RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4448 locations in the last 30 days (4611 reports) · Last sighting 20 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

56,907 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
7/19/20261754 N KEYSTONE AVEHumboldt Park26Completed10 daysInternetCity 311
7/29/20251359 N CENTRAL AVEAustin37Completed10 daysPhone CallCity 311
7/28/20262416 S AVERS AVESouth Lawndale22Completed10 daysPhone CallCity 311
8/18/20264918 N WINCHESTER AVELincoln Square47Completed10 daysInternetCity 311
7/20/20265242 W NELSON STBelmont Cragin31Completed10 daysPhone CallCity 311
8/16/20255902 W WAVELAND AVEPortage Park38Completed10 daysInternetCity 311
9/19/20253021 E 80TH PLSouth Chicago7Completed10 daysAlderman's OfficeCity 311
9/9/20254141 W WELLINGTON AVEAvondale31Completed10 daysPhone CallCity 311
9/8/20263116 S RACINE AVEBridgeport11Completed10 daysInternetCity 311
7/10/20266000 S WOOD STWest Englewood15Completed10 daysPhone CallCity 311
7/28/20262627 S HARDING AVESouth Lawndale22Completed10 daysCity DepartmentCity 311
8/12/20252817 N MOBILE AVEBelmont Cragin30Completed10 daysPhone CallCity 311
9/12/20252823 W 25TH STSouth Lawndale24Completed10 daysPhone CallCity 311
9/9/20254137 W WELLINGTON AVEAvondale31Completed10 daysPhone CallCity 311
9/26/20251237 W WELLINGTON AVELake View32Completed10 daysMobile DeviceCity 311
8/18/20256121 N HAMILTON AVEWest Ridge40Completed10 daysInternetCity 311
7/27/2026524 N PAULINA STWest Town1Completed10 daysInternetCity 311
8/29/20259652 S HAMILTON AVEBeverly19Completed10 daysAlderman's OfficeCity 311
9/12/20252516 S CALIFORNIA AVESouth Lawndale24Completed10 daysPhone CallCity 311
7/20/20262849 N KILDARE AVEHermosa31Completed10 daysInternetCity 311
9/5/20251519 W 105TH STBeverly19Completed10 daysPhone CallCity 311
8/7/20264137 N KEELER AVEIrving Park39Completed10 daysMobile DeviceCity 311
8/18/20261009 S OAKLEY BLVDNear West Side28Completed10 daysInternetCity 311
9/14/20266458 S HAMLIN AVEWest Lawn23Completed10 daysAlderman's OfficeCity 311
8/18/20261011 S OAKLEY BLVDNear West Side28Completed10 daysInternetCity 311
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