RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4438 locations in the last 30 days (4600 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
8/18/20261007 S OAKLEY BLVDNear West Side28Completed10 daysInternetCity 311
7/4/20262021 W ADDISON STNorth Center47Completed10 daysMobile DeviceCity 311
10/17/202510615 S TRUMBULL AVEMount Greenwood19Completed10 daysInternetCity 311
9/8/20255100 S LUNA AVEGarfield Ridge23Completed10 daysAlderman's OfficeCity 311
9/29/20256612 N HARLEM AVEEdison Park41Completed10 daysPhone CallCity 311
8/15/20255804 N MERRIMAC AVENorwood Park45Completed10 daysMobile DeviceCity 311
10/7/20254891 N AUSTIN AVEJefferson Park45Completed10 daysMobile DeviceCity 311
7/29/2025203 N LOREL AVEAustin37Completed10 daysPhone CallCity 311
9/25/20261941 N SAWYER AVELogan Square26Completed10 daysInternetCity 311
9/2/20255028 N MOBILE AVEJefferson Park41Completed10 daysAlderman's OfficeCity 311
8/30/20255704 W BYRON STPortage Park38Completed10 daysMobile DeviceCity 311
8/18/20262715 S NORMAL AVEBridgeport11Completed10 daysInternetCity 311
9/27/20263119 S HALSTED STBridgeport11Completed10 daysPhone CallCity 311
7/24/20264845 N DRAKEAlbany Park33Completed10 daysSalesforce Mobile AppCity 311
8/18/20254832 N KEELER AVEAlbany Park39Completed10 daysInternetCity 311
9/8/20253417 S PRAIRIE AVEDouglas4Completed10 daysInternetCity 311
8/11/20265636 W CORNELIA AVEPortage Park30Completed10 daysInternetCity 311
8/2/20266914 S LOOMIS BLVDWest Englewood17Completed10 daysInternetCity 311
9/12/20255136 S RICHMOND STGage Park14Completed10 daysAlderman's OfficeCity 311
8/18/2026464 W 28TH STBridgeport11Completed10 daysInternetCity 311
8/15/20264524 N MEADE AVEPortage Park38Completed10 daysMobile DeviceCity 311
7/29/20253512 N CLAREMONT AVENorth Center32Completed10 daysPhone CallCity 311
10/4/20253056 N RACINE AVELake View32Completed10 daysPhone CallCity 311
9/14/20255131 S GREENWOOD AVEHyde Park5Completed10 daysPhone CallCity 311
7/24/20267939 S MERRILL AVESouth Chicago8Completed10 daysPhone CallCity 311
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