RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4562 locations in the last 30 days (4717 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

55,880 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/9/20262807 N CLYBOURN AVENorth Center32Completed11 daysInternetCity 311
9/14/202610415 S COTTAGE GROVE AVEPullman9Completed11 daysInternetCity 311
8/7/20252217 W MADISON STNear West Side27Completed11 daysInternetCity 311
8/25/20256795 N DOWAGIAC AVEForest Glen45Completed11 daysAlderman's OfficeCity 311
9/29/20252949 S LOOMIS STBridgeport11Completed11 daysAlderman's OfficeCity 311
9/25/20253054 N ALLEN AVEAvondale35Completed11 daysAlderman's OfficeCity 311
8/13/202613438 S BUFFALO AVEHegewisch10Completed11 daysPhone CallCity 311
7/27/20262632 W EASTWOOD AVELincoln Square47Completed11 daysInternetCity 311
10/5/20254141 N LECLAIRE AVEPortage Park38Completed11 daysInternetCity 311
9/20/20268450 S HERMITAGE AVEAuburn Gresham18Completed11 daysPhone CallCity 311
9/12/20252705 W GREGORY STLincoln Square40Completed11 daysInternetCity 311
8/15/2025846 S LOOMIS STNear West Side28Completed11 daysPhone CallCity 311
7/17/20261621 N HUMBOLDT BLVDWest Town26Completed11 daysPhone CallCity 311
9/21/20268749 S WABASH AVEChatham6Completed11 daysPhone CallCity 311
9/8/20255805 S NORDICA AVEGarfield Ridge13Completed11 daysAlderman's OfficeCity 311
7/24/2026529 W 44TH PLNew City15Completed11 daysInternetCity 311
8/31/2026254 W 30TH STArmour Square11Completed11 daysAlderman's OfficeCity 311
10/5/20254123 N LECLAIRE AVEPortage Park38Completed11 daysInternetCity 311
9/1/20255528 W BELMONT AVEBelmont Cragin30Completed11 daysMobile DeviceCity 311
7/31/20262537 S TRUMBULL AVESouth Lawndale22Completed11 daysPhone CallCity 311
7/31/20262754 S CHRISTIANA AVESouth Lawndale22Completed11 daysMobile DeviceCity 311
9/6/20254241 N MOZART STIrving Park33Completed11 daysInternetCity 311
9/24/20263122 W HOMER STLogan Square26Completed11 daysPhone CallCity 311
10/10/20256935 S PAULINA STWest Englewood17Completed11 daysPhone CallCity 311
9/6/20269630 S EWING AVEEast Side10Completed11 daysInternetCity 311
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