RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4235 locations in the last 30 days (4388 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

56,467 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
10/2/20259236 S ABERDEEN STWashington Heights21Completed8 daysPhone CallCity 311
10/2/20253834 W 105TH STMount Greenwood19Completed5 daysMobile DeviceCity 311
10/2/20256120 S KEDZIE AVEChicago Lawn14Completed13 daysInternetCity 311
10/2/20251144 N LEAMINGTON AVEAustin37Completed8 daysPhone CallCity 311
10/2/20252905 N KENNETH AVEHermosa31Completed13 daysPhone CallCity 311
10/2/202543 W NORTH BLVDNear North Side2Completed8 daysInternetCity 311
10/2/2025660 W LAKE STNear West Side34Completed4 daysMobile DeviceCity 311
10/2/20255760 W GRAND AVEBelmont Cragin36Completed7 daysMobile DeviceCity 311
10/2/20252251 N MONITOR AVEBelmont Cragin36Completed7 daysMobile DeviceCity 311
10/2/20252321 N MENARD AVEBelmont Cragin36Completed7 daysMobile DeviceCity 311
10/2/20255600 S LOOMIS BLVDWest Englewood16Completed6 daysInternetCity 311
10/2/20253063 N HAUSSEN CTAvondale31Completed13 daysInternetCity 311
10/2/20251130 W DIVERSEY PKWYLake View44Completed7 daysInternetCity 311
10/2/20255656 W GRACE STPortage Park38Completed8 daysPhone CallCity 311
10/2/20254718 S INGLESIDE AVEKenwood4Completed6 daysInternetCity 311
10/2/20254801 W MONTROSE AVEPortage Park45Completed8 daysPhone CallCity 311
10/2/20255248 W CRYSTAL STAustin37Completed8 daysInternetCity 311
10/2/20252963 N LAWNDALE AVEAvondale35Completed12 daysInternetCity 311
10/2/20254054 N KIMBALL AVEIrving Park33Completed12 daysMobile DeviceCity 311
10/2/2025826 W ROSCOE STLake View44Completed7 daysMobile DeviceCity 311
10/2/20252598 N MILWAUKEE AVELogan Square35Completed12 daysMobile DeviceCity 311
10/2/20252431 W LUNT AVEWest Ridge40Completed11 daysInternetCity 311
10/2/20251336 N LEAVITT STWest Town1Completed7 daysInternetCity 311
10/2/20252849 W MCLEAN AVELogan Square1Completed7 daysPhone CallCity 311
10/2/20253231 N ORIOLE AVEDunning29Completed6 daysInternetCity 311
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