daysInternetCity 311
8/15/20252831 N MONITOR AVEBelmont Cragin30Completed11 daysPhone CallCity 311
8/7/20266457 S SANGAMON STEnglewood16Completed11 daysMobile DeviceCity 311
8/7/20262901 S PRINCETON AVEArmour Square11Completed11 daysInternetCity 311
8/25/20252254 W NORTH AVEWest Town32Completed11 daysInternetCity 311
9/19/20254922 N HAMLIN AVEAlbany Park39Completed11 daysInternetCity 311
9/8/20256540 N CLARK STRogers Park40Completed11 daysInternetCity 311
7/30/20264330 W ADAMS STWest Garfield Park28Completed11 daysPhone CallCity 311
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