RatCity — Chicago Rat and Rodent Sightings Map

RatCity

4340 locations in the last 30 days (4522 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

58,146 reports match your filters.

DateAddressNeighborhoodWardStatusResponse timeReported viaSource
11/10/20257158 S KEDZIE AVEChicago Lawn17Completed2 daysMobile DeviceCity 311
11/10/20251410 N CENTRAL AVEAustin29Completed3 daysInternetCity 311
11/10/20251331 W ALBION AVERogers Park49Completed2 daysInternetCity 311
11/10/20251622 N CENTRAL PARK AVEHumboldt Park26Completed3 daysInternetCity 311
11/10/2025600 S WELLS STLoop34Completed2 daysInternetCity 311
11/11/20259430 S ST LAWRENCE AVERoseland8Completed1 dayMobile DeviceCity 311
11/11/20256439 S YALE AVEEnglewood6Completed1 dayInternetCity 311
11/11/20252426 N NEWCASTLE AVEMontclare36Completed2 daysPhone CallCity 311
11/11/20253011 S ASHLAND AVELower West Side12Completed1 dayPhone CallCity 311
11/11/20254334 N RIDGEWAY AVEIrving Park33Completed2 daysInternetCity 311
11/11/20253833 N SOUTHPORT AVELake View44Completed3 daysPhone CallCity 311
11/11/20256618 N NORTHWEST HWYEdison Park41Completed1 dayPhone CallCity 311
11/11/20253901 N SPAULDING AVEIrving Park33Completed2 daysMobile DeviceCity 311
11/11/20253902 N SPAULDING AVEIrving Park33Completed2 daysMobile DeviceCity 311
11/11/20256319 W HOLBROOK STNorwood Park39Completed2 daysMobile DeviceCity 311
11/11/20252429 N NEWCASTLE AVEMontclare36Completed2 daysPhone CallCity 311
11/11/20255988 N MANTON AVEJefferson Park39Completed2 daysInternetCity 311
11/11/20254208 N BERNARD STIrving Park33Completed2 daysInternetCity 311
11/11/20253838 W DIVISION STHumboldt Park37Completed1 dayInternetCity 311
11/11/20252645 W GREENLEAF AVEWest Ridge50Completed2 daysMobile DeviceCity 311
11/11/20254942 N MONTICELLO AVEAlbany Park33Completed2 daysInternetCity 311
11/11/20258117 S MARSHFIELD AVEAuburn Gresham17Completed1 dayPhone CallCity 311
11/11/20253500 W 79TH PLAshburn18Completed2 daysPhone CallCity 311
11/11/20256439 S LONG AVEClearing13Completed1 dayPhone CallCity 311
11/11/20253800 N CLARK STLake View44Completed3 daysPhone CallCity 311
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